Tuesday, November 12, 2013


1.    Plant ash contains :
    (a) Only organic substances
    (b) Only minerals
    (c) Water    (d) both (a) and (b) correct
2.    Number of essential elements are :
    (a) 60        (b) 30    (c) 17    (d) 9
3.    The criteria for essentiality of elements was given by
    (a) Woodward        (b) Amon
    (c) De Saussure        (d) None of these
4.    Which is the criterion, on the basis of which, you will determine that particular element is essential?
    (a) In its absence, plant is unable to complete its life cycle.
    (b) Element is specific
    (c) It has direct role in metabolism
    (d) All of the above
5.    ‘Plastocyanin’ (PC) contains:
    (a) Mo    (b) Mn    (c) Fe    (d) Cu
6.    Chlorophyll is formed in presence of
    (a) Cu and Fe        (b) Mo and Cl
    (c) Mg            (d) Fe and Mg
7.    Which elements are required for photolysis of ?
    (a) Zn and Mn        (b) Mn and Cl
    (c) Cl and Mg        (d) Fe and Mn
8.    Which element facilitates translocation of sugars in plants?
    (a) Zn    (b) K    (c) B    (d) Mo
9.    Which of the following elements is essential for synthesis of IAA?
    (a) Fe    (b) Zn    (c) B    (d) Mn
10.    ‘Khaira disease of rice’ is due to :  ( NEET )
    (a) Fungus        (b) Bacteria
    (c) Zn deficiency    (d) Mo deficiency
11.    Nitrogen fixation is facilitated by:
    (a) Cu    (b) B    (c) Zn    (d) Mo   
12.    Critial elements:            ( NEET )
    (a) Which are in more concentration in soil
    (b) Which are commonly deficient in soil
    (c) Which are above in soil
    (d) None of the above
13.    Protein lecithin theory of mineral salt absorption was put forward by :    ( NEET )
    (a) Lundegardh and Burstrom
    (b) Bennet Clark
    (c) Vanden Honert
    (d) None of the above
14.    The metal ion invloved in stomatal regulation is :
    (a) Iron            (b) Magnesium   
    (c) Zinc            (d) potassium
15.    Anthocyanin pigment synthesis in leaves is encouraged by degiciency of :    ( NEET )
    (a)     (b)         (c) (d)
16.    In legumes, root nodules formation is inhibited by deficiency of :
    (a) Mo    (b) B    (c) Cu    (d) Mn
17.    Synthesis of chlorophyll and cytochrome system is affected by deficiency of :
    (a) Fe    (b) N    (c) P    (d) B
18.    Transcription and translation, both, affected by deficiency of :
    (a) Mg ions        (b) K ions
    (c) Calcium        (d) Boron
19.    Catalytic functions are controlled by elements like:
    (a) Ca, Mg, K, Na   
    (b) Cu, Fe, Mg, Mn, Mo
    (c) C, H, O, N, S, F    (d) None of these
20.    Necrosis means:
    (a) Over-growth    (b) Undergrowth
    (c) Death of cells, tissues or organs
    (d) Yellowing
21.    Defieincy of iton causes:
    (a) decreases in protein synthesis
    (b) Reduced leaves and stunted growth
    (c) Interveinal chlorosis first on young leaves
    (d) Bending of leag tip
22.    During of iron causes:        ( NEET )
    (a) Formation of aminoacyl tRNA
    (b) Formation of peptidy tRNA
    (c) Detachment of ribosomal subunits
    (d) Detachment of initiation and elongation factors.
23.    Aminoacyl tRNA becomes peptidy tRNA due to the activity of        ( NEET )
    (a) EFG            (b) EFT
    (c) Peptiayl transferase
    (d) Aminoacyl RNA synthasis
24.    The codon UAA is recognized by( NEET )
    (a)     (b) (c)  (d)
25.    The amino acyl tRNA never occupies the ‘A’ site of ribosome            ( NEET )
    (a) Methionyl tRNA
    (b) Formyl methionyl tRNA
    (c) Valonyl tRNA    (d) Glycinly tRNA
26.    The codon present at the beginning of mRNA is
    (a) GUA        (b) AUG   
    (c) UAG        (d) AGU
27.    A peptide bond is formed between
    (a) -COOH groups of adjacent aminoacids
    (b) Amino group of 1st aminoacid and -COOH group of next aminoacid
    (c) -COOH group of first and R group of next aminoacid
    (d) -COOH group of first and - group of next aminoacid
28.    Amino acid can form ester bond with the following nucleotide of tRNA
    (a) AMP        (b) GMP
    (c) CMP        (d) UMP
29.    If a polypeptide chain has 158 amaino acids, the number of nitrogen bases present in the coding region of mRNA is
    (a) 158    (b) 159    (c) 474    (d) 477
30.    The anticodon for methionyl tRNA is
    (a) CAC        (b) UAC
    (c) CAA        (d) GUG
31.    If the codon on mRNA is ‘AGU’ , the nitrogen base sequence of sense strand of DNA is                 ( NEET )
    (a)     (b)
    (c)     (d)
32.    Transcription and translation can occur simulataneously in
    (a) Chlorella    (b) Rhizopus
    (c) Spirogyra    (d) E.coli
33.    During the formation of formyl methionine, formyl group is attached to the following of methionine            ( NEET )
    (a) carbon        (b) -COOH group
    (c)  group    (d) Alkyl group
34.    Information for the formation of a particular mRNA is present in
    (a) RNA polymerase    (b) Sense strand
    (c) Anticoding strand   
    (d) Both sense strand and anti-sense strand of DNA
35.    Identify the correct statement with respect to protein synthesis        ( NEET )
    (a) GTP is involved in chain termation
    (b) GTP are utilized for aminoacid activation
    (c) All tRNA molecules must pass through the P-site of ribosome
    (d) All tRNA molecules must visit the A-site or ribosome
36.    Energy present inhigh energy phosphate bond not directly consumed during the following events to translation
    (a) Movement of peptidyl tRNA from A-site of ribosome
    (b) Attachment of aminoacyl tRNA to A-site of ribosome
    (c) Release of initiation factors from ribosome
    (d) Peptide bond formation
37.    In the synthesis of a polypeptide chain, 20 GTP are utilized during chain elongation. What is the total number of nucleotides present in the coding region (open reading frame) of mRNA for the synthesis of that protein            ( NEET )
    (a) 360    (b) 180    (c) 186    (d) 183
38.    Identify the factor not associated with GTP
                    ( NEET )
    (a) EF-T        (b) EF-G
    (c)             (d)
39.    Identify the pair of translation factors, in which one factor of the pair can carry out the same function carried out by the other factor of the pair
    (a)  and     (b)
    (c)      (d)    
40.    Translocation is due to the movement of
    (a) Aminoacyl tRNA
    (b) Peptidyl tRNA
    (c) mRNA
    (d) Ribosome
41.    If the total number of translocations during the synthesis of a polypeptide chain is 100, the total number of ATP and GTP utilized during the translocation is        ( NEET )
    (a) 100 ATP, 200 ATP
    (b) 100 ATP, 199 GTP
    (c) 101 ATP, 201 GTP
    (d) 101 ATP, 200 GTP
42.    This nitrogen base does not form any codon
    (a) Adenine        (b) Guanine
    (c) Cytosine        (d) Thymine
43.    The following aminoacid is subjected to formylation during protein synthesis in organisms like E.coli.
    (a) Tryptophan        (b) Valine
    (c) Leucine        (d) Methionine
44.    This codon is not exposed at P-site ribosome
    (a) GUG   (b) AUG   (c) UGA    (d) UGC
45.    If the anticodon on tRNA is ( NEET )    , the corresponding sequence on sense strand is
46.    The movement of Rhizobia towards roots is described as            ( NEET )
    (a) Chemotrophy    (b) Chemotaxy
    (c) Spontaneous movement
    (d) Phototrophy
47.    Amino acyl synthetase enzyme helps in
    (a) Transcription    (b) Chain initiation
    (c) Chain elongation   
    (d) Activation of aminoacid
48.    Umber codon is             ( NEET )
    (a) UAA        (b) UAG
    (c) GAG        (d) UGA
49.    Cytochrome oxidase contains:
    (a) Mg    (b) Fe    (c) Hg    (d) CO
50.    Micronutrients:
    (a) Are is important as macronutrients
    (b) Are less imprtant than macronutrients
    (c) Are called ‘micro’ as they play only a minor role in plant nutrition.
    (d) May be omitted from culture media without any detrimental effect on the plant
51.    Presence of phosphous in a plant: ( NEET )
    (a) Brings about healthy root growth
    (b) Promotes fruit ripening
    (c) Retards protein formation
    (d) None of the above
52.    The four elements that make up 99% of all elements found in a living system are
    (a) H, O, C, N        (b) C, H, O, S
    (c) C, H, O , P        (d) C, N, O , P
53.    A red pigment leghamoglobin in root nodules of legumes in helpful in nitogen fixation by:
    (a) Providing oxygen
    (b) Helping in aerobic respiration
    (c) Removal of oxygen
    (d) None of the above
54.    ‘Hunger sign’s in plants are:
    (a) Symptoms due to lesser water absorption in plants
    (b) Symptoms due to porr photosynthesis in plants
    (c) Deficiency symptoms of particular mineral nutrients
    (d) None of the above
55.    In absence of essential mineral elements, leaves of manyplants turn yellow due to
    (a) Plasmolysis        (b) Chlorosis
    (c) Necrosis        (d) Etiolation
56.    Permeability of protoplasm in accelerated by:
    (a) K    (b) Na        (c) Ca    (d) P
57.    In fruit trees a disease ‘exanthema’ is caused by the defiency of:
    (a) Na    (b) Ca        (c) Cu    (d) P
58.    Salt respiration is         ( NEET )
    (a) increase in respiration during mineral absorption
    (b) decrease in respiration during salt absorption
    (c) Linking ion movement with respiratory chain
    (d) secretion of salt through respiratory channels
59.    Non- symbiotic nitrogen fixing prokaryote is
    (a) Frankia        (b) Azotobacter
    (c) Rhizobium        (d) Acetobacter
60.    main role of minor elements is to act as
    (a) constituent of hormones
    (b) binder of cell structure
    (c) cofactor of enzymes
    (d) constituent of amino acids
61.    Ammonia is oxidised to nitrites by the baceria
    (a) Nitrosomonas   
    (b) Nitrobacter
    (c) Nitrosococcus   
    (d) Pseudomonas
62.    Which of the following is not the funtion of iron as nutrient in plant?
    (a) as a constituent of ferridoxin and cytochromes
    (b) synthesis of chloroplast protein
    (c) activates the enzyme catalase
    (d) activates the enzyme carboxylase
63.    Column - I        Column - II
    a) Denitrification    i)Nitococcus
    b) Prokaryotes        ii) Nitrogenase
    c) Sachs        iii) Magnesium
    d) Macronutrients    iv) Hydroponics
    e) Nitrofication        v) Thiobacillus
    f) Micronutrients    vi) Copper
        a    b    c    d    e    f
    (a)    v    ii    iv    iii    i    vi
    (b)    iv    iii    ii    i    vi    v
    (c)    iii    vi    v    iv    i    ii
    (d)    vi    iv    iii    v    i    ii
64.    Which of the following can fix the atmospheric nitrogen both in symbiotic and non-symbiotic manner?
    (a) Clostridium    (b) Anabaena
    (c) Azotobacter    (d) Rhizobium
65.    About 98% of the mass of every living organism is composed of just six elements including carbon, hydrogen, nitrogen, oxygen and         ( NEET )   
    (a) Phosphorus and sulphur
    (b) Sulphur and magnesium
    (c) Magnesium and sodium
    (d) calcium and phosphorus
66.    A plant requires magnesium for
    (a) Holding cells together
    (b) Protein synthesis
    (c) Chlorophykll synthesis
    (d) cell wall development
67.    Which of the following is a flowering plant with nodule’s containing filamentous nitrogen fixing nodules containing filamentous nitrogen - fixing micro organisms?
    (a) Casuarina equisetifolia
    (b) Crotalaria juncea
    (c) Cycas revoluta
    (d) Cicer areitinum
68.    Which one of the following elements is not an essential micronutrient for plant growth?
    (a) Mn    (b) Zn    (c) Na    (d) Ca
69.    Nitrates are converted into nitrogen by
    (a) Nitrogen fixing bacteria
    (b) Sulphur fixing bacteria
    (c) Denitrying bacteria
    (d) None of the above
70.    The number of essential nutrients needed in plants is
    (a) 17    (b) 5    (c) 4    (d) 8
71.    A nutritionally wild type organisms, which does not require any additional growth supplement is known as       ( NEET )
    (a) Phenotype    (b) Holotype
    (c) Auxotroph    (d) prototroph
72.    The deficiencies of micronutrients not only affects growth of plants but also vital functions, such as photosynthetic and mitochondrial electron flow. Among the list given below, which group of three elements shall affect most, but photosynthetic and mitochondrial electron transport?
    (a) Cu, Mn and Fe   
    (b) Co, Ni and Mo
    (c) Mn, Co and Ca   
    (d) Ca, K and Na 
1-10           b    c    d    d    d    d    b    c    b    c   
11-20        d    b    b    d    a    a    a    a    b    c
21-30        c    d    a    a    b    b    b    a    d    b   
31-40        d    d    c    c    c    d    c    c    c    d
41-50        c    d    d    c    d    a    d    a    b    a
51-60        a    a    c    c    b    a    c    a    b    c
61-72        a    d    a    b    a    c    a    c    c    a    d    a   



1.    Which branch of botany deals with functional aspects of plants?
    (a) Morphology        (b) Physiology
    (c) Ecology        (d) Embryology   
2.    Who is called father of plant physiology?
    (a) Calvin        (b) J.C. Bose
    (c) Stephen Hales    (d) Van Helmont
3.    If the cell is placed inhypertonic solution, what will happen?
    (a) Endosmosis        (b) Exosmosis
    (c) Deplasmolysis    (d) No change
4.    Diffusion pressure of pure solvent it:
    (a) Always more than its solution
    (b) Sometimes more than its solution
    (c) Less than its olution
    (d) Equal to its solution
5.    Suction pressure of cell as: (NEET)
    (a) Equal to wall pressure
    (b) Equal to turgor pressure
    (c) Equal to DPD
    (d) Osmotic pressure
6.    DPD (NEET)
    (a) OP X TP    (b) OP + TP
    (c) OP - WP    (d) TP - WP
7.    What will be zero in a fully turgid cell?
    (a) Pressure potential     (b) Osmotic potential
    (c) Water potential    (d) OP
8.    Plasma membrane controls:
    (a) Passage of
    (b) Passage of water and some solutes preferably in ionic form into and out of the cell
    (c) Passage of water and solutes into the cell
    (d) Passage of cell contents out of the cell
9.    In a flaccid cell, what will be zero? (NEET)
    (a) SP    (b) OP    (c) DP    (d) WP
10.    In a flaccid cell: (NEET)
    (a) SP = TP    (b) water optential = OP
    (c) SP > OP    (d) SP < OP
11.    Whater potential can be calculated as
    (a)     (b)
    (c) Osmotic Potential + Pressure potential
12.    Which of the following is aganist concentration gradient of solutes?
    (a) Transpiration    (b) Translocation
    (c) Diffusion        (d) Osmosis
13.    Seeds when placed in water swell because of
    (a) Osmosis        (b) Root pressure
    (c) Imbibition        (d) Diffusion
14.    Cell A with OP = 6 and WP =  5 is surrounded by the cells with OP = 3 and TP = 2, What will be direction of water movement? (NEET)
    (a) From A to other cells
    (b) From other cells to A
    (c) No net movement
    (d) Waer will move up
15.    OP of the cell can be measured by : (NEET)
    (a) Monometric method
    (b) Photometric method
    (c) Plasmolytic method
    (d) Colorimetric method
16.    What determines the diffusion of water from one cell to other cell?
    (a) OP            (b) WP   
    (c) water ptential    (d) TP
17.    Cell A has osmotic pot = -8 bars and pressure pot = 5 bars and cell B has osmotic pot = -12 bars and wall pressure 2 bars, what is direction of flow
    (a)         (b)
    (c) No movement    (d)
18.    Why plants die when over fertilized?
    (a) As a result of dehydration or exosmosis
    (b) Due to damage of walls of root hairs
    (c) Due to blockage of nitrogenous ions
    (d) Due of upsets in soil environment by poisonous soil bacteria.
19.    The form and structure of cell is maintained due to
    (a) Atmospheric pressure
    (b) Plasmolysis     (c) Turgidity     (d) WP
20.    The root hairs arise from:
    (a) Pericycle        (b) Epiblema
    (c) Endodermis        (d) Cortex
21.    The root hairs zone in roots is :
    (a) Permanent        (b) Temporary
    (c) Both (a) and (b)    (d) None of these
22.    Root hairs are more developed in  (NEET)
    (a) herbs    (b) Shrubs
    (c) Trees    (d) Equality developed
23.    Water will be absorbed by root hairs when :
    (a) Concentration of salts in soil is high
    (b) Concentration of solutes in the cell sap is high
    (c) Plant is rapidly transpiring
    (d) They are separated from soil by semipermeable membrane
24.    Water from the soil enters into the root hairs on account of:
    (a) TP or WP
    (b) water potential gradient
    (c) Barometric pressure
    (d) Osmotic pressure
25.    The soil is physiloically dry when:
    (a) It has no hygroscopic water
    (b) conc. of soil solution is higher than cell sap
    (c) Soil temp is
    (d) Excess of  in soil
26.    Which of the following does not involve osmosis?
    (a) Water passing from root hais to adjacent cells
    (b) Water passing up a xylem element to another element above it
    (c) Waterentering mesophyll cell from xylem elements
    (d) Water from soil into the root hair
27.    The absorbed water can rise to highest point by :
    (a) Root pressure    (b) Imbibition force
    (c) Force of capillary    (d) Transpiration pull
28.    Water potential in dry seed is determined by
    (a) Osmotic potential    (b) Pressure potential
    (c) Matric potenital    (d) all the above
29.    Girdling experiment was first performed by :
    (a) Kramer        (b) J.C. Bose
    (c) Strasburger        (d) hartig
30.        The pressure developed in tracheary elements of xylem due to merabolic activity of roots is called :
    (a) OP            (b) TP
    (c) Root pressure (d) Atmospheric pressure
31.    Root pressure is measured by: (NEET)
    (a) Potometer    (b) Baromter
    (c) Manometer    (d) Auxanometer
32.    Root pressure is maximum when :
    (a) Transpiration is high and absorption is low
    (b) transpiration is very low and absorption is high
    (c) Both are very high
    (d) Both are very low
33.    Sir J.C Bose was supporter of .... theory of ascent of sap.
    (a) Root pressure theory
    (b) Physical force theory
    (c) Vital force theory
    (d) None of these
34.    Term ‘Root pressure’ was first given by:
    (a) Priestly    (b) Stephen Hales
    (c) Syocking    (d) Godlewski
35.    Diffusion pressure declines by :
    (a) Addition of solute to solvent
    (b) Addition of solvent in solute
    (c) Diluting a solution
    (d) None of the above
36.    Ascent of sap in absence of roots was observed by
    (a) J.C Bose    (b) Priestly
    (b) Strasburger    (d) None of these
37.    Inverse correclation is observed in between (NEET)
    (a) Pressure potential and water potential
    (b) TP and WP   
    (c) DPD and SP
    (d) None of the above
38.    The theory of Dixon and Jolly gets support from (NEET)
    (a) dendrographic measurements
    (b) Porous pot experiment
    (c) High tensile strength strength of xylem sap
    (d) All of these
39.    Swelling of wooden doors during rainy season is due to:
    (a) Endosmosis    (b) Deplasmolysis
    (c) Capillarity    (d) Imbibition
40.    Many transplanted plants do not survive due to (NEET)
    (a) They do not like new soil
    (b) They do not get required mineral salt
    (c) Most of the root hairs are lost during transplantation
41.    A solution of 1m sucrose is sujected to an osmometer. It develops a pressure of 27 bars. Whihc of the following is correct?     (NEET)
    (a) Osmotic potential of solution is = 27 bars
    (b) Osmotic pressure is = 27 bars
    (c) Pressure potential is = 27 bars
    (d) Wall pressure is = 27 bars
42.    When a plant wilts, sequence of events will be as:
    (a) Exosmosis, deplasmolysis, plasmolysis, temporary and permanent wilting
    (b) Exosmosis, plasmolysis, deplasmolysis temporary and permanent wilting
    (c) Exosmosis, plasmolysis, temporary and permanent wilting
    (d) None of the above
43.    Pulsation theory of ascent of sap was proposed by
    (a) Dixon and Jolly    (b) J.C. Bose
    (c) Curtis and Clarke    (d) None of these
44.    First theory for the ascent of sap was proposed by
    (a) Westermaier        (b) J.C.bose
    (c) Godlewski        (d) Stephen Hales
45.    A girdled tree (upto bast) ,ay survive for some time but it will eventually die because.
    (a) Water will not move upwards
    (b) Water wull not move upwards
    (c) Sugars and other organic meterials will not move downwards
    (d) Sugars and other organic marerials will not move upwards
46.    How does the removal of a ring of bark and wood from the trunk of a tree kills ?
    (a) Mineral salts cannot go up
    (b) Immediate sroppage of photosynthesis
    (c) Food and water cannot be translocated
    (d) The exposed part dies due to heat
47.    Vital force theory for the ascent of sap was proposed by : (NEET)
    (a) Stephen Hales    (b) Boehm
    (c) Sachs        (d) Goldewski
48.    Which of the following contributes most to transport of water from the ground to the levels of a tall tree?
    (a) Break down of ATP
    (b) Root pressure
    (c) Capillary rise of water in xylem
    (d) Cohesion of water and transpiration pull
49.    Xylem vessels are found in :
    (a) Gymnosperms only
    (b) Pteridophytes only
    (c) Angiosperms
    (d) Dicot plants only
50.    The cohesive force of water is due to:
    (a) S-bonds    (b) O-bonds
    (c) H-bonds    (d) OH-bonds
51.    When stem of plant is girdled (ringed) :
    (a) The root dies first
    (b) The shoot dies first
    (c) The roots and the shoot will die at the same time
    (d) Neither the root nor the shoot wilts
52.    Diffusion pressure is directly proportional to:
    (a) Concentration of molecules diffusing
    (b) Kinetic energy of diffusing molecules
    (c) Concentration gradient
    (d) All of the above
53.    What should happen if a thin slice of sugar beet is placed in a concentrated solution of NaCl?
    (a) It should becomes turgid
    (b) It should neither absorb water nor loose it
    (c) It should absorb water from the NaCl solution
    (d) It should loos water from the cells
54.    Epidermal peeling of Tradescantia leaf is used for demonstrating:
    (a) Plasmolysis and deplasmolysis
    (b) Active absorption
    (c) Passive absorption
    (d) Mineral absorption
55.    If cell A with OP = 5 and TP = 4 is surrounded by the cells with OP = 3 and TP = 1, what will be direction of water movement? (NEET)
    (a) Water will not move up
    (b) Water will move up
    (c) From cell A to other cell
    (d) From other cells to cell A
56.    Ringing (girdling) experiment cannot be performed in
    (a) Sugarcane    (b) Mango
    (c) Indian rubber plant    (d) Tectona
57.    amount of water left in soil after through drainage of gravitational water is known as: (NEET)
    (a) Field capacity    (b) Storage capacity
    (c) Soil water    (d) Gravitational capacity
58.    Which of following is correct regarding the translocation of substances in vascular tissues of plants?
    (a) Organic substances, e.g, sugars are transported upward in the xylem
    (b) Organic substances move up and down the phloem
    (c) Salts and other inorganic substances move downward only through the xylem
    (d) Inorganic substances move upward only through the phloem
59.    Opening and closing of stomata is due to the
    (a) hormonal change in guard cells
    (b) change in turgor pressure of guard cells
    (c) gaseous exchange
    (d) respiration
60.    Guard cells help in
    (a) transpiration        (b) guttation
    (c) fighting against infection
    (c) protection against grazing
61.    Which of the following helps in ascent of sap?
    (a) root pressure    (b) transpiration
    (c) capillarity        (d) all of these
62.    The process of water exudation through hydathodes is called
    (a) excretion        (b) transpiration
    (c) guttation        (d) hydrolysis
63.    Active  exchange mechanism for opening and closing of stomata was given by
    (a) Khorana        (b) Levitt
    (c) Deblin        (d) Seath
64.     Which of the following theory gives the latest explanation for the closure of stomata?
    (a) ABA theory    (b) Munch theory
    (c) Starch glucose theory
    (d) Active  tansport theory
65.    Which of the following chemical serves as an antitranspirant in plants? (NEET)
    (a) cobalt chloride
    (b) dimethyl mercury
    (c) potassium iodide
    (d) phenyl mercyric acetate
66.    Guttation is the release of liquid water from veins at the leaf margins. it is caused by
    (a) transpiration
    (b) high leaf pressure
    (c) high root pressure
    (d) clogged tracheids or vessel elements
67.    Transpiration is measured by (NEET)
    (a) potometer        (b) dendometer   
    (c) porometer        (d) Moll’s apparatus
68.    Wilting of plant occurs when
    (a) xylem is blocked
    (b) phloem is blocked
    (c) epidermis and few root are removed
    (d) pith is removed
69.    The soil water available for absorption by plant roots is
    (a) rain water        (b) capillary water
    (c) chemically bound water
    (d) gravitational water
70.    Translocation of minerals takes place through
    (a) phloem         (b) xylem
    (c) cambium    (d) wood parenchyma
71.    The continuity of water column in xylem is maintained due to
    (a) evaporation power of water
    (b) cohesive property of water
    (c) presence of air bubbles
    (d) none of the above
72.    ‘Transpiration is a necessary evil”, this statement belongs to
    (a) Burgerstein        (b) Reschke
    (c) Curtis        (d) Willmer
73.    Who among the following scientists first gave the starch sugar interconversion theory for stomatal movements? (NEET)
    (a) Loftfield        (b) Lloyd
    (c) Sayre        (d) Von Mohl
74.    Some carrier proteins allow transport only if two types of molecules move together. This is called co-transport. It may be
    (a) Symport        (b) antiport
    (c) (a) and (b)        (d) equiport
75.    Stomata open when the guard cells have
    (a) more         (b) less
    (c) more abscissic acid    (d) all of these
76.    Which of the following is not afactor controlling osmosis
    (a) presence of semipermeable membrane
    (b) concentration gradient
    (c) colour of substance
    (d) difference in pressure
77.    Water potential is not measured in
    (a) atmosphere        (b) bars
    (c)pascals        (d) molar unit
78.    Which is the first to occur in seed germination
    (a) diffusion        (b) imbibition
    (c) osmosis        (d) none
79.    Column - I        Column - II (NEET)
    (a) Priestley    i) Capillary force theory
    (b) Boehm    ii) Osmotic theory
    (c) Godlewski    iii) Root pressure theory
    (d) Atkins    iv) Realy pump theory
    (e) Sachs    v) Imbibition theory
            a    b    c    d    e
        (a)    iii    i    iv    ii    v
    (b)    iv    i    v    ii    iii
    (c)    v    iii    iv    i    ii
    (d)    ii    v    iii    iv    i
80.    Which arbitrary values of DPD, OP and TP appear correct for a turgid cell? (NEET)
    (a) DPD 02 atm ; OP 07 atm ; TP 5 atm
    (b) DPD 00 atm; OP 15 atm ; TP 15 atm
    (c) DPD 10 atm; OP 15 atm ; TP 6 atm
    (d) DPD 05 atm; OP 12 atm ; TP 7 atm
81.    Bacteria cannot survive in a highly salted pickle because:
    (a) Salt inhibits reproduction of bacteria
    (b) Enough light is unavaiable for photosynthesis
    (c) They become plasmolysed and killed
    (d) Nutrients in the pickle medium cannot support life
82.    Osmoscope is used for :
    (a) Measuring OP    (b) Measruing TP
    (c) Measuring
    (d) Demonstration of osmosis
83.    Osmosis means :
    (a) movement of molecules from higher concentration to lower concentration
    (b) Uptke of water by roots
    (c) Passage of solvent from a weaker solution to stronger solution across a semipermeable membrane
    (d) passage of solvent from a weaker to a stronger solution
84.    The main difference between active and passive transport across cell membrane is that:
    (a) Active transport is more rapid than passive
    (b) passive transport is non-selective
    (c) Passive transport is due to the concentration gradient across the cell membrane whereas active transport is due to metabolic energy
    (d) Passive transport is confined to anions, whereas active transport is confined to cations only
85.    Id cells kept for sometime in 1 M solution of sucrose and 1 M solution of NaCl. The water potenital  of the cells kept in : (NEET)
    (a) Sucrose solution will be greater
    (b) NaCl solution will be grater
    (c) Both will be equal
    (d) Sucrose solution would be lower and NaCl solution would be greater
86.    Water is absorbed when outside solution is
    (a) Hypertonic        (b) Hypotonic
    (c) Isotonic        (d) None of these
87.    Actively growing plant tissues have a water content of
    (a) 20 - 40%        (b) 40 - 50%
    (c) 65 - 75%        (d) 85 - 90%
88.    0.5 M  sucrose solution develops a pressure of 15 bars in an osmometer, which of the following statement is wrong for such asolution?
    (a) That its osmotic potenital is - 15 bars
    (b) That its water potential is - 15 bars
    (c) That is pressure potential is -15 bars
    (d) That its osmotic pressure +15 bars
89.    Osmosis involves
    (a) Cell to cell movement of water
    (b) Movement of water through cortical cells
    (c) Passive absorption of water through roots
    (d) All of the above
90.    Water absorption through roots can be increased by
    (a) Increased transpiration
    (b) Increased rate of phtosunthesis
    (c) Decreased transpitation
    (d) Decreased absorption of ions
91.    What happens when a formalin preserved filament of Spirogyra is placed a hypertonic sugar solution?
    (a) It losse turgidity    (b) it gains turgidity
    (c) It is plasmolysed    (d) Nothing happens
92.    Imbibition process involves
    (a) both diffusion and capillary action
    (b) Only diffusion
    (c) Only capillary action
    (d) None of the above
93.    A cell placed in hypertonic solution plasmolyses, the space between the cell wall and plasmolysed contents is filled with;
    (a) Water    (b) Cell sap
    (c) Hypertonic solution or outer solution
    (d) Hypertonic solution and cell sap
94.    Root pressure is due to :
    (a) Passive absorption
    (b) Active absorption
    (c) Increase in transpiration
    (d) Increase in photosynthesis
95.    Root hairs cells under ordinary conditions typically have water potential inthe range of
    (a) 1 to 4 atmospheres
    (b) -1 to -4 atmospheres
    (c) 1 to 2 atmospheres
    (d) -1 to 2 atmospheres
96.    The direction and rate of water movement form cell to cell is based on  (NEET)
    (a) Wp             (b) TP
    (c) DPD gradient(d) Incipient plasmolysis
97.    A higher plant cell, impregnated with cutin and suberin is placed in water, what would happen after 15 minutes? (NEET)
    a)cell size will increase
    b) cell size will decrease
    c)no change in the cell
    d) cell would be killed
98.    Osmotic pressure of cell sap is highest in  (NEET)
    (a) Halophytes        (b) Mesophytes
    (c) Hydrophytes    (d) Lithophytes
99.    Conduction of sap in plants occurs through :
    (a) heart wood only    (b) Sap wood only
    (c) Xylem as whole    (d) All these
100.    Water potential of a ell is lowered by
    (a) Addition of solutes
    (b) Increasing temperature
    (c) Addition of water
    (d) Decreasing the tmperature
101.    Water potential is the measure of
    (a) Tendency of water of evaporate
    (b) Tendency of water to move from one place another
    (c) Tendency to condense
    (d) None of the above
102.    Water can not diffuse through
    (a) Cutocularized or suberized wall
    (b) Lignified wall and cellulosic wall
    (c) Silica rich wall of diatoms and fungual cell wall
    (d) plasma membrane and bacterial cell wall
103.    Water is absorbed on colloidal molecules by
    (a) Exosmosis        (b) Imbibition
    (c) Endosmosis        (d) Plasmolysis
104.    Rate of imbiition is more in
    (a) protein    (b) Carbohydrates
    (c) Cellulose    (d) None of these
105.    Which part of cell does not imbibe water/
    (a) Cell wall    (b) protoplasm   
    (c) cell sap    (d) Nucleoplasm

    The following question consists of two statements each assertion (A) and reason (R). To answer these questions, mark the correct alternative as directed below:
(a) Both A and R are true, and R is the correct explantation of A.
(b) Both A and R are true, and R is not the correct explanation of A.
(c) A is true R is false
(d) Both A and R are false
 106.    (A) : Aquaporins are membrane proteins for passive transport of water soluble substances
    (R) : Hydrophilic solutes  find it difficult to pass through cell membrane
107.    (A) : A cell is deficient in turgor is called flaccid
    (R) : A flaccid cell will show exosmosis
108.    (A) : Lenticular transpiration continues throughout the day and light
    (R) : Cuticular transpiration containues throughout the day and night
109.    (A) : Loss of water produces a negative hydrostatic pressure of tension
    (R) : It develops in xylem due to loss of water through guttation
110.    (A) : The water potential of solutions is always more then zero
    (R) : Chemical potential of pure water is less than zero
111.    (A) : Water potential is new term for diffusion pressure deficit
    (R) : Both diffusion pressure deficit and water potential have a negaive value
112.    (A) : Xerophytes have lower osmotic pressure than the aquatic plants
    (R) : Upper leaves have lower osmotic presure due to high transpiration
113.    (A) : Wilting occurs due to loss in turgidity
    (R) : Turgor pressure checks the excessive entry of water into cells
114.    (A) : per,amemt wilting result in plant death
    (R) : Stomata show reversible turgor changes
115.    (A) : Stomata are “turgor operted valves”
    (R) : Stomata show reversible turgor changes
116.    (A) : Turgor pressure is also called hydrostatic pressure
    (R) : Turgor pressure keeps the cell flaccid
117.    (A) : A plant cell is an osmotic system
    (R) : The cell sap is osmotuically active solution
118.    (A) : The plant cell burst        in a hypotonic solution    
    (R) : Exosmosis occurs in a plant cell hypotonic solution
119.    (A) : Meat, fish and pickles are salted before storage
    (R) : Slats induce endosmosis
120.    (A) : Plants growing in arid regions are mostly deep rooted
    (R) : Shallow rooted platns cannot survive dry periods
121.    (A) : Plant roots use capillary water
    (R) : Capillary water is not affected by gravitational force
122.    (A) : Field capacity is maximum in loam soil    (R) : In water logging condition, the soil has maximum field capacity
123.    (A) : plants absorb water mosttly by roots
    (R) L Root cap region participates actively in water absorption
124.    (A) : Root hairs are unicellular
    (B) : Root hairs are specialized for water absorption
125.    (A) : Active water absorption by roots need metabolic energy
    (R) : Passive water absorption by roots occurs aganist its concetration gradient
136.    (A) : Upward movement of water is called ascent of sap
    (R) : Upward movement of water occuts through xylem and phloem
127.    (A) : The water is absorbed by the root and move into the stem
    (R) : The movement of water from root hair to root xylem is called ascent of sap
128.    (A) : Vessels help in translocation of water
    (R) : Vessels are present in all gymnosperm
129.    (A): Root pressure develops in root hair cell
    (R) : Root pressure is maximum in dry season
130.    (A) : Water molecules show cohesion force
    (R) : Water molecules are bound by H bonds
131.    (A) : In plant, water column is able to move upto the top of plant
    (R) : Water column cannot break due to cohesion and adhesion force
132.    (A) : Plants mostly transpire through stomata
    (R)  : Lenticular transpiration is found only in the woody branches.
133.    (A) : Transpiration occurs only when stomata are open
    (B) : Transpiration occurs only through stomata
134.    (A) : Cuticular transpiration is more in xerophytes
    (R) : Stomata are usually closed at night in succulents
135.    (A) : Transpiration in succulents occurs at night time
    (R) : Stomata opens during night in succulents
136.    (A) : Film forming chemical should not be used for checking transpiration
    (R) : Film forming chemicals interrupt transpiration, photosynthesis and respiration
137.    (A) : Guttation occurs when water uptake is very high
    (R) : Guttation water comes from xylem ducts
138.    (A) : Abscisic acid causes stomata closure
    (R) : ABA increases availability of  inside the guard cell cytoplasm
139.    (A) : Plant growing at high altitude show low rate of transpiration than the plants at sea level
    (R) : Atmospheric pressure is inverselyproportional to altitude
140.    (A) :  Stomata are absent in older stems of dicots
    (R) : In older stems of dicots, epidermis is replaced by periderm
141.    (A) : In an open stoma, the guard cells are fully turgid.
    (R) : Guard cells of open stoma contain very low concentration of solution
142.    (A) : Lenticular transpiration is absent in Oryza.
    (R) : Secondary growth is absent in Oryza.
143.    (A) : Roots of xerophytic plants have higher osmotic pressure than that of hydrophytes.
    (R) :  Root system is well developed in xerophytes and root system is poorly developed in hydrophytes.
144.    (A) :  Water diffuses into guard cells during right time in succulent xerophutes.
    (R) : In succulent xerophytes the stomata are scotoactive
145.    (A) : Diffusion occurs due to random kinetic motion of molecules or ions.
    (R) : Diffusion occurs from the region of lower concentration to the higher concentration.
146.    (A) : High concentration of ABA is guard cells closes the stoma
    (R) : ABA allows influx of ions into guard cells.
147.    (A) : Proteins show more imbibition than cellulose
    (R) : Proteins are soluble in water but not cellulose
148.    (A) : In thisstle funnel experiment, egg membrane behaves as semi permeable membrane
    (R) : Egg membrane allows the diffusion of both water and sucrose.
149.    (A) : Plants absorb water by osmotic mechanism
    (R) : Water of soil soluton enters into root hair due to difference in water potential between soil and root hair.
150.    (A) : Water plays a key role in several reactions of respiration
    (R) : Water is used during respiratory electron transport.

01-10      b    c    b    a    c    c    c    b    d    b
11-20      c    d    c    c    c    c    a    a    c    b
21-30      b    a    b    b    b    b    d    d    d    c
31-40      c    b    c    b    a    c    c    d    d    c   
41-50      a    a    b    c    c    c    d    d    c    c
51-60      a    d    d    a    c    a    a    b    b    a
61-70      d    c    b    d    d    c    a    a    b    b
71-80      b    c    b    c    a    c    d    b    a    b
81-90      c    d    c    c    a    b    d    c    d    a
91-100     d    a    c    b    b    c    c    a    b    a
101-110    b    a    b    a    c    b    c    b    c    d   
111-120    c    d    b    a    a    c    a    d    c    a
121-130    b    c    c    b    d    c    c    d    d    a
131-140    b    b    d    d    a    d    b    a    a    a
141-150    a    a    b    a    c    c    c    c    a    c