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   


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