Tuesday, March 13, 2012

LEAF AND INFLORESCENCE MCQ ASSIGNMENT

1 Choose the correct statement




Ans:Inflorescence with involucel also has involucre
2 The common features among the inflorescences of Crotalaria, Cassia, Allium is/are
I. All have pedicellate flowers
II. all have un-branched peduncle

III. Aropetal arrangement of flowers 
IV. All have pedicels with similar length





Ans: I and II
3 The total number of leaflets seen in 12 leaves of Aegle marmelose is equivalent to the leaflets of how many leaves of Marselia




Ans:9
4 Stipels are present in the leaves of




Ans:Dolichos
5 Digestive glands of Nepenthes secrete digestive fluid whose pH is around




Ans:2
6 Succulent lamina and epiphyllous buds are seen in




Ans:Bryophyllum
7 All rachii of leaf have leaflets in




Ans:Moringa
8 Arrange the following plants with gradual increase in number of leaves at every node
I. Calotropis
II. Casuarina
III. Carica
IV. Nerium





Ans:II, IV, I, III
9 Plant X has simple raceme inflorescence but lacks collenchyma. Plant Y has Umbel inflorescence without Involucel but has reticulate venation. X and Y are respecively




Ans:Asparagus, Smilax
10 [A]: Acalypha shows leaf mosaic
[R]: its leaves are sessile





Ans:A is true but R is false
11 Leaf of Dolichos is best described as




Ans:Imparipinnate
12 Match the following
Leaf nature                     Plant
A)Simple leaf modified into a Spine I)Parkinsonia
B)Compound leaf modified into a spine II)Asparagus
C)Simple leaf with 2 spines          III)Acacia Arabica
D)Compound leaf with 2 spines          IV)Citrus
                             V)Zizyphus





Ans:A-II, B-IV, C-V, D-III
13 Marselia is a/an




Ans: Seedless tracheophyte with quadrifoliate compound leaf
14 Inflorescence of a plant stores food materials. The inflorescence is a




Ans:Compound corymb
15 Orhostichy refers to




Ans:Number of rows of leaves on a branch
16 The total number of leaflets seen in 12 leaves of Aegle marmelose is equivalent to the leaflets of how many leaves of Marselia




Ans:9
17 Stipels are present in the leaves of




Ans:Dolichos
18 Digestive glands of Nepenthes secrete digestive fluid whose pH is around




Ans:2
19 Succulent lamina and epiphyllous buds are seen in




Ans:Bryophyllum
20 All rachii of leaf have leaflets in




Ans:Moringa
21 How many simple cymes can be formed from a dichasial cyme having 7 generations of floral braches




Ans:85
22 Flowers are always developed on only one side of the axis in




Ans:Helicoid cyme
23 The arrangement of male flowers in the inflorescence of Poinsettia resembles the arrangement of flowers of the inflorescence of




Ans:Heliotropium
24 Arrangement of flowers is Neither acropetal nor centripetal in




Ans:Ficus
25 Dimorphic bracts are seen in the inflorescence of




Ans:Vernonia
26 Match the following
Inflorescence Nature            Plant
A)Shows the inflorescence features        I)Poinsettia
of Solanum and Ipomoea 
B)Inflorescence with Unisexual            II)Tridax
pedicellate flowers 
C)Inflorescence with number of 
flowers is equal to the number of          III)Hamelia
leaflets of Argemone leaf 
D)Inflorescence with both unisexual       IV)Leonotix   
and bisexual flowers 
                                          V)Jasminum





Ans:A-IV, B-I, C-V, D-II
27 Peduncle of the plants of the following family can be called as Receptacle




Ans:Asteraceae
28 Choose the set in which the components are morphologically same




Ans:Lemma, Glume, Spathe
29 The following inflorescence has either male or female flowers.




Ans:Catkin
30 Identify the set of inflorescences that show gradual shortening of their peducle




Ans:Simple Raceme, Simple Corymb, Simple Umbel
31 Inflorescence whose flowers always form simple fruits is




Ans: Anthodium
32 The number of flowers having direct contact with the peduncle and its every branch of cymose inflorescence is in the ratio of




Ans:1:1
33 Axillary solitary cymes are seen in
I. Hibiscus
II. Gloriosa
III. Datura
IV. Abelmoschous





Ans:I, II, IV
34 [A]: The inflorescence of Hibiscus, though does not appear as real inflorescence it has to be called as inflorescence.
[R]: The only flower of it is borne on the peduncle





Ans:Both A and R are true and R is the correct explanation of A
35 A given dichasial cyme has 3 generations of floral branches. In how many combinations, all the intact flowers of the inflorescence can form simple cymes.




Ans:31
36 If a dichasial cyme has 511 flowers, the number of generations of flowers present in the inflorescence is




Ans:9
37 How many inflorescences of Bougainvilleae are required to form a dichasial cyme with 7 generations of floral branches




Ans:85
38 In a cymose inflorescence the the first bract belongs to 2nd flower and 5th bract belongs to 5th generation of floral branch. The inflorescence must be




Ans:Either Helicoid cyme or Scorpioid cyme
39 Study the following table and choose the correct combination
Inflorescence of Production of Flowers Growth of peduncle 
  the Plant                                 and its branches  
I)Gossypium      Limited           Limited
II)Jasminum      Limited           Unlimited
III)Nerium      Unllmited           Limited
IV)Heliotropium      Limited           Unlimited





Ans:I and III
40 Artabotrys has




Ans:Terminal Solitary cyme
41 [A]: In a given monochasial cyme the youngest flower is at the distal end and oldest at the proximal end of inflorescence.
[R]: Among the cymose inflorescences, only in Monochasial cymes the flowers are arranged in acropetal manner





Ans:A is true but R is false
42 Solitary cyme is more common in the family




Ans:Malvaceae

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