Free Morphology Of Flowering Plants (Daily Quiz: 13) NEET Biology Questions & Answers with Detailed Explanation & Full Review

Free Morphology Of Flowering Plants (Daily Quiz: 13) Time:

Question-1

Select from the following the total number of plant showing tricarpellary gynoceium.
Gram, Arhar, Moong, Sesbania, Lupin, Muliathi, Soyabean, Tomato, Brinjal, Belladona, Petunia, Tobacco, Tulip, Aloe, Colchicine, Asparagus, Chilli, Ground nuts, Indigofera, Sunhemp

(a)

(b)

(c)

(d)


Question-2

Assertion :
In fabaceae family monocarpellary, unilocular ovary is present.
Reason :
In fabaceae, placentation is parietal.

(a)

(b)

(c)

(d)

Explanation:

Answer: (c)

In fabaceae ovary is present. Placentation is marginal with many ovules.


Question-3

Which one of the following statements is correct?

(a)

(b)

(c)

(d)

Explanation:

Answer: (b)

Grass seeds are endospermic. Mango is a seeded fruit. A sterile pistil is called pistillode and a sterile stamen is called staminode. Maize grains consist of fruit wall, seed coat, endosperm and embryo. The endosperm occupies most of the grains interior and consists of two parts, horny aleurone layer and mainly storage layers. The aleurone layer lies immediately below the grain covering and is 1¬3 cell thick. Aleurone cells are thick walled with cytoplasm filled with aleurone grains which produce enzymes during seed germination to mobilise stored nutrients.


Question-4

Bicarpellary gynoecium and oblique ovary occurs in

(a)

(b)

(c)

(d)

Explanation:

Answer: (d)

Brinjal or Solanum melongena belongs to Family Solanaceae. The fruits are rich in iodine. They are used in the form of vegetable. Gynoecium is bicarpellary, syncarpous, forming a superior bilocular ovary. Each locule has many ovules on axile placentation. Members of Solanaceae are characterised by the presence of an obliquely placed septum in the ovary and highly swollen placentae. The oblique septum is probably due to shifting in the position of the ovary.


Question-5

Select the incorrect matching:
A. ActinomorphicWhen flower can be divided into two equal radial halves in any radial plane passing through the centre.
B. Zygomorphic When flower can be divided into two similar halves only in one particular vertical plane.
C. Asymmetric When flower cannot be divided into two similar halves by any vertical plane passing through centre.
D. All are correct 

(a)

(b)

(c)

(d)


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