Free Morphology Of Flowering Plants (Weekly Quiz: 2) NEET Biology Questions & Answers with Detailed Explanation & Full Review

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Free Morphology Of Flowering Plants (Weekly Quiz: 2) Time:

Question-1

Which of the following represents the edible part of the fruit of litchi?

(a)

(b)

(c)

(d)

Question-2

The stamens are united into one bunch (Monoadelphous) condition is found in

(a)

(b)

(c)

(d)

Question-3

Dry indehiscent single¬seeded fruit formed from bicarpellary syncarpous inferior ovary is

(a)

(b)

(c)

(d)

Explanation:

Answer: (d)

Cypsella is a dry, one chambered, one seeded fruit developing from an inferior, bicarpellary ovary,e.g., sunflower, marigold, cosmos, etc. Caryopsis or grain is a small, dry one seeded fruit developing from superior monocarpellary ovary. Pericarp fused with the seed coat, e.g., rice, wheat, maize, etc. Cremocarp is a bilocular, two seeded fruit developing from an inferior bicarpellary ovary. It is characteristic fruit of umbelliferae, e.g., Coriander, Cuminum, etc. Berry or bacca develops from mono or multicarpellary superior or inferior syncarpous ovary with axile or parietal placentation, e.g., tomato, banana, brinjal, guava, grapes etc.

Question-4

An example of a seed with endosperm, perisperm, and caruncle is

(a)

(b)

(c)

(d)

Explanation:

Answer: (b)

In castor seed testa and tegmen are united together. Seed coat is tough and bright due to scleroprotein. Over narrower end a brownish pad is found which is called caruncle. Caruncle is carbohydrate in nature. This protects micropyle and develops as an integumental outgrowth after fertilization.Below seed coat a very thin membrane is found over kernel and called perisperm (the persistant nucellus).Below perisperm there is a large, white, swollen and oily mass called endsoperm.

Question-5

Plants which produce characteristic pneumatophores and show vivipary belong to :

(a)

(b)

(c)

(d)

Explanation:

Answer: (b)

Halophytes growing in saline soils show vivipary for seed germination and have pneumatophores for gaseous exchange.

Question-6

Keel is characteristic of the flowers of

(a)

(b)

(c)

(d)

Question-7

Axile placentation is present in

(a)

(b)

(c)

(d)

Explanation:

Answer: (d)

Axile placentation occurs in syncarpous pistils. The ovary is partitioned into two or more chambers. Placentae occur in the central region where the septa meet so that an axile column bearing ovules is formed e.g., shoe flower (pentalocular), lemon (multilocular), etc.

Question-8

New banana plants develop from

(a)

(b)

(c)

(d)

Explanation:

Answer: (a)

Suckers are the sub¬aerial modification of stem. They grow obliquely upward from the main stem producing roots from the underground nodes. The sucker like structures in banana are also called sword suckers, which give rise to new leafy trunk.

Question-9

Tomato, Brinjal and potato belongs to the family called

(a)

(b)

(c)

(d)

Question-10

Which is not a stem modification ?

(a)

(b)

(c)

(d)

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