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Test: The Seed (NCERT) - NEET MCQ

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5 Questions MCQ Test Biology Class 11 - Test: The Seed (NCERT)

Test: The Seed (NCERT) for NEET 2024 is part of Biology Class 11 preparation. The Test: The Seed (NCERT) questions and answers have been prepared according to the NEET exam syllabus.The Test: The Seed (NCERT) MCQs are made for NEET 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: The Seed (NCERT) below.
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Test: The Seed (NCERT) - Question 1

Monocotyledonous seeds possess a single cotyledon which is represented by

Detailed Solution for Test: The Seed (NCERT) - Question 1

The single cotyledon of monocotyledonous seed (e.g., maize grain) is called scutellum. It occupies the major portion of the embryo regions of grains.

Test: The Seed (NCERT) - Question 2

Coleorhiza and coleoptile are the protective sheaths covening _____ and _____ respectively.

Detailed Solution for Test: The Seed (NCERT) - Question 2

The embryonal axis is differentiated into radicle and plumule. In monocot seeds, the radicle is protected by a sheath called coleorhiza and the plumule is protected by coleoptile whereas in dicot seeds, the radicle and plumule are not protected by such sheaths.

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Test: The Seed (NCERT) - Question 3

Endospermic seeds are found in

Detailed Solution for Test: The Seed (NCERT) - Question 3

Food storing tissue of a seed is endosperm. In flowering plants it is produced as a result of double fertilization. In most monocots and some dicot seeds, the food reserve remains in the endosperm. They are called endospermic or albuminous seeds, example: cereals, castor bean, coconuts, rubber. In majority of dicot seeds (example: pea, gram, bean, mustard, groundnut) and some monocot seeds (example: orchids, Sagittaria), the endosperm is consumed during seed development and the food is stored in cotyledons and other regions. They are called non-endospermic or exalbuminous seeds.

Test: The Seed (NCERT) - Question 4

Given figure represents longitudinal section of a monocotyledonous embryo. Identify the parts labelled as A, B, C and D from the list (i-vii) and select the CORRECT option.
(i) Scutellum
(ii) Coleoptile
(iii) endosperm
(iv) Aleurone layer
(v) Radicle
(vi) Root cap
(vii) Coleorhiza

Detailed Solution for Test: The Seed (NCERT) - Question 4

In the section of Maize seed we observe:
(A) The nutritive layer - the endosperm
(B) The protective covering of the plumule- the coleoptile
(C) The root forming structure  -the radicle, protected by coleorhiza
(D) The nutritive protein layer- the aleurone

Test: The Seed (NCERT) - Question 5

Identify A, B, C and D in the given figure showing L.S. of a monocot seed and select the correct option.

Detailed Solution for Test: The Seed (NCERT) - Question 5

Monocotyledonous seeds are with a single cotyledon. The fruit wall (pericarp) and the seed coat (testa) are inseparably fused. Below the grain covering are present two structures, endosperm and embryo. The embryo in the pointed part of the grain, mostly towards the upper side. It consists of an embryo axis containing a radicle plumule and a single lateral cotyledon. The radicle for sheaths, inner root cap and outer coleorhiza. The (or future shoot) goes towards the reader side of the given at the other end of embryo axis. It bears a few rudimentary leaves and a conical protective sheath called coleoptile. The single cotyledon of monocotyledonous seed is called scutellum. It occupies the major embryo regions of grain. The endosperm occupies of the interior of the grain on the broader sides.

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