The ______ (cotyledon/endosperm), also called seed leaves, nourish the developing embryo during germination.

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Solution

Cotyledons:
These are also called seed leaves.
They surround and nourish the embryo during germination.
Seeds with one cotyledon are called monocot seeds e.g., maize and rice.
Seeds with two cotyledons are called dicot e.g., pea and bean.
Final answer: The cotyledons also called seed leaves, nourish the developing embryo during germination.

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The part of a seed which grows and develops into root on germination is:
(a) cotyledon
(b) plumule
(c) follicle
(d) radicle

The mature seeds of plants such as gram and peas possess no endosperm,because

(a) these plants are not angiosperms

(b) there is no double fertilisation in them

(d) endosperm gets used by the developing embryo during seed development

Name the following
(a) A monocotyledonous endospermic seed.
(b) A chemical used in experiments, which absorbs oxygen.
(c) Part of the plumule above the embryonic axis of the seed.
(d) A plant which shows viviparous germination.
(e) The layer of endosperm of maize, rich in protein.
(f) A seed with folded plumule leaves.

How do you distinguish between hypogeal germination and epigeal germination? What is the role of cotyledon(s) and the endosperm in the germination of seeds?

During seed germination, an embryo develops into a ___.

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