Question

8. State one function of the following:
(a) Radicle ........
(b) Cotyledons .....
(c) Endosperm .....
(d) Micropyle
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Answer 1

Answer:

A radical function is any function that is defined in a root. This function also contains a square root, cubed roots, or any of the nth root. General form of radical function: where f(x) is a function, n is a index and the symbol is denoted by radical.

In non-endospermic seeds the cotyledons are the food store. The function of the cotyledon/scutellum in monocots is to a) synthesise GA and b) absorb the digested products of the endosperm and pass them on (via vascular tissue) to the embryos

The endosperm plays an important role in supporting embryonic growth by supplying nutrients, protecting the embryo and controlling embryo growth by acting as a mechanical barrier during seed development and germination

When soaked in water, the seeds absorb water mainly through the micropyle and make it available to the embryo for germination.

Answer 2

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Explanation:

1.Radicle — form the roots

2.Cotyledons — On removing th& testa and the tegmen from a soaked bean seed, you will find that the seed is made up of two fleshy seed leaves called the cotyledolm. They contain stored food material which is used by the seedlling for growth.

3.Endosperm—ovary forms the fruit.

4.Micropyle —Above the hilum is a small pore called micropyle (micro = small, pyle = passage). The micropyle absorbs and allows as much water as is required for germination.