Question

With regard to germination in bean seed, answer the following questions:
(a) State the function of the `Micropyle'.
(b) Name the part of the seed that grows into the seedling.
(c) Name the part of the seed that provides nutrition for the growing seedling.
(d) Draw a neat labelled diagram of a mature bean seed.

Answer 1

(a) The 'micropyle' serves two important functions:

• Allows absorption of water and makes it available to the embryo for germination.
• Enables diffusion of respiratory gases for the growing embryo.

(b) The embryo of the seed grows into the seedling.
(c) The cotyledons of the seed provide nutrition for the growing seedling or the embryo.

(d) Structure of embryo.