Question

(i) Suggest an explanation for the fact that the chemicals
produced by endocrine glands are usually in the form
of small molecules.
(ii) Write any three endocrine glands and chemical
produced by them.
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Answer 1

Answer:

pituitary gland : enzymes

pancreas : insulin

testies : sperm

Answer 2

Answer:

(i) because they are secreted in a very small amount but have a very significant effect of said hormone on the body of an organism. These small molecules combine with all body cells in order to produce a chain reaction.

(ii) Pancreas - Islets of Langerhans...

HOPE IT HELPS...