Question

Hormones differ from enzymes in being:
A) Found in plants only
B) Found in animals only
C) Used up in metabolism
D) Not used in metabolism

Answer 1

The term hormones means “chemical substances” which are members of a class of signalling molecules.Hormone have chemical structures, mainly of three types – eicosanoids, steroids, amino acid.

Complete step by step answer:
OPTION A) FOUND IN PLANTS ONLY- Hormones are chemicals or signalling molecules secreted from endocrine glands in the blood from where they are carried to target organs and changes occur in their functioning and regulation.
OPTION B) FOUND IN ANIMALS ONLY- Hormones bind to specific proteins known as hormone receptors to produce their effects. These receptors are present in the target tissues only which leads to biochemical changes in the target tissue.
OPTION C) USED UP IN METABOLISM- Enzymes are catalysts that speed up the rate of reaction without getting altered. Enzymes bind to substrate thus enzymes substrate complex is formed.
OPTION D) NOT USED IN METABOLISM- As the enzymes and hormones differ during the metabolic process the substrates formed are very complex therefore leads to the changes in the targeted tissues.

Hence the correct answer is option(C)

Note: Hormones and enzymes differ is used up in the metabolic process for the formation of various changes in the targeted tissues and this is done due to the formation of strong and complex substrates.