JAMB Biology Past Questions & Answers - Page 131

651.

Oestrogen is a hormone that is synthesized in the

A.

ovaries

B.

testes

C.

anterior pituitary

D.

adrenal cortex

Correct answer is A

No explanation has been provided for this answer.

652.

The absence of anti-diuretic hormone in humans results in

A.

decreasing dehydration

B.

drastic dehydration

C.

eliminating dehydration

D.

increasing dehydration

Correct answer is D

Too little ADH in your blood may be caused by compulsive water drinking. It can lead to severe dehydration as well.

653.

The sensory cell that responds to dim light is referred to as the

A.

cone

B.

lens

C.

rod

D.

iris

Correct answer is C

No explanation has been provided for this answer.

654.

The most important plant hormone is

A.

cytokinin

B.

abscisic acid

C.

auxin

D.

gibberellin

Correct answer is C

Auxins have a cardinal role in coordinating many growth and behavioral processes in the plant's life cycle and are essential for plant body development.

655.

The gland that is found just below the hypothalamus is the

A.

parathyroid

B.

adrenal

C.

pituitary

D.

thyroid

Correct answer is C

No explanation has been provided for this answer.