JAMB Biology Past Questions & Answers - Page 402

2,007.

Which of the following hormones is produced during fright or when agitated?

A.

Insulin

B.

Adrenalin

C.

Thyroxine

D.

Pituitrin

E.

Progesterone

Correct answer is B

No explanation has been provided for this answer.

2,008.

which part of the human brain is concerned with reflexes controlling the rate of heart beat and breathing?

A.

Medulla

B.

Cerebrum

C.

Cerebellum

D.

Pineal body

E.

Olfactory lobe

Correct answer is A

No explanation has been provided for this answer.

2,009.

If the bark and phloem tissue of a woody shoot are peeled off by ringing, the whole plant will die eventually die because?

A.

water does not reach the leaves

B.

water and salts remained below the ring portion

C.

there is a withdrawal of water from the root by soil

D.

manufactured food does not reach the roots

E.

the roots store too much water

Correct answer is D

No explanation has been provided for this answer.

2,010.

During excretion of urea there is also a corresponding re-absorption of water into the blood. This re-absorption takes place in the

A.

uriniferous tubules

B.

Bowman's capsule

C.

glomerulus

D.

malpighian capsule

E.

renal artery

Correct answer is A

The uriniferous tubules refer to each of the long, fine, convoluted tubules conveying urine from the glomeruli to the renal pelvis in the vertebrate kidney. Water and salts are reabsorbed into the blood along their length.