JAMB Biology Past Questions & Answers - Page 128

636.

If an isolated living cell is left in distilled water for two hours, it is likely to

A.

lose some of its water to the surrounding water

B.

lose all of its water to the surrounding water

C.

reproduce by binary fission

D.

become more turgid

E.

die due to excess water

Correct answer is D

No explanation has been provided for this answer.

637.

A germinating seed requires oxygen which is essential for

A.

Converting carbohydrate into glucose

B.

Transporting energy from one part of the plant to another

C.

Producing energy by oxidizing essential carbohydrate

D.

protein hydrolysis

E.

The formation of water molecules within the germinating seed

Correct answer is C

No explanation has been provided for this answer.

638.

Which of the following statements about the mammalian kidney is false?

A.

The glomerulus is formed by a branch of the renal artery

B.

The glomerulus is a part of the uriniferous tubules

C.

The bowman's capsule is in the cortex of the kidney

D.

The uriniferous tubules are richly supplied with blood vessels

E.

The glomerulus is lodged in the bowman's capsule

Correct answer is B

No explanation has been provided for this answer.

639.

The arrangements below are steps in protein digestion. Which is the correct sequence?
A. polypetides B. protein C. amino-acids D. peptones

A.

a-b-c-d

B.

c-d-a-b

C.

b-d-a-c

D.

a-d-b-c

E.

b-a-c-d

Correct answer is C

No explanation has been provided for this answer.

640.

The behavioural adaptation in social insects could best be described as

A.

symbiosis

B.

saprophytism

C.

parasitism

D.

commensalism

Correct answer is A

No explanation has been provided for this answer.