JAMB Biology Past Questions & Answers - Page 169

841.

The structure labelled V is the

A.

mitochondrion

B.

ribosome

C.

nucleus

D.

centriole

E.

nucleolus

Correct answer is B

No explanation has been provided for this answer.

842.

The lowest level of organization in living organisms is

A.

organ

B.

cell

C.

system

D.

tissue

Correct answer is B

No explanation has been provided for this answer.

843.

The gland which produces trypsin, amylase and lipase is labeled? 

A.

6

B.

4

C.

2

D.

1

Correct answer is B

The pancreas ( the organ labeled 4)  contains exocrine glands that produce enzymes important to digestion. These enzymes include trypsin and chymotrypsin to digest proteins; amylase for the digestion of carbohydrates; and lipase to break down fats. 

844.

Which structure is the glomerulus?

A.

5

B.

3

C.

2

D.

1

Correct answer is B

No explanation has been provided for this answer.

845.

Which ecological factor exerts the greatest influence on the structure of the profiles?

A.

Topographic

B.

Edaphic

C.

Biotic

D.

Climatic

Correct answer is D

No explanation has been provided for this answer.