WAEC Biology Past Questions & Answers - Page 129

641.

The process by which a drop of ink spreads uniformly in a beaker of water is called

A.

absorption

B.

osmosis

C.

plasmolysis

D.

diffusion

Correct answer is D

No explanation has been provided for this answer.

642.

The nucleus controls the activities of the cell because it

A.

synthesize hormones

B.

is like a brain in the cell

C.

uses DNA to synthesize enzymes which are used in cell metabolism

D.

sends out nervous impulses to ensure the functioning of the cytoplasm

Correct answer is C

No explanation has been provided for this answer.

643.

Which two structures are present in a palisade cell but not in a liver cell?

A.

cell wall and cytoplasm

B.

cell wall and chloroplast

C.

cell membrane and cytoplasm

D.

cell membrane and chloroplast

Correct answer is B

No explanation has been provided for this answer.

644.

Euglena can be classified as an animal because of the possession of

A.

nucleus

B.

cytoplasm

C.

cell wall

D.

pellicle

Correct answer is D

No explanation has been provided for this answer.

645.

Hydra is able to perform all the following functions except

A.

feeding

B.

movement

C.

photosynthesis

D.

egestion

Correct answer is C

No explanation has been provided for this answer.