WAEC Biology Past Questions & Answers - Page 101

501.

The aspects of growth in living organisms include all the following processes except

A.

increase in dry weight

B.

reversible increase in size

C.

irreversible increase in length

D.

increase in number of cells

Correct answer is B

No explanation has been provided for this answer.

502.

Which of the following processes does not contribute towards growth?

A.

Cell division

B.

Cell enlargement

C.

Cell differentiation

D.

Cell plasmolysis

Correct answer is D

No explanation has been provided for this answer.

503.

Which of the following environmental conditions is ideal for plant cells to remain turgid?

A.

Hot, dry weather

B.

Windy weather

C.

Cold, dry weather

D.

Cool, humid weather

Correct answer is D

No explanation has been provided for this answer.

504.

During the process of osmosis, a semi-permeable membrane allows

A.

only solute molecules to pass through it

B.

both solute and solvent molecules to pass through it

C.

only solvent molecules to pass through it

D.

only gaseous molecules to pass through it

Correct answer is C

No explanation has been provided for this answer.

505.

The physical process which occurs when a red blood cell is placed in distilled water causing it to burst and break down is known as

A.

crenation

B.

plasmolysis

C.

turgidity

D.

haemolysis

Correct answer is D

No explanation has been provided for this answer.