Waec Biology Past Questions and Answers

Question 386:

• WAEC 1995

In complex food relationships in a community, the primary, secondary and tertiary consumers are referred
to as

A. Symbionts
B. Omnivores
C. Heterotrophs
D. Autotrophs
E. Carnivores

Question 387:

• WAEC 1995

The cell membrane of a cell is said to be semi-permeable because

A. It allows only large molecular substances to pass through it into the cell
B. It is actively involved in energy production in the cell
C. It actively allows all substances to pass through it by diffusion
D. It is actively selective in allowing substances pass through it
E. Fatty acids are only the building blocks of the membrane

Question 388:

• WAEC 1995

The function of the part labelled I is

A. Controlling water loss
B. Trapping solar energy
C. Absorbing water
D. Storing sugar
E. Transporting sugar

Question 389:

• WAEC 1995

The part labelled ll is the

A. Stoma
B. Palisade cell
C. Spongy cell
D. Guard cell
E. Epidermal cell.

Question 390:

• WAEC 1995

The structure that will be stained blue-black by iodine is labelled

A. I
B. II
C. III
D. IV
E. V