WAEC Past Questions and Answers - Page 3329

16,641.

The region of a plant stem in which cells divide to increase its diameter is

A.

cambium

B.

phloem

C.

xylem

D.

collenchyma

View answer & explanation

Correct answer is A

No explanation has been provided for this answer.

16,642.

The process that brings about the shrinking of a spirogyra cell when placed in a strong solution is ?

A.

osmosis

B.

autolysis

C.

plasmolysis

D.

diffusion

View answer & explanation

Correct answer is C

No explanation has been provided for this answer.

16,643.

The organelles in cells which are also referred to as suicidal bags are the 

A.

mitochondria

B.

lysosomes

C.

ribosomes

D.

nuclei

View answer & explanation

Correct answer is B

No explanation has been provided for this answer.

16,644.

Diagrams X and Y below are illustrations of transverse sections of a part of plants. Study them and answer this question.

The part labelled Il is the?

A.

Pith

B.

xylem

C.

Phloem

D.

endodermis

View answer & explanation

Correct answer is A

No explanation has been provided for this answer.

16,645.

Diagrams X and Y below are illustrations of transverse sections of a part of plants. Study them and answer this question.

The part responsible for conducting water and dissolved mineral salts from the soil to the leaves is labelled

A.

I

B.

II

C.

III

D.

IV

View answer & explanation

Correct answer is D

No explanation has been provided for this answer.


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