WAEC Past Questions and Answers - Page 3401

17,001.

The diagram below is an illustration of the longitudinal section of a plant organ. Study it and answer the question below.

The plant is a

A.

stem tuber

B.

bulb

C.

stolon

D.

runner

Correct answer is B

No explanation has been provided for this answer.

17,002.

The diagram below is an illustration of the longitudinal section of a plant organ. Study to answer the question below.

Food is stored in the part labeled

A.

I

B.

II

C.

III

D.

IV

Correct answer is B

  • An onion bulb is a type of plant storage organ.
  •  The bulbs are composed of shortened, compressed, underground stems surrounded by fleshy modified scale (leaves) that envelop a central bud at the tip of the stem.

17,003.

The network of double membranes that conveys materials through the cytoplasm is the 

A.

plasma membrane

B.

nuclear membrane

C.

mitochondrion

D.

endoplasmic reticulum

Correct answer is D

No explanation has been provided for this answer.

17,004.

The organism with spiral chloroplasts and nucleus suspended by cytoplasmic strands is

A.

Volvox

B.

Spirogyra

C.

Paramecium

D.

Euglena

Correct answer is B

Spirogyra is a filamentous charophyte green alga of the order Zygnematales, named for the helical or spiral arrangement of the chloroplasts that is characteristic of the genus.

17,005.

Use the following Classes of Arthropoda to answer the question below

I. Crustacea II. Insecta III. Arachinda IV. Chilopoda

Which of the classes is characterised by the possession of two pairs of antennae?

A.

I

B.

II

C.

III

D.

IV

Correct answer is A

No explanation has been provided for this answer.