FORM AND FUNCTIONS - Jamb Biology Past Questions and Answers

Question 586:

• JAMB 1998

The nucleus is considered the central organelle of a cell because it

A. Contains the genetic material
B. Contains the nuclear sap
C. Is bounded by the nuclear membrane
D. Is located at the center of the cell

Question 587:

• JAMB 1998

In snails, the hard calcareous shells are secreted by the

A. Radula
B. Ctenidium
C. Pneumostome
D. Mantle

Question 588:

• JAMB 1998

The structure labelled I is formed as a result of the fusion of

A. Two pairs of nuclei
B. Several pairs of nuclei
C. A pair of nuclei
D. Two pairs of nucleoli

Question 589:

• JAMB 1998

The special name of the part labelled II is

A. Gametangium
B. Hypha
C. Suspensor
D. Zygospore

Question 590:

• JAMB 1998

The ability of the cockroach to live in cracks and crevices is enhanced by the possession of

A. Wings and segmented body
B. Compound eyes
C. Claws on the leg
D. Dorso-ventrally flattened body