JAMB Biology Past Questions & Answers - Page 225

1,121.

When bacteria swim from cold to warm regions this is known as

A.

negative chemotaxis

B.

positive thermotaxis

C.

positive phototaxis

D.

negative phototaxis

Correct answer is B

No explanation has been provided for this answer.

1,122.

Excess water in plants is excreted as water vapour and droplets respectively through

A.

respiration and guttation

B.

transpiration and guttation

C.

photosynthesis and guttation

D.

guttation and condensation

Correct answer is B

No explanation has been provided for this answer.

1,123.

The urinary tubules of the kidney function through

A.

osmosis and diffusion

B.

active transport and osmosis

C.

ultrafiltration and selective reabsorption

D.

active transport and cytoplasmic streaming

Correct answer is C

No explanation has been provided for this answer.

1,124.

A test tube contains yeast in a glucose solution containing alkaline pyrogallol. The bubbles of carbon (IV) oxide produced indicates that the yeast cells are

A.

respiring in the absence of oxygen

B.

liberating oxygen on their own

C.

living and consuming oxygen

D.

being killed by the alcohol produced

Correct answer is A

No explanation has been provided for this answer.

1,125.

The mammalian lung is made air tight by the

A.

pleural cavity

B.

mucous membrane

C.

pleural membrane

D.

diaphragm

Correct answer is C

No explanation has been provided for this answer.