JAMB Biology Past Questions & Answers - Page 153

761.

Use the following information to answer the question below.

I. Test tube containing cane sugar and water .
II. Test tube containing cane sugar and diluted acid.
III. Test tube containing cane sugar and its degrading enzyme .

The enzyme involved in the hydrolysis is

A.

rennin

B.

erepsin

C.

sucrase

D.

maltase

Correct answer is C

No explanation has been provided for this answer.

762.

Use the following information to answer the question below.

I. Test tube containing cane sugar and water .
II. Test tube containing cane sugar and diluted acid.
III. Test tube containing cane sugar and its degrading enzyme .

In which of the test tubes will glucose be detected after complete hydrolysis?

A.

l and ll only

B.

ll and lll only

C.

l only

D.

l, ll, and lll

Correct answer is B

No explanation has been provided for this answer.

763.

I. Parasitism → Sundew.
II. Autotrophism →Amoeba.
III. Saprophytism → Alga.
IV Heterotrophism → Agama.

Which of the above modes of nutrition is correctly matched with the organism that exhibits it?

A.

ll

B.

lll

C.

lV

D.

l

Correct answer is C

Agamas are primarily insectivores. They're active hunters that chase their prey, snapping it up in their jaws or grabbing it with their sticky tongues. 

764.

In mammals, the exchange of nutrients and metabolic products occurs in the

A.

lungs

B.

oesophagus

C.

trachea

D.

lymph

Correct answer is D

No explanation has been provided for this answer.

765.

The ability of living organism to detect and respond to changes in the environment is referred to as

A.

locomotion

B.

irritability

C.

growth

D.

taxis

Correct answer is B

No explanation has been provided for this answer.