JAMB Biology Past Questions & Answers - Page 285

1,421.

In million's test, when the reagent is added to a protein food item, a white precipitate is produced which turns

A.

blue on heating

B.

yellow on heating

C.

green on heating

D.

red on heating

Correct answer is D

No explanation has been provided for this answer.

1,422.

In a water culture experiment, a plant showed poor growth and yellowing of the leaves. These may be due to deficiency in

A.

copper

B.

iron

C.

magnesium

D.

calcium

Correct answer is B

No explanation has been provided for this answer.

1,423.

The manufacture of carbohydrates by plants takes place only in

A.

the leaves

B.

the green stems

C.

chlorophyllous parts

D.

flowering plants

Correct answer is C

No explanation has been provided for this answer.

1,424.

Which of the following structures is capable of producing more tissues in the stem of a herbaceous flowering plant?

A.

Epidermis

B.

Pericycle

C.

Xylem

D.

Cambium

Correct answer is D

No explanation has been provided for this answer.

1,425.

A distinguished feature of mammals is the possession of

A.

skin

B.

scale

C.

nail

D.

hair

Correct answer is D

No explanation has been provided for this answer.