JAMB Biology Past Questions & Answers - Page 118

586.

Use the diagram below to answer this question.

The movement of materials in the xylem and phloem tissues of the plant are represented by the arrows labeled

A.

lV and III respectively

B.

ll and l respectively

C.

l and ll respectively

D.

l and lll respectively

Correct answer is A

The xylem is a plant vascular tissue that conveys water and dissolved minerals from the roots to the rest of the plant and also provides physical support.

The phloem is a living tissue in vascular plants that conducts the soluble organic compounds synthesized during photosynthesis downwards from the leaves.

587.

Use the diagram below to answer this question.

Which of the following is a true feature of plantation ll?

A.

it has the highest number of trees of about 2m high

B.

it has the highest number of trees

C.

it has the highest number of tall trees

D.

the height of all its trees range between 2m and 6m

Correct answer is A

No explanation has been provided for this answer.

588.

Use the diagram below to answer this question.

In which plantation are all the trees between the height of 2-4m?

A.

lll

B.

ll

C.

l

D.

lV

Correct answer is A

No explanation has been provided for this answer.

589.

Use the diagram below to answer this question.

The experimental set-up above is used to demonstrate the process of

A.

diffusion

B.

photosynthesis

C.

fermentation

D.

plasmolysis

Correct answer is C

No explanation has been provided for this answer.

590.

Use the diagram below to answer this question.

The gas evolved in the process is

A.

carbon (IV) oxide

B.

nitrogen

C.

oxygen

D.

carbon (II) oxide

Correct answer is A

No explanation has been provided for this answer.