JAMB Biology Past Questions & Answers - Page 422

2,106.

the function of lenticels is

A.

to remove excess water in plant

B.

to absorb water from the atmosphere

C.

for gaseous exchange

D.

to absorb light

E.

to store food

Correct answer is C

A lenticel is one of many raised pores in the stem of a woody plant that allows gas exchange between the atmosphere and the internal tissues.

2,107.

when protein are broken down they provide

A.

oxygen

B.

carbonhydrate

C.

energy

D.

amino-acid

E.

carbon dioxide

Correct answer is D

The end-product of the breakdown of protein is amino-acids and other simple products.

2,108.

which of these type of skeleton is most appropriate for a cockroach?

A.

Hydrostatic skeleton

B.

Exoskeleton

C.

Endoskeleton

D.

Cartilaginous skeleton

E.

Bony skeleton

Correct answer is B

Like most other insects, cockroaches have an exoskeleton, meaning their skeleton is located on the outside of their bodies.

2,109.

A trawler on a fishing trip caught a type of animal with hairs on its body. This animal could have been

A.

An amphibian

B.

a reptile

C.

a shark

D.

a mammal

E.

a seagull

Correct answer is D

We have aquatic mammals. These are mammals which depend on water either fully or partly. They have the qualities of mammals

2,110.

Euglena may be classified as a plant because is

A.

has chloroplast

B.

has a gullet

C.

lives in a pond

D.

possesses a flagellum

E.

has pellicle

Correct answer is A

Most euglena have chloroplasts, which is a basic characteristics of plants.