Year : 
1982
Title : 
Biology
Exam : 
JAMB Exam

Paper 1 | Objectives

31 - 40 of 50 Questions

# Question Ans
31.

Which of the following is NOT a function of mammalian blood?

A. Engulfing bacteria

B. Production of hormones

C. Transporting ureas

D. Distribution of heat

E. Transporting glucose

B

32.

The maize grain is regarded as a fruit and not a seed because

A. it has a coleorhiza

B. it has a coleoptile

C. of the relatively large endosperm

D. there is the remain of a style

E. of the relatively small scutellum

D

33.

Which of these parts of the mammalian ears is directly concerned with the sense of balance?

A. Cochlea

B. Eustachian tube

C. Ear-drum

D. Pinna

E. Semicircular canals

Detailed Solution

The inner ear of mammals consists of the cochlea, which is involved with the sense of hearing, and the vestibule and three semicircular canals, which are involved with the sense of balance.
34.

When freshly tapped palm wine was kept overnight it was found to be more alcoholic. This effect must have been due to

A. the addition of saccharin

B. the addition of sugar

C. the addition of whisky or local gin

D. some complex hydrolytic reaction

E. anaerobic respiration of an organism

E

35.

If a farmer left his land uncultivated for five years before returning to it, he must be practising

A. modern agriculture

B. strip cropping

C. contour ridging

D. crop rotation

E. the bush fallow system

E

36.

A pyramid of numbers can be defined as

A. the number of plants and animals in an ecosystem

B. an arrangement of organism according to their habitat

C. the numerical relationships of a food chain

D. the number of plants and animals in a population

E. the total number of species and general in a community

C

37.

In man, spermatozoa are never found in the?

A. testis

B. urethra

C. epididymis

D. prostrate glands

E. vas deferens

Detailed Solution

- The prostate gland is located just below the bladder in men and surrounds the top portion of the tube that drains urine from the bladder (urethra). The prostate's primary function is to produce the fluid that nourishes and transports sperm (seminal fluid).
38.

Which of the following statements is TRUE of inhalation of air by man?

A. The ribs are not raised

B. Diaphragm is raised

C. Intercostal muscles relax

D. Pressure of the thoracic cavity increase

E. Size of thoracic cavity increase

E

39.

If the gall bladder of a man is removed by surgery, which of the following processes will be most seriously affected?

A. Digestion of fats and oil

B. Formation of urea

C. Digestion of starch

D. Conversion of protein

E. Storage and release of the urine

A

40.

Flatworms and roundworms are said to be invertebrates because

A. they are small animals

B. they can live inside the vertebrates

C. some of them are unicellular

D. they have no backbones

E. they are parasitic

D

31.

Which of the following is NOT a function of mammalian blood?

A. Engulfing bacteria

B. Production of hormones

C. Transporting ureas

D. Distribution of heat

E. Transporting glucose

B

32.

The maize grain is regarded as a fruit and not a seed because

A. it has a coleorhiza

B. it has a coleoptile

C. of the relatively large endosperm

D. there is the remain of a style

E. of the relatively small scutellum

D

33.

Which of these parts of the mammalian ears is directly concerned with the sense of balance?

A. Cochlea

B. Eustachian tube

C. Ear-drum

D. Pinna

E. Semicircular canals

Detailed Solution

The inner ear of mammals consists of the cochlea, which is involved with the sense of hearing, and the vestibule and three semicircular canals, which are involved with the sense of balance.
34.

When freshly tapped palm wine was kept overnight it was found to be more alcoholic. This effect must have been due to

A. the addition of saccharin

B. the addition of sugar

C. the addition of whisky or local gin

D. some complex hydrolytic reaction

E. anaerobic respiration of an organism

E

35.

If a farmer left his land uncultivated for five years before returning to it, he must be practising

A. modern agriculture

B. strip cropping

C. contour ridging

D. crop rotation

E. the bush fallow system

E

36.

A pyramid of numbers can be defined as

A. the number of plants and animals in an ecosystem

B. an arrangement of organism according to their habitat

C. the numerical relationships of a food chain

D. the number of plants and animals in a population

E. the total number of species and general in a community

C

37.

In man, spermatozoa are never found in the?

A. testis

B. urethra

C. epididymis

D. prostrate glands

E. vas deferens

Detailed Solution

- The prostate gland is located just below the bladder in men and surrounds the top portion of the tube that drains urine from the bladder (urethra). The prostate's primary function is to produce the fluid that nourishes and transports sperm (seminal fluid).
38.

Which of the following statements is TRUE of inhalation of air by man?

A. The ribs are not raised

B. Diaphragm is raised

C. Intercostal muscles relax

D. Pressure of the thoracic cavity increase

E. Size of thoracic cavity increase

E

39.

If the gall bladder of a man is removed by surgery, which of the following processes will be most seriously affected?

A. Digestion of fats and oil

B. Formation of urea

C. Digestion of starch

D. Conversion of protein

E. Storage and release of the urine

A

40.

Flatworms and roundworms are said to be invertebrates because

A. they are small animals

B. they can live inside the vertebrates

C. some of them are unicellular

D. they have no backbones

E. they are parasitic

D