Year : 
1981
Title : 
Biology
Exam : 
JAMB Exam

Paper 1 | Objectives

11 - 20 of 49 Questions

# Question Ans
11.

Which of the following is NOT a function of the liver?

A. Regulation of blood sugar

B. Storage of iron

C. Formation of bile

D. Breakdown of excess amino acids

E. Excretion of urea from the blood

E
12.

Spirogyra reproduces vegetatively by

A. spore production

B. fragmentation

C. multiple fission

D. budding

E. binary fission

B
13.

Which of the following instruments is used to demonstrate the response of roots and shoots to gravity?

A. Clinostat

B. Manometer

C. Porometer

D. Potometer

E. Photometer

Detailed Solution

Clinostat : A device used in experiments to test the influence of gravity on the growth movements of plants (see geotropism).
14.

Milk protein is hydrolyzed by

A. renin

B. amylase

C. lipase

D. lactase

E. pepsin

Detailed Solution

There are two common ways of achieving hydrolysis of milk proteins. You can either boil in a strong acid/ base for a very long time, or use an enzyme like PANCREATIC PROTEASE to simulate hydrolysis naturally. Pepsin is an example of pancreatic proteases.
15.

The rate of transpiration of a leafy shoot would be highest under

A. damp, cold, still air

B. damp, warm, moving air

C. dry, warm, moving air

D. dry, cold, moving air

E. dry, warm, still air

C
16.

What is name of the respiratory organ of the crab?

A. Tubules

B. Trachaea

C. Spiracles

D. Lungs

E. Gills

E
17.

The two types of human tapeworm can be distinguished by the presence or absence of

A. scolex

B. hook

C. head

D. sucker

E. proglottis

B
18.

All the following are digestive enzymes except

A. bile

B. lipase

C. maltase

D. pepsin

E. ptyalin

A
19.

In a bakery, yeast is added to flour to make bread rise. This is possible because yeast produces

A. alcohol

B. oxygen

C. carbon dioxide

D. energy

E. ethanol

C
20.

Accommodation of the human eye is best described as the

A. ability to see distant objects

B. movement of upper and lower eyelids

C. focusing of near and distant objects

D. changing of lens shape due to varying light intensities

E. constant adjustment of the iris

C
11.

Which of the following is NOT a function of the liver?

A. Regulation of blood sugar

B. Storage of iron

C. Formation of bile

D. Breakdown of excess amino acids

E. Excretion of urea from the blood

E
12.

Spirogyra reproduces vegetatively by

A. spore production

B. fragmentation

C. multiple fission

D. budding

E. binary fission

B
13.

Which of the following instruments is used to demonstrate the response of roots and shoots to gravity?

A. Clinostat

B. Manometer

C. Porometer

D. Potometer

E. Photometer

Detailed Solution

Clinostat : A device used in experiments to test the influence of gravity on the growth movements of plants (see geotropism).
14.

Milk protein is hydrolyzed by

A. renin

B. amylase

C. lipase

D. lactase

E. pepsin

Detailed Solution

There are two common ways of achieving hydrolysis of milk proteins. You can either boil in a strong acid/ base for a very long time, or use an enzyme like PANCREATIC PROTEASE to simulate hydrolysis naturally. Pepsin is an example of pancreatic proteases.
15.

The rate of transpiration of a leafy shoot would be highest under

A. damp, cold, still air

B. damp, warm, moving air

C. dry, warm, moving air

D. dry, cold, moving air

E. dry, warm, still air

C
16.

What is name of the respiratory organ of the crab?

A. Tubules

B. Trachaea

C. Spiracles

D. Lungs

E. Gills

E
17.

The two types of human tapeworm can be distinguished by the presence or absence of

A. scolex

B. hook

C. head

D. sucker

E. proglottis

B
18.

All the following are digestive enzymes except

A. bile

B. lipase

C. maltase

D. pepsin

E. ptyalin

A
19.

In a bakery, yeast is added to flour to make bread rise. This is possible because yeast produces

A. alcohol

B. oxygen

C. carbon dioxide

D. energy

E. ethanol

C
20.

Accommodation of the human eye is best described as the

A. ability to see distant objects

B. movement of upper and lower eyelids

C. focusing of near and distant objects

D. changing of lens shape due to varying light intensities

E. constant adjustment of the iris

C