The mechanism by which useful materials in the glomerular filtrate are taken back into the blood is known
as

A. filtration

B. reabsorption

C. haemolysis

D. osmosis

E. dialysis

Which of the following takes place during the process of detoxication in the liver?

A. Poisonous substances in the body are converted into harmless substances

B. Fats and oils are broken into finer particles through emulsification

C. Excess glucose in the blood are converted into glycogen and stored

D. Worn- out red blood cells are broken down

E. Enough heat is generated to sustain the activities of the liver

The cup-shaped part of the Bowman’s capsule contains

A. nephridium

B. glomerulus

C. loop of Henle

D. nephron

E. convoluted tubule

The increase in width of blood vessels in the mammalian skin at high temperatures is known as

A. vasodilation

B. sweating

C. vasoconstriction

D. shivering

E. evaporation

The condition known as cretinism is caused by the deficiency of

A. adrenalin

B. vitamin A

C. insulin

D. thyroxin

E. vitamin C

Which of the following parts of the mammalian brain is involved in taking the decision to run rather than
walk?

A. Cerebellum

B. Medulla oblongata

C. Cranial nerves

D. Mid brain

E. Cerebrum

The brain and spinal cord make up the

A. peripheral nervous system

B. automatic nervous system

C. central nervous-system

D. somatic nervous system

E. sympathetic nervous system

Which of the following is not true about auxins? They

A. are manufactured by plants

B. are used in the site of production

C. are normally present in minute quantities in the cells of plants

D. regulate growth rate of plants

E. regulate direction of growth in plants

Which of the following stimuli are not perceived through the skin of mammals?

A. Light

B. Pressure

C. Pain

D. Heat

E. Cold

Which of the following parts of the' tongue does not correspond to the taste indicated against it?

A. Tip-sweet

B. Centre salt

C. Back-sour

D. Side-sour

E. Back-bitter