Assertion      :       Carbohydrates are more suitable for the production of energy in the body than proteins and fats.

Reason         :       Carbohydrates can be stored in the tissues as glycogen for use in the production of energy, whenever necessary.

1. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
2. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
3. If the assertion is true but the reason is false
4. If both the assertion and reason are false

Assertion      :       The amino acid glycine comes under the category of nonessential amino acids.

Reason         :       This is due to the fact that it can not be synthesised in the body.

Assertion      :       The mode of nutrition in higher animals is heterotrophic.

Reason         :       Animals can use different trophic levels for heterotrophic nutrition.

Assertion      :       Chewing is one of the important process of digestion in animals.

Reason         :       It helps in enzyme action.

Assertion      :       Adult human being is not perfect in digestion of milk.

Reason         :       With age, man produces little or no lactase in the intestinal juice.

Assertion  :       Trypsin helps in blood digestion of predator aimals.

Reason     :     Trypsin hydrolyses fibrinogen.

Assertion      :       Volume and fluidity of intestinal contents have increased in a person.

Reason         :       The person drank sea water.

Assertion      :       Sea-faring fishermen suffer from paralysis.

Reason         :       They can be deficient of Vitamin B₁.

Assertion      :       Starch is hydrolysed by ptyalin to maltose.

Reason         :       Sucrose hydrolyses sucrose to lactose.

Assertion      :       Cold blooded animals have no fat layer.

Reason         :       Cold blooded animals use their fat for metabolic process during hibernation.