Digestion of fats take place only after the food reaches small intestine. Give reason.

Digestive action of pepsin comes to a stop when food reaches small intestine. Justify.

Explain what happens when following reactions take place and give the balanced chemical equations. Glucose reacts with oxygen.

Explain what happens when following reactions take place and give the balanced chemical equations. Silver nitrate solution added to solution of sodium chloride.

Food chains do not exist in isolation. Give reasons.

Explain what happens when following reactions take place and give the balanced chemical equations. Copper reacts with concentrated nitric acid.

Explain the physiology of digestion in small intestine.

Correct the statement given below by the right option shown in the bracket against them. Absorption of amino acids and glycerol takes place in the (small intestine/large intestine)

Enzyme which does not directly act upon the food substrate in small intestine of man is………………. .

In a medullated nerve fibre, the conduction of impulses takes place at a fast rate. Give reason.