
The saliva contains the enzyme-

Important Questions on The Human Digestive System

Answer the following:
A rabbit has a longer small intestine than a tiger. Give scientific reason.





Food is broken down in the alimentary canal into smaller molecules:
(a) What is the importance of HCl in the stomach of man?
(b) What is the role of Bile Salts in the Emulsification of Fats?

Write the name of pigment found in leaf of green plants.

Draw the diagram of open and closed stomata and label:
a) chloroplast
b) guard cells



Name the following:
The first enzyme to mix with food in the digestive tract



What is photosynthesis? Write any three factors that affect photosynthesis.

From where do plants get each of the raw materials required for photosynthesis?

What is the role of saliva in the digestion of food?

Hari had a problem with carbohydrate, protein and fat metabolism in his body:
a) Name the element he must include in his diet to overcome this problem.
b) Give one symptom of the deficiency disease caused in the above.

Answer the following:
Write a point of difference between parasites and saprophytes.

Study the following diagram of human tongue and identify the part I, II, and III

