Section A

1. What is digestion?

2. What is the role of the Digestive System in our body?

3. What are the major components of the Digestive System?

4. Make a flowchart of order in which the food passes through your body.

5. List three digestive glands.

6. What is the modification of the small intestinal wall that serves to increase surface area for absorption of food?

7. Draw a well labelled diagram of the main organs of the digestive system.

8. Name the six types of nutrients needed by the body for growth, repair, maintenance, and energy?

9. How are the villi of the small intestine important to the digestive system?

10. Digestion begins in the mouth. Give an example of digestion which takes place in the mouth?

11. States the kinds of food are digested in the following organs along with their end products:

i. Mouth

ii. Stomach

iii. Small Intestine

Section B

Fill in the Blanks

1. Food moves through the alimentary canal because of muscular contractions called _____________.

2. During the process of digestion, fats are broken down into ____________.

3. During the process of digestion, proteins are broken down into ____________.

4. During the process of digestion, carbohydrates are broken down into ____________.

5. Villi present in the small intestine helps to _________ the dissolved food.

6. The tube leading into the stomach is the ____________.

7. ________ is the process of breaking down food and obtain energy from it.

8. _________________ breaks down food into smaller nutrients that can be absorbed into the bloodstream.

9. _________________ helps to absorb water from undigested food and forms solid waste called faeces.

10. Stomach is ________________shaped organ that stores food and helps to digest it.

Section C

True and False

1. Urine is a bodily waste discharged through digestive system. (True/False)

2. Villi are minute finger-like structures that cover the inner wall of the small intestine. (True/False)

3. Oesophagus is a muscular tube which connects the mouth to the stomach. (True/False)

4. Small intestine a long, coiled tube in which food is digested and absorbed. (True/False)

5. Saliva contains a protein-splitting enzyme that is secreted into the mouth that breaks down starch into sugar. (True/False)

6. Small intestine absorbs water from undigested food. (True/False)

7. Enzymes are chemicals that help to break down food. (True/False)

8. Anus is located at the end of the large intestine where solid wastes are stored. (True/False)