7th ch 2 science test

Tick the correct answer.

A

1. Movement of food through the alimentary canal is called by which of these terms?

a. Locomotion     b. Peristalsis

2. Which of these is not a part of nutrition?

a. Digestion.       b. Excretion

3. The walls of the large intestine absorb which of these?

a. Cellulose.      b. Water

4. Bile is produced by which organ?

a. Pancreas          b. Liver

B

5. The process of breaking down of food into smaller pieces in mouth is

a. absorption

b. digestion

c. engulfing

d  ingestion

6. The process of rechewing the cud to further break down plant matter and stimulate digestion is

a. assimilation

b  ruminating

c. mastication

d. nutrition

7. Fat is completely digested in the

a. stomach

b. mouth

c  small intestine

d. large intestine

8 Water from the undigested food is absorbed mainly in the

a. stomach

b. foodpipe

c. small intestined. 

d  large intestine

C  Fill in blanks

1. Most of the enzymes in the small intestine come from........

2. The ......... present on our tongue help us to taste food.

3. Saliva is secreted in the mouth by ...........

4. Living organism that cannot make their own food are called .....

D. Give one word for the following.

1. The process of passing of digested food into blood vessels in the intestine 

2. The conversion of absorbed food in complex substances 

3. The process of throwing out of waste of digested, food from the rectum 

4. The process by which food is crushed and ground by teeth 

E. Answer the following questions in brief.

1. What are the steps of nutrition involved in animals? 

2. Name the organs that make up the alimentary canal.

3. Name the four types of teeth. 

4. Name the four compartments in a ruminant's stomach

5. What do you understand by milk and permanent teeth?

6. What are pseudopodia? - 27

F. Answer the following questions in detail.

1. Discuss the function of the digestive juice in the process of digestion. 

2. Draw a labelled diagram of the human digestive, system. 

3. Name the types of teeth present in humans (Write the number and function of each type

4. Explain how ruminants digest their food. How is the their digestion process different from the digestion in humans?