Page 24 - Science Class 07

2. Define premolars and molars.
3. Write the structure and func on of stomach.

4. What happen in the small intes ne when food reaches here?
5. Write the func on of large intes ne.
6. How does an amoeba engulf food par cles?

7. What do you mean by vacular diges ve system?
H. Long answer ques ons.
1. Explain nutri on in animals.
2. What is the difference between absorp on and assimila on.

3. Explain the different types of teeth.
4. Describe the process of diges on in ruminants.
5. Explain nutri on in amoeba.

Project
Project
Project ActivityActivityActivity
Project Activity
A. Draw the pictures of the organs involved in diges ve system of human beings on a chart paper
and men on their func ons. Display this chart paper in your classroom or infront of your
study table.

B. Collect the pictures of teeth of different animals both herbivores and carnivores, and try to
find out the difference in their structure.
C. Write the func on of the following organs.
1. Tongue : _____________________________________________________

_________________________________________________________________________

2. Oesophagus : _____________________________________________________

_________________________________________________________________________

3. Stomach : _____________________________________________________
_________________________________________________________________________

4. Small intes ne : _____________________________________________________

_________________________________________________________________________

5. Large intes ne : _____________________________________________________
_________________________________________________________________________

HO
HO
HOTSTSTS
HOTS
A. Before playing, if we drink a glucose powder dissolved in a glass of water, it will give us instant
energy. Can you tell why?
B. Diges on needs help of two more systems in the body to provide energy from food. Which are
these systems and how do they help?

24 Science-7