Class 7 Science Chapter 1 – Very Short Questions

Very Short Questions

1. What is nutrition?

 

Answer:

1. • Nutrition is the process of obtaining and utilizing food for growth, energy, and maintenance.

 

2. Name the process by which green plants make their food.

 

Answer:

1. • Photosynthesis.

 

3. What are autotrophs? Give one example.

 

Answer:

1. • Autotrophs are organisms that make their own food using sunlight. Example: Green plants.

 

4. What are heterotrophs? Give one example.

 

Answer:

1. • Heterotrophs are organisms that depend on other organisms for food. Example: Humans.

 

5. Which pigment is responsible for photosynthesis?

 

Answer:

1. • Chlorophyll.

 

6. Name the gas used by plants during photosynthesis.

 

Answer:

1. • Carbon dioxide.

 

7. What is the main source of energy for plants?

 

Answer:

1. • Sunlight.

 

8. Name the end products of photosynthesis.

 

Answer:

1. • Glucose and oxygen.

 

9. What are stomata?

 

Answer:

1. • Stomata are tiny pores on leaves that help in gas exchange.

 

10. Give one example of a parasitic plant.

 

Answer:

• Cuscuta (Amarbel).