Question

Class 7 - Science
1. Define the following.
a) Autotrophic nutrition
b) Heterotrophic nutrition
2. Which part of a plant is known as the food factory?
3. What are the raw materials required by the green plants to prepare their own food?
4. What is the function of guard cells?
INDIVITY​

Answer 1

Answer:

hope it helps uu

Explanation:

1a. The mode of nutrition in which organisms make their food by themselves is called Autotrophic nutrition

1b it is just opposite of autotrophic nutrition

2. Leaves

3.Photosynthesis

4.Guard cells are another type of plant single-cell models to study early signal transduction and stress tolerance mechanisms in plants

Answer 2

Explanation:

Autotrophic nutrition :

Autotrophic nutrition is a process in which the organism produces their food from the simple inorganic materials such as water, carbon dioxide and mineral salts in the presence of sunlight. All the green plants have an autotrophic mode of nutrition.

Heterotrophic nutrition :

Heterotrophic nutrition is a mode of nutrition in which organisms depend upon other organisms for food to survive. They can't make there food own like Green plants. Heterotrophic organisms have to take in all the organic substances they need to survive.

Which part of a plant is known as the food factory?

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A green substance in plants called chlorophyll traps the energy from the Sun needed to make food. Chlorophyll is mostly found in the leaves of a plant. The leaf can be thought of as a food factory.

3. What are the raw materials required by the green plants to prepare their own food?

Carbon dioxide, minerals, water, sunlight.