Question

Assertion (A): Those organisms which can make their own food from the inorganic substances (like carbon dioxide and water) present in the environment are called autotrophs.

Reason (R): The autotrophs contain the green pigment called chlorophyll which is capable of trapping sunlight energy. This trapped sunlight energy is utilised by the autotrophs to make food by combining inorganic materials like carbon dioxide and water present in the environment by the process called photosynthesis.

Options

• Both A and R are true and R is correct explanation of the assertion.

• Both A and R are true but R is not the correct explanation of the assertion.

• A is true but R is false.

• A is false but R is true.

Answer 1

Both A and R are true and R is correct explanation of the assertion.

Explanation:

• Assertion (A) is true: Autotrophs are organisms that prepare their own food from inorganic substances such as carbon dioxide and water.
• Reason (R) is true: Autotrophs (like green plants) contain chlorophyll, which traps sunlight. This light energy is used to convert carbon dioxide and water into food through photosynthesis.