Assertion : Proteins are linear polymers of long chains made up of amino acids.
Reason: Amino acids are called building blocks of proteins.

Options

A. If both Assertion and Reason are true and the Reason is a correct explanation of the Assertion.
B. If both Assertion and Reason are true but Reason is not a correct explanation of the Assertion.
C. If Assertion is true but the Reason is false.
D. If both Assertion and Reason are false.

Answer

**Step-by-Step Solution:**

1. **Understanding the Assertion**: The assertion states that "Proteins are linear polymers of long chains made up of amino acids." This means that proteins are composed of long sequences of amino acids linked together in a specific order.

2. **Understanding the Reason**: The reason given is "Amino acids are called building blocks of proteins." This indicates that amino acids serve as the fundamental units or components from which proteins are constructed.

3. **Connecting Assertion and Reason**: The assertion and reason are closely related. Since proteins are indeed made up of amino acids, it follows that amino acids can be referred to as the building blocks of proteins.

4. **Types of Proteins**: Proteins can be classified as heteropolymers because they are made up of different types of amino acids (there are 20 different amino acids). This is important because it highlights the diversity in protein structure and function.

5. **Conclusion**: Both the assertion and the reason are correct. The assertion accurately describes the nature of proteins, and the reason correctly explains why amino acids are considered the building blocks of proteins. Therefore, the correct answer is that both the assertion and reason are true, and the reason correctly explains the assertion.

**Final Answer**: Both the assertion and reason are true, and the reason correctly explains the assertion.

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