A: Enzymes are special types of proteins.
R: Those substances which interfere with the action of enzymes are called inhibitors.

Options

A. If both As and R are correct and R is correct explanation of As
B. If both As and R are correct but R is not correct explanation of As
C. If As is correct, R is wrong
D. If both As and R are wrong.

Answer

To analyze the assertion and reason statements provided, we can break down the solution into the following steps:

### Step 1: Understand the Assertion
The assertion states that "Enzymes are special types of proteins."
- **Explanation**: Enzymes are indeed proteins that act as biological catalysts. They facilitate biochemical reactions by lowering the activation energy required for the reaction to occur. Most enzymes are proteins, with a specific three-dimensional structure that is crucial for their function.

### Step 2: Validate the Assertion
We need to determine if the assertion is true or false.
- **Conclusion**: The assertion is true because enzymes are primarily composed of proteins, which are made up of amino acids.

### Step 3: Understand the Reason
The reason states that "Those substances which interfere with the action of enzymes are called inhibitors."
- **Explanation**: Inhibitors are molecules that bind to enzymes and decrease their activity. They can be classified into different types, such as competitive and non-competitive inhibitors. Competitive inhibitors resemble the substrate and compete for the active site, while non-competitive inhibitors bind to another part of the enzyme.

### Step 4: Validate the Reason
We need to determine if the reason is true or false.
- **Conclusion**: The reason is true because inhibitors do interfere with enzyme activity, and they are classified as such based on their mechanism of action.

### Step 5: Analyze the Relationship Between Assertion and Reason
Now we need to assess whether the reason correctly explains the assertion.
- **Conclusion**: While both statements are true, the reason does not explain why enzymes are special types of proteins. The assertion is about the nature of enzymes, while the reason discusses the action of inhibitors, which is unrelated to the definition of enzymes.

### Final Conclusion
Both the assertion and reason are true, but the reason does not correctly explain the assertion. Therefore, the correct answer is that both statements are true, but the reason is not the correct reason for the assertion.

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