Assertion : Enzymes are organic catalysts.
Reason : They catalyze the chemical reactions .

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

To analyze the assertion and reason provided in the question, we can break it down step by step.

### Step 1: Understanding the Assertion
The assertion states that "Enzymes are organic catalysts."
- Enzymes are indeed organic molecules, primarily proteins, that speed up chemical reactions in biological systems. They lower the activation energy required for reactions to occur, which classifies them as catalysts.

### Step 2: Understanding the Reason
The reason states that "They catalyze the chemical reactions."
- This is true as well. Enzymes facilitate biochemical reactions by increasing the rate at which they occur without being consumed in the process.

### Step 3: Evaluating the Assertion and Reason Together
Now, we need to evaluate whether both the assertion and the reason are correct and if the reason correctly explains the assertion.
- Both statements are correct: enzymes are organic catalysts, and they do catalyze chemical reactions. However, it is more accurate to specify that they catalyze biochemical reactions, as enzymes primarily function in biological contexts.

### Conclusion
Since both the assertion and the reason are true, and the reason supports the assertion, we can conclude that the assertion is correct, and the reason is also correct.

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

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