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Assertion:Over exposure to sun tans the ...

Assertion:Over exposure to sun tans the skin in human beings.
Reason:In epidermal cells melanin appear and saves the skin from UV rays of sun.

A

If both Assertion and Reason are true and 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.

Text Solution

AI Generated Solution

The correct Answer is:
**Step-by-Step Text Solution:** 1. **Understanding the Assertion**: The assertion states that overexposure to the sun tans the skin in human beings. This is a well-known fact, as prolonged exposure to UV rays from the sun leads to the darkening of the skin, a process commonly referred to as tanning. 2. **Understanding the Reason**: The reason provided is that in epidermal cells, melanin appears and protects the skin from UV rays of the sun. Melanin is a pigment produced by skin cells, and its primary function is to absorb UV radiation, thereby reducing the risk of DNA damage that can lead to skin cancer and other skin-related issues. 3. **Linking Assertion and Reason**: The assertion and reason are closely linked. The tanning of the skin (assertion) occurs as a protective response to UV exposure, which is mediated by the production of melanin (reason). When the skin is exposed to UV rays, it stimulates the production of melanin to protect deeper layers of the skin from potential damage. 4. **Evaluating the Truth of Both Statements**: Both the assertion and the reason are true. The assertion accurately describes the effect of sun exposure on skin, while the reason correctly explains the biological mechanism behind this effect. 5. **Conclusion**: Since both the assertion and the reason are true and the reason provides a correct explanation for the assertion, the final answer is that both statements are true, and the reason is a correct explanation of the assertion. **Final Answer**: Both assertion and reason are true, and the reason is a correct explanation of the assertion. ---
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