Apples are generally wrapped in waxed paper to

Options

A. prevent sunlight for changing its colour
B. prevent aerobic respiration by checking the entry of `O_(2)`
C. prevent ethylene formation due to injury
D. make the apples look attractive

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks why apples are generally wrapped in waxed paper after they are harvested.

2. **Identifying the Purpose of Waxed Paper**: Waxed paper is used to cover apples. The primary purpose of this wrapping is to protect the apples and extend their shelf life.

3. **Mechanism of Action**: When apples are wrapped in waxed paper, it creates a barrier that closes the pores on the surface of the fruit. This closure is crucial because it prevents the exchange of gases.

4. **Impact on Respiration**: By preventing gas exchange, the wrapping reduces the amount of oxygen that enters the fruit. This is significant because oxygen is necessary for aerobic respiration, a process that leads to the breakdown of sugars and results in the aging (senescence) of the fruit.

5. **Resulting Benefits**: With reduced gas exchange and limited oxygen, there is a decrease in catabolism (the breakdown of complex molecules) and senescence (aging). This means that the apples remain fresh for a longer period.

6. **Conclusion**: Therefore, the correct answer is that apples are wrapped in waxed paper to prevent aerobic respiration by checking the entry of oxygen.

**Final Answer**: Apples are generally wrapped in waxed paper to prevent aerobic respiration by checking the entry of oxygen.

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