Fruits stored in a cold chamber exhibit longer storage life because

[UPSC Civil Services Exam – 2013 Prelims]

(a) exposure to sunlight is prevented

(b) concentration of carbon dioxide in the environment is increased

(c) rate of respiration is decreased

(d) there is an increase in humidity


Answer: (c)        

Explanation:

  • By placing fruits and vegetables in cold storage, their shelf life can be extended as it slows down the ripening process and keeps them fresh for a longer period.
  • This is because the respiration rate of fruits decreases in a cold environment, which reduces the amount of ethylene gas they release.
  • Ethylene is commonly referred to as the “fruit-ripening hormone,” and its production varies depending on the type of fruit.
  • When fruits are kept in cold storage, the rate of ethylene production decreases, leading to an increase in their overall shelf life.

Consider the following statements:                                                                   The Parliament of India can place a particular law in the Ninth Schedule of the Constitution of India. The validity of a law placed in the Ninth Schedule cannot be examined by any court and no judgement can be made on it. Which of the statements given above is/are correct?

Consider the following statements:                                               

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Consider the following statements:                                                         The Parliament of India can place a particular law in the Ninth Schedule of the Constitution of India. The validity of a law placed in the Ninth Schedule cannot be examined by any court and no judgement can be made on it. Which of the statements given above is/are correct?

Consider the following statements:                                               

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