Multiple choice

Plant growth regulator ethylene is used:

  1. for slowing down the ripening of apples

  2. for speeding up the ripening of fruits

  3. as a saturated hydrocarbon

  4. for retarding the ripening of tomatoes
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Ethylene is a gaseous plant hormone that promotes fruit ripening. It is commercially used to accelerate this process in harvested fruits.

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