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Types of Hormones

Presence of e...

Question

Presence of ethylene gas causes fruits to ripen. As fruit ripens, it produces increasing amounts of ethylene.
This is an example of

A

Positive feedback

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B

Negative feedback

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C

Homeostasis

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D

Endocrine regulation

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Solution

The correct option is A Positive feedback
ethylene gas is an aging hormone used for fruit ripening but may also cause the plant to die. Ethylene gas is released when the plant is damaged mechanically or physically.
So the correct option is 'Positive feedback.'

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Similar questions

Test Group 1	Test Group 2	Test Group 3
Pair of ripe apples	One ripe apple, one unripe apple	Pair of unripe apples

Presence of ethylene gas causes fruits to ripen. As fruit ripens, it produces increasing amounts of ethylene. An investigator placed fruit samples sealed containers as shown in the image, and left them for three days. At the end of the time period, the investigator used iodine to test for the presence of starch.
List these in order from highest to lowest starch content.

Q. Very short answer type.
Name one ripening fruit, which produces ethylene gas.

Q. Assertion : Ethylene cause climacteric ripening of fruits
Reason : Climacteric fruits show a rise in respiration at the time of ripening.

Q. Ethylene helps in ripening of the fruit. If we keep ripened fruit with unripened fruit then the unripened fruit get ripened how can ethylene ripe a fruit which has bee n divided from the tree.how will they get energy to ripe

Q. Read the given statements and select the correct option.
Statement 1 : Ethylene is a gaseous hormone.
Statement 2 : Ethylene causes climacteric ripening of fruits.

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