Which of the following is not a function of auxin?

It promotes apical dominance

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It helps in the initiation of flowering

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It helps in seed germination

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It can be used as weedicides

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Solution

The correct option is C It helps in seed germination
Auxin does not help in seed germination. Gibberellins help in seed germination. It helps in the hydrolysis of starch to glucose. This glucose is utilized in cellular respiration and provides energy to the embryo.
Auxin is a plant growth promoter that helps to promote apical dominance ( a phenomenon in which the growth of the main central stem of the plant is more as compared to the other stems), helps in initiation of flowering(e.g in pineapple), and can also be used as a weedicide(e.g 2,4-D).

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Similar questions

Q. Which of the following statements regarding ethylene is/are correct?
I. Ethylene influences the growth of seeds and seedlings.
II. It helps in breaking the dormancy of seeds.
III. It promotes the formation of apical hook in dicots, germination and horizontal growth of seedlings.

Q. Match the following:

\begin{matrix} Plant Growth Regulators & Functions 1.Auxin & A.Promotes seed germination 2.Gibberellin & B.Helps to overcome apical dominance 3.Cytokinin & C. Promotes apical dominance \end{matrix}

Q. Pick out the correct statements.
(A) Cytokinins specially help in delaying senescence.
(B) Auxins are involved in regulating apical dominance.
(C) Ethylene is especially useful in enhancing seed germination.
(D) Gibberellins are responsible for immature falling of leaves.

Pick out the correct statements.
I. Cytokinins especially help in delaying senescence.
II. Auxins are involved in regulating apical dominance.
III. Ethylene is especially useful in enhancing seed germination.
IV. Gibberellins are responsible for immature falling of leaves.

Q. Which of the following statements is /are correct about cytokinin?.
Statement 1: Cytokinin is a hormone whose main function is the induction of cell division and delay in senescence
Statement 2: Cytokinin is the process of cell division
Statement 3: Cytokinin helps in breaking seed dormancy.
Statement 4: Cytokinin helps to overcome apical dominance.

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Role of Auxin

Standard XII Biology

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