Roots usually exhibit negative phototropism.

True

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False

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Solution

The correct option is A
True

Roots usually exhibit negative phototropism or move away from the light. This could also be due to gravitropism or movement towards gravity of the earth. The combination of phototropism and gravitropism allow plants to grow in the correct orientation.

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Similar questions

Which of the following plant part exhibits negative phototropism ?

(a) root

(b) branch

(d) stem

Q. Which part of the plant exhibits negative phototropism?

The root of a plant is :

(i) positively phototropic but negatively geotropic

(ii) positively geotropic but negatively phototropic

(iii) negatively phototropic but positively hydrotropic

(iv) negatively hydrotropic but positively phototropic

A potted plant is growing in a transparent glass jar. In this plant, X and Y are the two growing parts having a lot of meristematic tissue. It is observed that the part X of this plant exhibits positive geotropism but negative phototropism. On the other hand, part Y of this plant exhibits negative geotropism but positive phototropism.
(a) Name the part X of plant.
(b) Name the part Y of plant.
(c) Which part of the plant, X or Y, will exhibit positive hydrotropism?
(d) Which part of the plant, X or Y, can have tendrils on it?
(e) Which phytohormone causes the part X to exhibit negative phototropism?

Q. Negative Phototropism occurs in-

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Roots usually exhibit negative phototropism.

The correct option is A True Roots usually exhibit negative phototropism or move away from the light. This could also be due to gravitropism or movement towards gravity of the earth. The combination of phototropism and gravitropism allow plants to grow in the correct orientation.

The correct option is A
True

Roots usually exhibit negative phototropism or move away from the light. This could also be due to gravitropism or movement towards gravity of the earth. The combination of phototropism and gravitropism allow plants to grow in the correct orientation.