NEET BIOLOGY

PLANT PHYSIOLOGY

PLANT MOVEMENT

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Pulling tendrils move in ____ and pulling roots move in ____
A
a. air, soil
B
2. soil, air
C
3. air, air
D
4. soil, soil
Explanation: 

Detailed explanation-1: -The curling of tendrils is a growth movement induced due to contact or touch. Such a movement is called thigmotropic movement. When the tip of the tendril comes in contact with an uneven surface, it coils around the support.

Detailed explanation-2: -Roots of a plant move towards water, so that they show positive hydrotropism. Roots always grow within the direction of water, whether or not they need to grow against the pull of gravity or sideways.

Detailed explanation-3: -The movement of the roots of the plant towards the gravity or the interior of the earth is known as geotropism. This response is shown during movement of roots in search of water. So, the correct answer is ‘Geotropism’ Was this answer helpful?

Detailed explanation-4: -Tendrils grow towards a support in response to their touch. This phenomenon is known as thigmotropism.

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