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Byju's Answer
Standard VI
Biology
Response to Stimulus
The shoot of ...
Question

The shoot of the plant grows towards ______ while the root of the plant responds to _____.

A
water, sunlight
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B
sunlight, gravity
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C
gravity, sunlight
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D
gravity, water
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Solution

The correct option is B sunlight, gravity
The shoot of the plant grows towards sunlight and this is called phototropism. The roots grow towards gravity or the earth and this is called geotropism. Also, when there is less availability of water the root ends extend towards the moist soil that contains water. This is called hydrotropism.

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Q.

The shoot of the plant grows towards _____ while the root of the plant responds to _____.


Q. Fill in the following blanks :
(a) A plant's response to light is called ..........
(b) A plant's response to gravity is called ........
(c) Plant shoot grows upward in response to ........
(d) Plant roots grow downward in response to ........
(e) Tendrils wind around a support in response to .......
(f) Plant roots grow towards........ and in the direction of force of .........
(g) A root of a plant grows downward. This is known as ........
(h) ...... is the hormone that causes phototropism in plants
(i) The response of leaves to the sunlight is called ..........
Q.

Fill in the following blanks:

(a) A plant's response to light is called .................

(b) A plant's response to gravity is called .................

(c) Plant shoot grow upward in response to ..............

(d) Plant roots grow downward in response to .............

(e) Tendrils wind around a support in response to ..........

(f) Plant roots grow towards .......... and in the direction of force of ...............

(g) A root of a plant grows downward. This is known as ..............

(h) ........... is the hormone that causes phototropism in plants

(i) The response of leaves to the sunlight is called ..............

Q. A student takes a potted plant growing in a transparent glass jar. This potted plant having straight stem and straight root is kept near the window in a dark room so that sunlight falls on it from the right side (through the window). After some days, it is found that the stem of plant bends towards the right side (from where the light is coming) but the root bends to the left side, away from the light.
(a) What term is used to indicate:
(i) response of plant to sunlight?
(ii) bending of stem of plant towards sunlight?
(iii) bending of root of plant away from sunlight?
(b) Name the plant hormone which makes the plant respond to sunlight.
Q. _______ is a flowering plant that grows in water.
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