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Tissue Culture

Clinostat is ...

Question

Clinostat is the apparatus used to

A

Measure the rate of growth in plant

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B

Measure the quantity of auxin in plant

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C

Measure the effect of light on plant

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D

Eliminate the effect of gravity or geotropism on plant

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Solution

The correct option is A Measure the rate of growth in plant
Clinostat is the apparatus which is used to measure the rate of growth in plant. It uses rotation to neglate the effects of gravitational pull on plant growth and development. It is also used to study the effects of microgravity on cell cultures and embryos.
Thus, the correct answer is option A.

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Similar questions

Q. (a) What is (i) phototropism, and (ii) geotropism? With labelled diagrams, describe an activity to show that light and gravity change the direction that plant parts grow in.
(b) Mention the role of each of the following plant hormones:
(i) Auxin
(ii) Abscisic acid

Effect of auxins on plants is made use in commercial application of

Q.
To test the effect of an auxin on plant growth, the auxin was dissolved in a gelatin block. Several plant seedlings were prepared and growth was measured every five days.

Plant	Growth after 5 days	Growth after 10 days
1	15 mm	29 mm
2	4 mm	9 mm
3	5 mm	10 mm
4	14 mm	31 mm
5	8 mm	20 mm

What proves that auxin is necessary for plant growth?

The following experiment was performed to test the effect of auxin on plant growth: Study and answer question.

The auxin was dissolved in a gelatin block; gelatin does not affect the biological activity of the auxin. Several plant seedlings were prepared in a gelatin block; gelatin does not affect the biological, activity of the auxin. Several plant seedlings were prepared as described above and growth was measured every 5 days.

Based on the results of the experiment, one can conclude that the tip of the plant contains ....................

What proves that auxin is necessary for plant growth?

Q. What is the effect of increasing the intensity of light that falls on the emitter in a photo electric effect apparatus ?

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