Plant Growth And Development MCQ

1. Coconut milk contains a cytokinin called ____ which promotes plant growth.

  1. Naphthalene acetic acid
  2. Indole-3-acetic acid
  3. Gelatin
  4. Zeatin

2. One of the following is not an auxin 

  1. Indole-3-acetic acid
  2. Malic Hydrazide
  3. Indole butyric acid
  4. Naphthalene acetic acid

3. _________can stimulate the germination of barley seeds

  1. α-amylase
  2. Abscisic acid
  3. Benzoic acid
  4. Coumarin

4. Seed dormancy is triggered by

  1. Indole-3-ethanol
  2. Abscisic acid
  3. Carbon dioxide
  4. None of the above

5. The significance of the day length in plants was first shown in:

  1. Barley
  2. Lettuce
  3. Tobacco
  4. Tomato

6. Uneven distribution of auxins may lead to

  1. Phototrophic curvature
  2. Day-neutral curvature
  3. Both (1) and (2)
  4. None of the above

7. Tendrils of garden peas coiling around any support signifies:

  1. Seismonasty
  2. Thigmotaxis
  3. Gravitropism
  4. Thigmotrophism

8. ____________ tissues synthesize natural cytokinins

  1. Old
  2. Rapidly dividing
  3. Storage
  4. None of the above

9. ________ is a plant hormone generally present in the gaseous state

  1. Ethylene
  2. Ethane
  3. Argon
  4. None of the above

10. _________ is a colourless gas that serves as a signalling hormone.

  1. Benzene
  2. Nitric Oxide
  3. Ozone
  4. None of the above
Answer Keys for Plant Growth And Development MCQ
Question Number Answer Key
1 4
2 2
3 1
4 2
5 3
6 1
7 4
8 2
9 1
10 2

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1 Comment

  1. Tejaswini Suresh bawanker

    Nice

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