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 Multiple Choice QuestionsMultiple Choice Questions

1.

The Avena curvature is used for bioassay of

  • GA3

  • IAA

  • Ethylene

  • Ethylene

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2.

During seed germination its stored food is mobilised by

  • ethylene

  • cytokinin

  • ABA

  • ABA

1459 Views

3.

Match the following and select the correct answer.

Column I

Column  II

A.

Centriole

1.

Infolding in mitochondria

B.

Chlorophyll

2.

Thylakoids

C.

Cristae

3.

Nucleic acid

D.

Ribozymes

4.

Basal body cilia of flagella

  • A

    B

    C

    D

    4

    3

    1

    2

  • A

    B

    C

    D

    1

    2

    4

    3

  • A

    B

    C

    D

    1

    3

    2

    4

  • A

    B

    C

    D

    1

    3

    2

    4

857 Views

4.

A few normal seedlings of tomato were kept in a dark room. After a few days they were found to have become white - coloured like albinos. Which of the following terms will you use to describe them?

  • Mutated

  • Embolised

  • Etiolated

  • Etiolated

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5.

Which one of the following growth regulators is known as stress hormone?

  • abscsic acid

  • Ethylene

  • GA3

  • GA3

576 Views

6.

Auxin can be bioassayed by

  • Avena coleoptile curvature

  • Hydroponics

  • Potometer

  • Potometer

750 Views

7.

Through their effect on plant growth regulators, what do the temperature and light control in the plants?

  • Apical dominance

  • Flowering

  • Closure of stomata

  • Closure of stomata

863 Views

8.

Which one of the following generally acts as an antagonist to gibberellins?

  • Zeatin

  • Ethylene

  • ABA

  • ABA

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9.

Vernalisation stimulates flowering in

  • Zamikand

  • Turmeric

  • Carrot

  • Carrot

631 Views

10.

What causes a green plant exposed to the light on only one side, to bend toward the source of light as it grows?

  • Green plants need light to perform photosynthesis.

  • Green plants seek light because they are phototropic

  • Light stimulates plant cells on the lighted side to grow faster

  • Light stimulates plant cells on the lighted side to grow faster

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