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Plant Growth and Development

Multiple Choice Questions

The Avena curvature is used for bioassay of

GA₃
IAA
Ethylene
Ethylene

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During seed germination its stored food is mobilised by

ethylene
cytokinin
ABA
ABA

1459 Views

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

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

793 Views

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

Avena coleoptile curvature

Auxin is a phytohormone that is often bioassayed by Avena coleoptile curvature test. The angle of curvature of a decapitated oat coleoptile is measured after placing an agar block containing auxin on one side. The ability of auxin to stimulate shoot growth is then measured.

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