Previous Year Papers

Download Solved Question Papers Free for Offline Practice and view Solutions Online.

Test Series

Take Zigya Full and Sectional Test Series. Time it out for real assessment and get your results instantly.

Test Yourself

Practice and master your preparation for a specific topic or chapter. Check you scores at the end of the test.

Plant Growth and Development

Multiple Choice Questions

The Avena curvature is used for bioassay of

GA₃
IAA
Ethylene
Ethylene

1950 Views

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

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

Flowering

There are three factors which govern the flowering in angiosperms. These factors are completion of juvenile phase and attaintment of mature or adult phase, suitable light and proper temperature.

863 Views