Modification of Root

Q.

Supporting roots of sugarcane arise from:

1. Lower nodes of stem

2. Radicle of seed

3. Internodes of stem

4. Aerial branches of stem

Q.

The only function of the root is to absorb water and minerals for the plant.

1. True
2. False

Q. Pneumatophores are modifications of the shoot.

1. True
2. False

Q.

In order to capture more oxygen, the roots of the mangrove trees grow upwards, out of the soil. These are called __.

Q.

Pneumatophores in mangrove plants are helpful in

1. Fixation

2. Storage

3. Respiration

4. Buoyancy

Q. Which among the following is a modified root?

1. Potato
2. Ginger
3. Onion
4. Sweet potato

Q.

Cuscuta cannot synthesise its own food. It climbs on a different living plant for food. The plant on which it climbs is called a ____.

1. parasite

2. host

3. saprophyte

4. symbiont

Q. Which of the following statements are correct?

1. Stilt roots arise from nodes at base of the stem near the soil.
2. Prop roots arise from the stem and grow towards the soil.
3. Both prop and stilt roots are meant for mechnical support.
4. Both prop and stilt roots are meant for storage.

Q. Pneumatophores are modifications of the shoot.

1. True
2. False

Q. Floating roots help in gaseous exchange.

1. True
2. False