Which of the following is not the lateral branches of the roots?

1. Tertiary roots

2. Secondary roots

3. Primary roots

4. Both 1 and 2

Roots developed from parts of the plant other than radicles are called

1. tap roots

2. fibrous roots

3. adventitious roots

4. nodular roots

Pneumatophores are seen in:

1. Rhizophora

2. Banyan tree

3. Carrot

4. Turnip

The cells of which of the following regions of the root are responsible for growth of its length?

1. Root cap

2. Region of meristematic activity

3. Region of elongation

4. Region of maturation

The region responsible for growth in the length of the root is:

1. A

2. B

3. C

4. D

Root hairs develop from the region of

(1) maturation

(2) elongation

(3) root cap

(4) meristematic activity

Which of the following is incorrect about A, B, C and D:
(1) Tap roots of carrot, turnip and adventitious root of sweet potato, get swollen and store food

(2) Pneumatophores help to get oxygen for respiration

(3) Pneumatophore is found in the plants that grow in sandy soil

(4) A, B and C are underground roots but D grows vertically upwards

Select correct option with respect to Rhizophora

(i) Grows in swampy area.

(ii) Pneumatophores are present for respiration.

(iii) Is halophyte.

(iv) Shows in-situ germination of seed.

1. All are correct.

2. All are correct except (iv).

3. All are correct except (i) & (iv).

4. All are correct except (i), (iii), & (iv).

Sweet potato is a modified

1. Rhizoid

2. Stem

3. Adventitious Root

4. Leaf