T.S of Dicot and Monocot Root

Q. How does the stele differ in the monocot and dicot roots?

1. In the arrangement of xylem and phloem
2. In pith region
3. In the number of xylem bundles
4. Both b and c

Q.

Which monocot shows secondary growth?

Q. The tissue present between xylem and phloem of a root is called

1. endodermis
2. conjunctive tissue
3. pith tissue
4. pericycle

Q. In the following question, a statement of assertion is followed by a statement of reason. Mark the correct choice as:
Assertion: No secondary growth takes place in monocots.
Reason: Secondary growth is not related with cambium.

1. If both assertion and reason are true and reason is the correct explanation of assertion.
   
2. If both assertion and reason are true but reason is not the correct explanation of assertion.
   
3. If assertion is true but reason is false.
   
4. If both assertion and reason are false.

Q.

Velamen cells are found in epiphytes:

1. Below the epidermis

2. Just outside the cortex

3. Below the endodermis

4. Just outside the exodermis

Q. Which of the following plants is considered to study the anatomy of the dicot root?

1. Onion
2. Grass
3. Maize
4. Sunflower

Q. Consider the following statements.
I. In a dicot root, the vascular bundles are collateral and endarch.
II. The innermost layer of cortex in a dicot root is endodermis.
Ill. In a dicot root, the phloem masses are separated from the xylem by parenchymatous cells that are known as the conjunctive tissue.
Choose the correct option.

1. I is correct. but II and III are incorrect
2. II is correct, but I and III are incorrect
3. I is incorrect, but II and III are correct
4. II is incorrect, but I and Ill are correct
5. III is correct, but I and II are incorrect

Q.

Radial, diarch, exarch vascular bundles occur in

1. Monocot root

2. Dicot root

3. Monocot stem

4. Dicot stem

Q. Find out the wrong statement about angiosperm roots

1. xylem is centripetal in growth in the young roots
2. cuticle is absent in young stages
3. the apex is protected by root cap
4. vascular bundles are collateral

Q. Four radial vascular bundles are found in:

1. Dicot root
2. Monocot root
3. Dicot stem
4. Monocot stem