Collenchyma

Q. Which among the following simple living tissues provides mechanical strength to the plant?

1. sclerenchyma
2. parenchyma
3. chlorenchyma
4. collenchyma

Q.

Branches of a tree move and bend freely in high wind velocity. Give reason.

Q.

Name the chemical deposited at the corner of the collenchyma cells.

Q.

Collenchyma is seen only in herbaceous dicots. Why?

1. Because woody dicots have sclerenchyma tissues to provide mechanical support

2. Because monocots grow as small herbs and don't need much mechanical support

3. Because collenchyma cells are not formed in monocots due to absence of lignin

4. Herbaceous dicots need collenchyma cells for photosynthesis

Q. Which of the following are characteristics of collenchyma?

1. Sub-epidermal
2. Contains pectin
3. Contains lignin
4. Cellulosic wall
5. Thickened walls
6. No cell wall
7. Elongated cells
8. Actively divide

Q. The simple tissue consisting of living cells and providing mechanical strength to plants is

1. Parenchyma
2. Chlorenchyma
3. Sclerenchyma
4. Collenchyma

Q. Providing is the main function of collenchyma in plants.

1. storage
2. support
3. nutrients
4. buoyancy

Q.

Living simple mechanical tissue of plants is

1. Parenchyma

2. Collenchyma

3. Sclerenchyma

4. Bast

Q.

Collenchyma is seen only in herbaceous dicots. Why?

1. Because monocots grow as small herbs and don't need much mechanical support

2. Because collenchyma cells are not formed in monocots due to absence of lignin

3. Because woody dicots have sclerenchyma tissues to provide mechanical support

4. Herbaceous dicots need collenchyma cells for photosynthesis