Standard IX

Q. The flexibility in plants is generally due to the presence of a permanent tissue called __.

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

Q. Label the parts of phloem.

1. Sieve plate
2. Sieve tube
3. Companion cell

Q. __ is found in the areas from which branching takes place.

1. Cork cambium
2. Vascular meristem
3. Apical meristem
4. Intercalary meristem

Q. Identify the characteristics of sclerenchyma cells.

1. Narrow
2. Wide
3. Small
4. Dead
5. Lignified
6. Stretchable
7. Woody
8. Unstretchable

Q. Identify the characteristics of sclerenchyma cells.

1. Narrow
2. Wide
3. Small
4. Dead
5. Lignified
6. Stretchable
7. Woody
8. Unstretchable

Q. Match the following

1. Conducts water
2. Conducts food
3. Exchange of gases

Q. Label the parts of xylem.

1. Xylem fibres
2. Xylem parenchyma
3. Tracheids
4. Xylem vessels

Q. Match the following

1. Conducts water
2. Conducts food
3. Exchange of gases

Q. Label the parts of xylem.

1. Xylem fibres
2. Xylem parenchyma
3. Tracheids
4. Xylem vessels

Q. Which of the following is a complex permanent tissue?

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