Phases of Growth

Q.

The growth of the cell wall during cell elongation takes place by -------------

Q.

Which plant tissue develops from dedifferentiation?

Q. In plants, the type of germination in which the cotyledons remain underground is

1. epigeal germination
2. hypogeal germination
3. indefinite type
4. definite

Q. In a growing plant, the first phase during the process of growth is

1. cell division
2. cell enlargement
3. cell differentiation
4. cell maturation

Q. Arrange the stages of cellular growth in ascending order from the first step to the last.

1. Division, differentiation, elongation
2. Division, elongation, differentiation
3. Differentiation, division, elongation
4. Elongation, division, differentiation

Q.

Is differentiation in plants open?

Q.

The maximum growth rate occurs in

1. Stationary phase

2. Senescent phase

3. Lag phase

4. Exponential phase

Q. Match the following related to phases of growth:

1. 
   Maximum size
2. 
   Cell division
3. Increased protoplasm

Q.

Hypocotyl is:

1. Part of embryonal axis above plumule

2. Part of embryonal axis above cotyledons

3. Part of embryonal axis below cotyledons

4. Hypocotyl terminates with plumule

Q.

New cell wall deposition & increased vacuolation are representing:

1. Phase of maturation

2. Phase of elongation

3. Meristematic phase

4. Phase of division

Q. Choose the characteristics of cells in meristematic phase:

1. Always dividing
2. Thick cell wall
3. Thin cell wall
4. Small size
5. No vacuoles
6. Reserved food
7. Dense
   protoplasm
8. Have vacuoles

Q.

New cell wall deposition & increased vacuolation are representing:

1. Phase of maturation

2. Phase of elongation

3. Meristematic phase

4. Phase of division