8. THE ZONES OF CELL GROWTH

Where does the zone of cell division take place?

• Zone of cell elongation

• Zone of cell differentiation

• Root hair cells

• Apical meristems

What causes the elongation of the plant stem?

• Differentiation of cells

• Absorption of nutrients

• Formation of guard cells

• Increase in cell number

What process is responsible for the formation of a large vacuole in the zone of cell elongation?

• Vacuolation

• Mitosis

• Osmosis

• Diffusion

Which cells differentiate to form permanent tissues such as epidermis, cortex, xylem, and phloem?

• Meristem cells

• Guard cells

• Root hair cells

• Differentiating cells

What do epidermal cells in leaves differentiate to form?

• Root hair cells

• Guard cells

• Phloem

• Xylem

What is the function of guard cells?

• Control the opening of stoma

• Form permanent tissues

• Increase cell size

• Absorb nutrients

Which zone consists of cells that are increasing in size?

• Zone of cell division

• Zone of cell elongation

• Zone of cell differentiation

• Meristem cells

What exerts pressure against the cell walls in the zone of cell elongation?

• Diffused water

• Mitosis

• Osmosis

• Absorbed nutrients

What happens to cells once they have reached their maximum size in the zone of cell differentiation?

• They differentiate

• They elongate

• They divide

• They absorb nutrients

Which cells change their shapes and structures to become specialised cells with specific functions?

• Root hair cells

• Differentiating cells

• Guard cells

• Meristem cells