Plant Growth

Question 1

Plant Growth

Answer 1

Growth is an increase in the size or number of cells (by mitosis). This causes an organism to get bigger. In plants, the stages of growth happen in three different regions.

Question 2

the stages of growth happen in three different regions: Zone of cell division

Answer 2

Zone of cell division: This zone is near the tip of a root. Cells divide by mitosis and new cells are created.

Question 3

Zone of elongation

Answer 3

This zone is further up the root, next to the zone of cell division.
Here, the new cells grow in size.

Question 4

Zone of differentiation

Answer 4

This zone is even further up the root, next to the zone of elongation.
This is where the new cells differentiate (become specialised into different types of cells).

Question 5

The key features of a virus:

Answer 5

Zone of differentiation: The new cells become specialised into different cell types.
Zone of cell division: Cells divide by mitosis and new cells are created.
Zone of elongation: The new cells grow in size.

Question 6

Which zone is furthest away from the tip of the root?

Answer 6

The zone of differentiation