Cell division and Growth

What is growth?

Increase in size or mass

When do animals typically grow?

In their youth because cells divide at a fast rate

What is cell division used for in adults?

Repair since cell differentiation is lost at an early stage

How do plants grow in height?

Cell elongation - where a plant cell expands and becomes bigger

Where does cell division happen in plants?

Tips of the roots and shoots

Do plants stop growing?

Plants grow continuously and continue to differentiate to develop new parts

What does an organism DNA control in growth?

The rate cells divide at

What happens if there is a change in the genes that control cell division?

Uncontrollable division in cells

How is a tumour formed and what does it do?

Caused by a mass of cells, can invade and destroy surrounding tissue which is called cancer

What do percentile charts measure?

À Childs growth over time using length, mass and head circumference