Cell Divison - Mitosis

Question 1

What is mitosis?

Answer 1

Mitosis is when a cell reproduces itself by splitting to form two identical offspring

Question 2

What do cells use mitosis for?

Answer 2

Making new cells for growth and repair

Question 3

How is DNA arranged in a cell that is not dividing?

Answer 3

DNA is spread out in long strings

Question 4

What happens when a cell gets a signal to divide?

Answer 4

The DNA is duplicated so there’s one copy for each new cell

Question 5

What shape does the copied DNA form?

Answer 5

X-shaped chromosomes

Question 6

After the DNA is duplicated into X-shaped chromosomes what happens?

Answer 6

The chromosomes line up at the centre of the cell and cell fibres pull them apart, the two arms of each chromosome go to opposite ends of the cell

Question 7

What happens once the cell has been pulled apart?

Answer 7

Membranes form around each of the sets of chromosomes which become the nuclei of the two new cells and finally the cytoplasm divides.

Question 8

Aside from cell growth and repair what also uses mitosis?

Answer 8

Asexual reproduction