Mitosis

Question 1

What is mitosis?

Answer 1

It is when one parent cell divides to form two identical daughter cells.

Question 2

Why do cells do mitosis? (3 things)

Answer 2

1. Growth: so an organism can increase in size.
2. Repair: to replace or fix damaged body tissue.
3. Development: so that the cells can differentiate and specialise to perform new functions.

Question 3

What is the phase called that cells chromosomes start to replicate themselves?

Answer 3

Interphase. This phase is where the cell spends most of its time in.

Question 4

What is the acronym for the phases of mitosis?

Answer 4

P M A T (remember: a puppy pee mat)

Question 5

What happens in prophase?

Answer 5

The chromosomes are condensing in the nucleus which means they thicken and become visible.

Question 6

What happens in metaphase?

Answer 6

Chromosomes line up in the middle of the cell and the nucleus has been disassembled.

Question 7

What happens in anaphase?

Answer 7

Chromosomes are pulled to opposite sides of the cell with the help of fibres called spindles.

Question 8

What happens in telophase?

Answer 8

Chromosomes are at complete opposite ends. Two new nuclei are forming around the chromosomes. The cell then
splits by cytokinesis.

Question 9

What is Cytokinesis?

Answer 9

The physical process of cell division, which divides the cytoplasm of a parental cell into two daughter cells.