Mitosis

Question 1

What is mitosis

Answer 1

When a cell reproduces itself by splitting to form two identical offspring

Question 2

How do you multi cellular organisms use mitosis?

Answer 2

To grow and develop or replace damaged cells

Question 3

What happens during the cell cycle

Answer 3

Growth and replication

Question 4

The steps of the cell cycle

Answer 4

1. In a cell that’s not dividing, the DNA is all spread out in long strings
2. Before it divides, the cell has to double the amount of sub cellular structures such as mitochondria and ribosomes
3. It then duplicates its DNA-so there’s only one copy of each chromosome for each new cell. The DNA is copied and forms X-shaped chromosomes. Each ‘arm‘ on the chromosome is an exact duplicate of the other.
   Then mitosis happens…

Question 5

The steps of mitosis

Answer 5

1. The chromosomes line up at the centre of the cell and cell fibres pull them apart. The arms of each chromosome go to opposite ends of the cell.
2. Membranes form around each of the set of chromosomes. These become the nuclei of the two new cells-the nucleus has divided.
3. Lastly, the cytoplasm and the cell membrane divide

Question 6

What does the cell produce after mitosis

Answer 6

Two daughter cells