Chaprer 2 Mitosis

Question 1

What is mitosis

Answer 1

Mitosis is the process in which cells divide to become 2 cells from one cell helping the body to grow and repair.

Question 2

Mitosis helps the body ….l.

Answer 2

Grow and Repair

Question 3

Name the 4 stages of mitosis

Answer 3

Prophase metaphase anaphase telophase

Question 4

Explain what occurs during inter phase

Answer 4

The dna has copied itself in the nucleus and sub cellular structures are grown bigger the DNA is exactly the same as it’s copy

Question 5

What happens during prophase

Answer 5

The chromosomes condense getting shorter and fatter the membrane around the nucleus breaks down and chromosomes lie free in the cytoplasm

Question 6

What happens during metaphase

Answer 6

The chromosomes line up in the centre of the cell

Question 7

What happens during anaphase

Answer 7

Cell fibres ‘spindle fibres’ pull the x shaped chromosomes apart separating the x’s to opposite ends of the cell

Question 8

Telophase

Answer 8

Membranes Form around each of the sets of chromosomes these become the nucleus of the new cells.

Question 9

What is cytokinesis

Answer 9

Cytokinesis is a process before telophase ends where the cytoplasm and cell membrane divide to form 2 separate cells

Question 10

What is a chromosome

Answer 10

A chromosome is a coiled up length of DNA which sits indie a cells nucleus