Mitosis

Question 1

What is the cell cycle?

Answer 1

The process where cells in multicellular organisms divide to produce new cells

Question 2

List the stages of the cell cycle in order.

Answer 2

• Interphase
• Prophase
• Metaphase
• Anaphase
• Telophase
• Cytokinesis

Question 3

What is mitosis?

Answer 3

A part of the cell cycle, split into the four stages of prophase, metaphase, anaphase and telophase

Question 4

Which processes is cell division by mitosis involved in?

Answer 4

• Growth
• Repair
• Asexual reproduction

Question 5

Describe what happens during the interphase stage of the cell cycle.

Answer 5

• Cell grows and increases the amount of subcellular structures it has
• It then duplicates its DNA to ensure the two new cells each have a full set of DNA

Question 6

Describe what happens during the prophase stage of the cell cycle.

Answer 6

• Chromosomes condense, getting shorter and fatter
• Membrane around nucleus breaks down, chromosomes lie free in cytoplasm

Question 7

Describe what happens during the metaphase stage of the cell cycle.

Answer 7

The chromosomes line up along the centre of the cell

Question 8

Describe what happens during the anaphase stage of the cell cycle.

Answer 8

• Spindle fibres pull chromosomes apart
• Chromatids are then pulled to opposite ends of the cell

Question 9

Describe what happens during the telophase stage of the cell cycle.

Answer 9

• Membranes form around each of the sets of chromosomes
• These become the nuclei of the two new cells

Question 10

Describe what happens during the cytokinesis stage of the cell cycle.

Answer 10

• (Happens just before telophase ends)
• The cytoplasm and cell membrane divide to form two separate cells

Question 11

What is the result of cell division by mitosis?

Answer 11

The production of 2 new, genetically identical, diploid daughter cells