the cell cycle

Question 1

what are the three stages of the cell cycle?

Answer 1

mitosis
interphase
cytokinesis

Question 2

what occurs during interphase?

Answer 2

(no division occurs)
G1 - organelles replicate and proteins are synthesised.
S phase - DNA is replicated.
G2 - chromosomes repair and size of cell increases.

Question 3

what is the G0 phase?

Answer 3

its the resting phase:
- can be temporary
- or for the rest of its life (if they are differentiated cells)

Question 4

what is the role of the M phase?

Answer 4

• to produce identical daughter cells for growth and asexual reproduction

Question 5

summarise the stages of the cell cycle.

Answer 5

stage 1 interphase - DNA replicates, number of organelles and vol of cytoplasm increases.
stage 2 mitosis - nucleus divides to produce 2 identical nuclei.
stage 3 cytokinesis - cytoplasm and membrane divide to form 2 genetically identical daughter cells.

Question 6

why do some eukaryotic cells not undergo the cell cycle?

Answer 6

not all cells have the ability to divide and only cells that have this ability undergo cell cycle.