6.1 Cell cycle

Question 1

what happens in G1

Answer 1

first growth phase, normal cellular activities/metabolic processes, organelles copied, cell increases in size

Question 2

what are the three stages of interphase

Answer 2

G1, S, G2

Question 3

what happens in G2

Answer 3

cellular activities/normal metabolic processes, organelles copied, increase cell size, ATP/ energy stores are increased

Question 4

what happens in synthesis

Answer 4

the DNA is replicated in the nucleus

Question 5

what is G0

Answer 5

nondividing state in which a cell has left the cell cycle this can happen is the cell or its DNA is damaged or if it becomes specialised

Question 6

what does the G1 checkpoint check for

Answer 6

-cell size
- nutrients
-growth
- DNA damage

Question 7

what does the G2 checkpoint check for

Answer 7

-cell size
- DNA replication
-DNA damage

Question 8

what does the spindle assembly checkpoint check for

Answer 8

chromosomes attached to spindle fibres at the centromere with one sister chromatid on each side of metaphase plate

Question 9

what does mitosis make

Answer 9

two genetically identical daughter cells