6.1 The Cell Cycle

Question 1

Cell cycle

Answer 1

Sequence of events that takes place in a cell, resulting in the division of the cell + the formation of two genetically identical daughter cells

Question 2

Interphase

Answer 2

Majority of a cell spends its time in interphase, cell carries out its usual function while preparing for cell division

Question 3

G1

Answer 3

First growth phase; proteins are synthesised, organelles replicate, cell increases in size

Question 4

S (synthesis)

Answer 4

DNA is replicated in the nucleus

Question 5

G2

Answer 5

2nd growth phase; cell continues to increase in size, energy stores increase, DNA checked for errors

Question 6

Mitosis

Answer 6

Nucleus divides

Question 7

Cytokinesis

Answer 7

Cytoplasm divides and two cells are produced

Question 8

G⁰

Answer 8

Cell leaves the cycle, temporarily or permanently. Can be due to: differentiation, damaged DNA

Question 9

Checkpoint

Answer 9

Control mechanism of cycle, monitor and verify whether processes have been carried out correctly