2.5 The Cell Cycle

Question 0

Semi conservative replication

Answer 0

Dna is half original strand which acts as template, helicase seperatea strands, free nucleotides activate, match up to complimentary bases, polymerase forms hydrogen bonds

Question 1

Cell division

Answer 1

2 stages, cell and nuclear division. Dna must replicate first so each daughter cell gets identical copies

Question 2

Mitosis

Answer 2

Division of the nucleus resulting in two identical daughter cells

Question 3

Interphase

Answer 3

When the cell is not dividing

Question 4

Interphase stages

Answer 4

G1- protein synthesis
S- organelles grow
G2- dna replicated

Question 5

Mitosis stages

Answer 5

Prophase- chromosomes condense
Metaphase- spindle fibres form
Anaphase- chromatids separate to poles
Telophase- envelope reforms

Question 6

Mitosis is important for

Answer 6

Growth, differentiation, repair

Question 7

Cancer

Answer 7

Uncontrolled cell growth, treatment involves blocking part of the cell cycle