pack 5- mitosis

Question 1

interpahse stages

Answer 1

G1
S
G2

Question 2

G1 phase

Answer 2

cells grow larger
enzymes made ready for replication

Question 3

S phase

Answer 3

cell replicate DNA- semi conservative replication
DNA ocntent double

Question 4

G2 phase

Answer 4

cell continue to grow
proteins for division made

Question 5

Mitosis

Answer 5

prophase
metaphase
anaphase
telophase

Question 6

prophase

Answer 6

chromosomes condense- shorter and thicker
centrioles move to opposite poles of the cell
microtubules form
nucleolus and nuclear envelope break down

Question 7

metaphase

Answer 7

chromosomes attacht o spindle fibres by centromeres and line up along equator of cell

Question 8

anaphase

Answer 8

centromeres split
separate two sister chromatids
spindle fibres contract- shorten
pull two chromatids to opposite poles of cell

Question 9

telophase

Answer 9

chromosomes decondense
nuclear envelop form around groups of chromosomes- two nuclei
two nucleoli reform
spindle fibres break down

Question 10

cytokenesis

Answer 10

ring of protein filaments in cell membrane contract- dividing cell (animal)