2.1.6 stages of mitosis

Question 1

explain what happens during prophase

Answer 1

chromatin fibres coil + condense = chromosomes
nucleus disappears
nuclear membrane begins to break down
centrioles move to opp ends of cell

Question 2

explain what happens during metaphase

Answer 2

chromosomes moved by spindle fibres to the equator of the cell
known as metaphase plate

Question 3

explain what happens during anaphase

Answer 3

the chrome red divide
splits the 2 chromatids from each other
pulled to poles of cells when spindle fibres shorten
(chromatids form V shape as they move)

Question 4

explain what happens during telophase

Answer 4

chromatids reach the poles = called chromosomes
nuclear envelope begins to reform around them
chromosomes start to uncoil
nucleus forms

Question 5

what is the process of cytokinesis

Answer 5

cytoplasm divides to separate the cells
begins during telophase

Question 6

what happens in animal cells during cytokinesis

Answer 6

a cleavage furrow forms in middle of cell
cell membrane pulled inwards by cytoskeleton
gets close enough to fuse in middle

Question 7

what happens in plant cells during cytokinesis

Answer 7

cannot form cleavage furrow due to cell wall
vesicles from golgi app assemble at equator
vesicles fuse together + fuse w/ cell mem.
new sections of cell wall form on new cell mem