{Science 9} 5 Checkpoints In The Cell Cycle

Front 1

While preparing for division, a cell does ______________ to see if everything is ______________.

Back 1

self-checks
proceeding normally

Front 2

A cell with NOT divide if:

Back 2

there isn't enough nutrients to support growth.
the DNA has not been replicated.
the DNA is damaged.

Front 3

If a mutation occurs in a ______ that produces the instructions for a _____________ protein, cell cycle control will be lost.

Back 3

gene
checkpoint

Front 4

The problem: damaged cells can divide ________________.
This uncontrolled cell division is called _____________.

Back 4

without control
cancer

Front 5

Instead of the cell normally ___________ when a ____________ layer of cells has been produced, cancer cells grow in _____________ layers, forming tumours.

Back 5

stopping
single
multiple

Front 6

Cancer cells are ___________ and do not ______________ appropriately in the organ where they reside.

Back 6

abnormal
function

Front 7

They have large, abnormal ____________ because cell division checkpoints no longer function and the chromosomes do not ___________ correctly.

Back 7

nuclei
divide

Front 8

Cancer cells can ___________________ to other parts of the body via the _______________________ and hence can form __________.

Back 8

spread (metastasize)
circulatory system
new tumours

Front 9

Risk factors for developing cancer:

Back 9

alcohol. salt-cured, smoke, nitrite-cured foods/ obesity. radiation. tobacco. work (exposure to chemicals).