Cell Cycle
What is cancer?
uncontrol cell division and growth due to checkpoint failure
Why is apoptosis important?
it gets rid of unneeded cells + might protect an organism from cancer
Mention the function of the checkpoint in G1.
checks if the DNA is damaged
Describe four things that happen during prophase
1. nuclear envelope & nucleolus disappear
2. chromosomes coil and become visible
3. centrioles start to move to opposite ends
4. spindle fibers begin to form
Name 3 causes of cancer
environmental chemicals: cigarettes, pesticides, radiation (UV)
viruses
poor diet
defected gene (mutation)
What is apoptosis?
programmed cell death
Mention the function of the checkpoint in S phase.
checks if the DNA is replicating correctly.
What is the concern of cancer?
that it will spread to other body parts
Mention & explain one example of apoptosis in plants.
plants shedding their leaves in fall to renew them
Mention the function of the checkpoint in G2 phase.
checks if all of the DNA has been replicated.
Why do cells divide?
to repair damaged cells
to grow up & develop
to generate new cells
What is Cytokinesis
division of the cytoplasm
any substance that causes cancer is called----
carcinogen
Cell suicide is known as?
apoptosis
Mention the function of the checkpoint in M phase.
checks if the chromosomes properly attach to spindle fibers.
What is the result of Mitosis
A production of 2 new daughter cells that are identical to the parents cells
Mention & explain one example of apoptosis in humans.
webbed fingers, the skin cells between the fingers die to have a better grip.
Mention one of Ms. Atika's favorite restaurants.
Melenzane
IEntrecote
Vapiano
Burger Boutique
Hardees