Cell Cycle
What is cancer?
a disorder in which body cells lose the ability to control growth (uncontrollable growth)
What are examples of carcinogens?
Smoking (cigarettes), smoke (general), radiation
During this phase, chromosomes are pulled apart
Mitosis is an example of what type of reproduction?
Asexual
Name 3 causes of cancer
environmental-chemicals: cigarettes, asbestos. nitrates, pesticides, radiation, viruses, obesity/poor diet, defected gene.
What type of cells only and always go through mitosis?
Somatic (body cells)
During this phase, the chromosomes begin to appear and coil
Prophase
The daughter cells of mitosis are _________ to the parent cell.
Identical
How many chromatids make up a chromosome BEFORE they split during Anaphase?
2
During this phase, DNA is non-coiled chromatin
Interphase
Why do cells divide?
To replace old cells, growth, and tissue/cell damage
How many daughter cells are produced at the end of mitosis?
2
How do cancer cells differ from normal cells?
-They can spread to other parts of the body
-They do NOT self destruct when they mutate
-They grow and divide uncontrollably
-They do NOT follow signals from other cells
Cell self-destruction that normal cells carry out, but cancer cells do not, is known as?
apoptosis
During this phase, the cytoplasm begins to separate into two cells
Telophase
During which phase of the cell cycle does DNA replicate/duplicate?
S phase (Interphase)
When genes, like p53, are _________ they do NOT act properly which can lead to cancer.
mutated
During cytokinesis, animal cells and plants cells differ, because animal cells create a ___________ and plant cells create a ______________
cleavage burrow, cell plate