Cell Cycle and Cancer Review

Whats cancer?

• when the cell stops dividing

• The cell dies

• uncontrolled/ unregulated cell division

• the cell doesn't produce energy

Which of the following is NOT a reason cells divide?

• replace/repair old or damaged cells

• growth

• to travel to other parts of the organism

• reproduction (prokaryotes)

Eukaryotic cells spend most of their cell cycle in which phase?

• interphase

• prophase

• metaphase

• anaphase

If the S-phase was eliminated from the cell cycle, the daughter cell would

• have half the genetic material found in the parental cell

• be genetically identical

• be genetically identical to the parent cell

• synthesize the missing genetic material on their own

Apoptosis is....

• cellular self-destruction

• cellular reproduction

• cancer of the blood

• signal that causes cell division

The first step of cell division in all organisms is...

• duplicate the organelles

• duplicate the DNA

• split the cytoplasm

• assemble the microtubules

An error, or change, to DNA is called a ____________.

• microtubule

• chromatid

• tumor suppressing gene

• mutation

Brain cells do not have the ability to divide and replace themselves because...

• Their cells undergo apoptosis.

• Their cells exit the cell cycle and exist in the phase called G0.

• Their cells have damaged DNA.

• Their cells stay in G1 permanently.

What is the purpose of a TUMOR SUPPRESSING GENE?

• to stop or slow the cell cycle

• to speed up the cell cycle

• to target and kill cells that are cancerous

• to build proteins for cell division

What is the purpose of an ONCOGENE?

• signals cells to stop dividing

• signals cells to start dividing

• fixes damaged DNA

• shortens the length of chromosome after each division