Transcript Cancer Cells

explain the relationship between mutation, cell cycle, and uncontrolled
cell growth potentially resulting in cancer.
Jessica Santos
McArthur High School
Cell Cycle Stages
•The life of a cell is
regulated by numerous
checkpoints and proteins
•A mutation in a protein
that is meant to either
SLOW or STOP the cell
cycle can cause a cell to
LOSE CONTROL
CANCER
•Is known as UNCONTROLLED
cell division
•It happens when
REGULATION of the cell cycle
has broken down
•CANCER CELLS:
•Divide more often than
do healthy cells
•May form disorganized
clumps called TUMORS
•Comes from normal cells
that have suffered
damage to the genes that
help make proteins
involved in Cell Cycle
Regulation
Which disease most likely occurs
after excessive exposure to
ultraviolet
radiation?
A. malaria
B. asthma
C. skin cancer
D. polio
A. one that sped up the cell cycle
B. one that slowed down the cell cycle
C. one that acted as a growth-promoting molecule
D. one that responded to growth-promoting molecules
Cancer is often characterized by tumors. Which
would most likely trigger the formation of a
tumor?
A. a parasite that both lived and reproduced within the
human body
B. a change in the DNA sequence of a gene that codes for
skin coloration
C. a bacterial infection that caused inflammation and
swelling in body tissues
D. a mutation in a gene that codes for a protein
regulating cell