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WorksheetsCh9 - Cancer
Total questions: 26
Worksheet time: 13mins
A tumor is considered malignant:
if cells pile on top of each other
if cells avoid apoptosis
if it is invasive and spreads
when it is in situ
The cell in this figure labeled C has undergone:
specialization
differentiation
carcinogenesis
apoptosis
How do free radicals promote cancer?
promote detoxification
cause damage to DNA
prevent cell metabolism
promote metastasis
The most common cause of cervical cancer is: A) v B) C) D)
viral infection
because of radiation
from chemicals in the environment
BRCA1 gene
When the normal regulation of cell growth fails the result is:
shortened chromosome ends
abnormal nuclei and damaged DNA
programmed cell death
contact inhibition
The characteristic that differentiates the cell labeled B from the one labeled A in this figure is:
B cell has active oncogenes
B cell has proto-oncogenes
B cell has undergone apoptosis
B cell is specialized
Why is chemotherapy effective in treating cancer cells?
it is deadly to rapidly dividing cells anywhere in the body
it kills cancer cells but not healthy cells
it boosts the function of the immune system so that the body can remove cancer cells
it promotes cell growth so that healthy cells can overtake the cancer cells
Which kind of skin cancer is most dangerous?
basal cell
hyperplasia
squamous cell
melanoma
What class of cancer is indicated in the figure by 4?
leukemia
thyroid adenoma
sarcoma
lymphoma
What class of cancer is indicated in the figure by 3?
leukemia
thyroid adenoma
cervical cancer
lymphoma
What class of cancer is indicated in the figure by 5?
skin cancer
thyroid adenoma
cervical cancer
lymphoma
What class of cancer is indicated in the figure by 2?
skin cancer
breast cancer
cervical cancer
lymphoma
What class of cancer is indicated in the figure by 6?
skin cancer
breast cancer
cervical cancer
lymphoma
A highly reactive ion with an unpaired electron
free radical
growth factor
telomere
cancer
Abnormal genes that can cause cancerous cells
proto-oncogenes
oncogenes
Chemical substance that stimulates cell mitosis
free radical
growth factor
telomere
cancer
Segment of DNA bases located at tips of chromosomes
free radical
growth factor
telomeres
cancer
Process of cell specialization by gene expression
free radical
differentiation
telomeres
cancer
Cancer that originates in the epithelial cells
melanoma
sarcoma
carcinoma
lymphoma
Cancer that originates in pigment-producing skin cells
melanoma
sarcoma
carcinoma
lymphoma
Cancer that originates in lymph nodes & white blood cells
melanoma
sarcoma
carcinoma
lymphoma
Cancer that originates in connective & muscle tissue cells
melanoma
sarcoma
carcinoma
lymphoma
How does the immune system defend against cancer?
T and NK cells target unique antigens on cancer cells
T and NK cells turn on oncogenes
T and NK cells metastasize
Cells stimulate angiogenestis
The majority of skin cancers are caused by:
non-ionizing radiation
ionizing radiation
nuclear radiation
radon
Why is chemotherapy effective in treating cancer cells?
only effects cancer cells
targets rapidly dividing cells
promotes cell growth
boosts immune system
The most common cause of cervical cancer is:
viral infection
because of radiation
from chemicals in the environment
BRCA1 gene
