Bone marrow cells and cells lining the gastrointestinal tract are more susceptible than other cells to damage caused by chemotherapy because they
a. are target cells for drugs.
b. have a rapid turnover rate.
c. are exposed to higher doses of the drugs.
d. absorb more of the drugs than they ex-crete.
B
Bone marrow cells and cells lining the gastrointestinal tract have a rapid turnover rate, which makes them highly susceptible to damage caused by chemotherapy. The drugs do not target these cells specifically, nor are they exposed to higher doses of the drugs. The impact of chemotherapy drugs on these cells is not related to absorption and excretion.
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