In a PET Scan a Patient Is Injected with Radioactively

question 21

Multiple Choice

In a PET scan a patient is injected with radioactively labeled glucose.Why would cancer cells take up more of the radioactive glucose than surrounding non-cancerous tissues?

• A)Because the produce more enzymes found in glycolysis.
• B)Because they are more sensitive to radiation.
• C)Because they require more oxygen to metabolize glucose.
• D)Because they rely more on oxidative phosphorylation than glycolysis to produce ATP.
• E)Because they are less sensitive to radiation.

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