Which high-energy reserve compound contains phosphate groups and is present in muscles?
A) Glucose 1-phosphate
B) Carnitine phosphate
C) Phosphofructokinase
D) Creatine phosphate
E) Creatinine phosphate
IMAT 2025 · Question 24
Q24 - ATP and bioenergetics
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The correct answer is D) Creatine phosphate.
Creatine phosphate is muscle's quick reserve. In a sudden burst of effort, it hands its phosphate to ADP and rebuilds ATP in seconds.
Creatinine (E) is the waste product of creatine, the one doctors measure in blood tests for kidney function. Phosphofructokinase is an enzyme, and carnitine carries fatty acids into mitochondria.
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