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Multiple Choice
Which of the following molecules is similar in structure to ATP?
A
GTP (Guanosine Triphosphate)
B
NADH (Nicotinamide Adenine Dinucleotide)
C
FAD (Flavin Adenine Dinucleotide)
D
Coenzyme A
Verified step by step guidance
1
Identify the structure of ATP (Adenosine Triphosphate), which consists of an adenine base, a ribose sugar, and three phosphate groups.
Examine the structure of GTP (Guanosine Triphosphate). Note that it has a guanine base, a ribose sugar, and three phosphate groups, similar to ATP.
Compare the structure of NADH (Nicotinamide Adenine Dinucleotide). It contains an adenine base, but it is part of a larger dinucleotide structure with nicotinamide and does not have three phosphate groups.
Analyze the structure of FAD (Flavin Adenine Dinucleotide). It contains an adenine base, but it is part of a complex structure with flavin and does not have three phosphate groups.
Review the structure of Coenzyme A. It contains a pantothenic acid unit, a cysteamine unit, and an adenine nucleotide, but it does not have three phosphate groups like ATP.