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Multiple Choice
How many phosphate groups are present in the molecule ATP?
A
One
B
Four
C
Two
D
Three
Verified step by step guidance
1
Understand the structure of ATP (Adenosine Triphosphate). ATP consists of an adenosine molecule bonded to three phosphate groups.
Recognize that the name 'triphosphate' indicates the presence of three phosphate groups. The prefix 'tri-' means three.
Visualize or draw the structure of ATP: it includes an adenine base, a ribose sugar, and three phosphate groups connected in a chain.
Identify each phosphate group in the ATP structure: the first phosphate is the alpha phosphate, the second is the beta phosphate, and the third is the gamma phosphate.
Conclude that ATP contains three phosphate groups, as indicated by its name and structure.