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Multiple Choice
How many phosphate groups does ATP contain?
A
One
B
Four
C
Two
D
Three
Verified step by step guidance
1
Understand the structure of ATP (Adenosine Triphosphate). ATP is a nucleotide that consists of three main components: an adenine base, a ribose sugar, and a chain of phosphate groups.
Recognize that the name 'triphosphate' in ATP indicates the presence of three phosphate groups. The prefix 'tri-' means three.
Visualize or draw the structure of ATP to see the arrangement of the phosphate groups. The three phosphate groups are connected in a linear sequence.
Identify the specific names of the phosphate groups in ATP: alpha (α), beta (β), and gamma (γ) phosphates. The alpha phosphate is closest to the ribose sugar, followed by the beta and gamma phosphates.
Conclude that ATP contains three phosphate groups based on its structure and the meaning of its name.