Multiple Choice
Cholesterol is a steroid that has which additional functional group attached to its structure?
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1. Introduction to Biochemistry
Functional Groups
Multiple Choice
In the context of functional groups in biochemistry, how many phosphate groups does an ATP molecule contain?
A
Four phosphate groups
B
One phosphate group
C
Two phosphate groups
D
Three phosphate groups
Verified step by step guidance1
Recall the structure of ATP (adenosine triphosphate), which consists of an adenosine molecule attached to a chain of phosphate groups.
Identify the number of phosphate groups in ATP by noting the 'triphosphate' part of its name, which indicates the presence of three phosphate groups linked together.
Understand that these three phosphate groups are connected by high-energy phosphoanhydride bonds, which are important for ATP's role in energy transfer.
Recognize that the phosphate groups are distinct from the adenosine part, which is composed of adenine and ribose.
Conclude that ATP contains three phosphate groups based on its chemical structure and nomenclature.
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