Multiple Choice
Which of the following is not an example of metabolism?
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7. Energy and Metabolism
Introduction to Metabolism
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Which of these food molecules would your body use for energy first?
A
Nucleic acids
B
Proteins
C
Carbohydrates
D
Fats
Verified step by step guidance1
Understand the primary function of each macromolecule: Carbohydrates, Proteins, Fats, and Nucleic Acids.
Recognize that carbohydrates are the body's preferred source of energy because they can be quickly broken down into glucose, which is used in cellular respiration to produce ATP.
Recall that proteins are primarily used for building and repairing tissues, and nucleic acids are involved in genetic information storage and transfer, not energy production.
Note that fats are a secondary energy source, providing more energy per gram than carbohydrates but are metabolized more slowly.
Conclude that carbohydrates are the first choice for energy because they are readily available and easily metabolized to meet immediate energy needs.
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