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Lipids

Question 4 • PA Human Anatomy & Physiology A 2026-2027 SMITH IC

Are used for main source of energy

Answer
A
Carbohydrates
B
Lipids
C
Proteins
D
Nucleic acids

Explanation

Carbohydrates are the body's main source of energy because they are broken down into glucose, which cells use to make energy. Lipids can also provide energy, especially for long-term storage, but carbohydrates are the primary source.

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