Which of the following statements applies to glycerol metabolism?Group of answer choicesA. Glycerol is a product of triglyceride metabolism.B. Roughly 95% of the total energy produced by triglyceride metabolism comes from the metabolism of glycerol.C. Glycerol metabolism involves an oxidative phosphorylation step.D. Glycerol metabolism requires an input of ADP.E. More than one choice above.
Question
Which of the following statements applies to glycerol metabolism?Group of answer choicesA. Glycerol is a product of triglyceride metabolism.B. Roughly 95% of the total energy produced by triglyceride metabolism comes from the metabolism of glycerol.C. Glycerol metabolism involves an oxidative phosphorylation step.D. Glycerol metabolism requires an input of ADP.E. More than one choice above.
Solution
The correct answer is A. Glycerol is a product of triglyceride metabolism.
Here's a step-by-step explanation:
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Triglycerides are a type of fat found in your blood. When you eat, your body converts any calories it doesn't need to use right away into triglycerides.
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Triglycerides are then stored in your fat cells. Later, hormones release triglycerides for energy between meals.
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When triglycerides are broken down, they yield glycerol and fatty acids. This process is known as lipolysis.
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The glycerol that is produced can be converted into glucose by the liver and used as a source of energy.
So, glycerol is indeed a product of triglyceride metabolism. The other statements are not accurate. For example, the majority of energy produced by triglyceride metabolism comes from the metabolism of the fatty acids, not the glycerol. Glycerol metabolism does not involve an oxidative phosphorylation step, and it does not require an input of ADP.
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