Biochemistry quizzes
How your body turns nutrients into energy, and why the fat you lose mostly leaves through your lungs.
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From Biochemistry: How You Exhale the Fat You Lose
Why are some amino acids called 'essential'?
- The body cannot make them itself
- They are needed only during growth
- They are the most common in muscle
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Answer: The body cannot make them itself
Humans lack the pathways to build nine amino acids, so they must come from food; the others can be made from intermediates the body already has.
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