Multiple Choice
What is the primary source of fuel for the brain during normal physiological conditions?
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3. Energy & Cell Processes
Introduction to Metabolism
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Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
Which of the following is a by-product of the catabolism of proteins?
A
Glucose
B
Urea
C
Acetyl-CoA
D
Lactic acid
Verified step by step guidance1
Understand the process of protein catabolism: Proteins are broken down into amino acids, which are then deaminated to remove the amino group.
Recognize that the removal of the amino group from amino acids results in the formation of ammonia, a toxic compound.
Learn that the liver converts ammonia into urea, a less toxic compound, through the urea cycle.
Identify that urea is then excreted from the body through the kidneys in urine.
Conclude that urea is a by-product of protein catabolism, as it is formed from the breakdown of amino acids.
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