Multiple Choice
How many essential amino acids are required by the human body for proper functioning?
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3. Amino Acids
Essential Amino Acids
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How many amino acids are considered essential because they cannot be synthesized by the human body and must be obtained from the diet?
A
8
B
11
C
9
D
20
Verified step by step guidance1
Understand the concept of essential amino acids: Essential amino acids are those that the human body cannot synthesize on its own and must be obtained through dietary sources.
Recall the total number of amino acids used in protein synthesis: There are 20 standard amino acids that are incorporated into proteins.
Differentiate between essential and non-essential amino acids: Out of the 20 amino acids, some can be synthesized by the body (non-essential), while others cannot (essential).
Memorize the list of essential amino acids: The nine essential amino acids are histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, and valine.
Verify the correct number of essential amino acids: Based on the list, there are 9 essential amino acids that must be obtained from the diet.
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