All of the individual amino acids that make up human proteins
A - VCE - SSCE Chemistry - Question 8 - 2002 - Paper 1
Question 8
All of the individual amino acids that make up human proteins
A. have an -NH<sub>2</sub>, and a -CO<sub>2</sub>H group attached to the same carbon atom.
B. can be m... show full transcript
Worked Solution & Example Answer:All of the individual amino acids that make up human proteins
A - VCE - SSCE Chemistry - Question 8 - 2002 - Paper 1
Step 1
A. have an -NH<sub>2</sub>, and a -CO<sub>2</sub>H group attached to the same carbon atom.
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Answer
This statement is true, as all amino acids contain an amino group (-NH<sub>2</sub>) and a carboxyl group (-CO<sub>2</sub>H) attached to the same central carbon atom.
Step 2
B. can be made naturally in the human body.
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Answer
This statement is partially true as some amino acids are essential and must be obtained from the diet while others, known as non-essential amino acids, can indeed be synthesized in the body.
Step 3
C. contain the peptide group.
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Answer
This statement refers to peptides forming when amino acids are linked together. Individual amino acids do not contain a peptide group; however, once they join to form peptides, they will contain peptide bonds.
Step 4
D. have an -NH<sub>2</sub> and an -OH group attached to the same carbon atom.
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Answer
This statement is false. While amino acids have an amino group (-NH<sub>2</sub>) and a carboxyl group (-CO<sub>2</sub>H), they do not have a hydroxyl group (-OH) attached to the same carbon atom.
