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Questions and Answers
Which of the following statements about amino acids is correct?
Which of the following statements about amino acids is correct?
- Amino acids contain a carboxylic acid group and an amino group. (correct)
- Amino acids exist as neutral molecules in solution.
- All amino acids have the same side chain group.
- Amino acids do not have a hydrogen atom in their structure.
In proteins, amino acids are joined together by which type of bond?
In proteins, amino acids are joined together by which type of bond?
- Hydrogen bonds
- Peptide bonds (correct)
- Ionic bonds
- Covalent bonds
What is the charge distribution of free amino acids in solution?
What is the charge distribution of free amino acids in solution?
- The amino group is positively charged, and the carboxylic group is negatively charged. (correct)
- The amino group is negatively charged, and the carboxylic group is positively charged.
- Both the amino group and the carboxylic group are negatively charged.
- Both the amino group and the carboxylic group are positively charged.
What is the structure of polypeptide chains in proteins?
What is the structure of polypeptide chains in proteins?
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Which of the following is NOT a component of an amino acid?
Which of the following is NOT a component of an amino acid?
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