3. Amino Acids

Which of the following amino acids would be positively charged at physiological pH (approximately 7.4)?

Proteins consist of a chain of some combination of how many unique amino acids?

Which component of an amino acid can be utilized as an energy source during the cellular respiration pathway after deamination?

Compared to carbohydrates and lipids, which element is unique to protein-containing molecules?

Which of the following statements about glycine is true?

Which of the following functions requires thiamin (vitamin B\(_1\)) as a coenzyme?

Amino acids are monomers for which class of biochemicals?

Which of the following pairs of amino acids can form hydrogen bonds between their side-chain groups?

How do the R groups (side chains) of amino acids contribute to the overall structure of a protein?

Which of the following statements about amino acids is correct?

Which molecule is responsible for bringing amino acids to the ribosome during protein synthesis?

Which functional groups are directly involved in the formation of peptide bonds between amino acids?

Alanine and leucine are examples of ______ amino acids.

1. Which of the following best describes the term 'peptide chain' in the context of amino acid groups?

All of the following are components that make up a standard amino acid except: