Levels of protein structure

Question 1

Explain the primary structure of a protein

Answer 1

• amino acids bonded by peptide bonds is the primary structure
• The DNA of a cell determines what amino acids are in the sequence
• The sequence of amino acids can affect function of the protein

Question 2

Explain the secondary structure of a protein

Answer 2

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Question 3

What is a peptide bond?

Answer 3

• It is a covalent bond
• hydroxyl is lost from a carboxylic group of one amino acid,
• a hydrogen atom is lost from an amine group of another amino acid
• Water is released because this is a condensation reaction