AP Biology Unit 1.5: Protein Structure

Which of the following terms refers to a linear sequence of amino acids in a protein that are linked together by peptide bonds?

• Primary

• Secondary

• Tertiary

• Quaternary

The chain of amino acids folds and coils on itself forming alpha helices and beta pleated sheets.

• Primary Structure

• Secondary Structure

• Tertiary Structure

• Quaternary Structure

The entire polypeptide folds back on itself many times and forms a globular, three-dimensional structure.

• Primary Structure

• Secondary Structure

• Tertiary Structure

• Quaternary Structure

Two or more polypeptides attached together and work as one unit

• Primary Structure

• Secondary Structure

• Tertiary Structure

• Quaternary Structure

What is a peptide bond?

• Covalent bond that holds two amino acids together.

• A bond that holds hydrogen and oxygen molecules together.

• A bond that holds the phosphate group of one amino acid and a sugar of a neighboring amino acid.

• Hydrogen bond that holds two amino acids together.

Tags

NGSS.HS-LS1-6

How many different amino acids are there?

• 15
• 20
• 25
• 30

Tags

NGSS.HS-LS1-6

What is the monomer of proteins?

• amino acids
• polypeptides
• nucleotides
• monosaccharides

Tags

NGSS.HS-LS1-6

The diagram shows a bond forming between two amino acids. What is the name of this reaction?

• Dehydration/Condensation

• Hydrolysis

• Pepysis

• Oxidation

Tags

NGSS.HS-LS1-1

Refers to the complex, three-dimensional structure of a single amino acid chain in a protein molecule.

• tertiary structure

• primary structure

• secondary structure

• fibrous proteins

Tags

NGSS.HS-LS1-1

The name of the initial chain of monomers in a protein is called.....

• polypeptide
• polysaccharide
• polyester
• polynucleotide

Tags

NGSS.HS-LS1-6

NGSS.HS-LS1-1