Protein structure

which of the following terms refers to the order in which amino acids are linked together in a protein.

• Primary

• Secondary

• Tertiary

• Quaternary

The entire polypeptide forms a three-dimensional structure

• Primary

• Secondary

• Tertiary

• Quaternary

Two or more polypeptides bond together and work as one unit

• Primary

• Secondary

• Tertiary

• Quaternary

What is a peptide bond?

• 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 nucleotide and a sugar of a neighboring nucleotide.

• A bond that is formed by the attraction of opposite charges

How many different amino acids are commonly used by living things?

• 15

• 20

• 25

• 30

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

• Condensation

• Hydrolysis

• Pepysis

• Oxidation

Held together by interactions between different R groups within a polypeptide chain.

• tertiary structure

• primary structure

• secondary structure

• fibrous proteins

What is the monomer of a protein?

• amino acid
• monosaccharide
• fatty acid
• nucleic acid

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

• polypeptide
• polysaccharide
• polyester
• polynucleotide

The two types of folding in the secondary structure are.....

• alpha-helix & beta-pleated sheets
• polypeptide & nucleotide
• globular & fibrous