Chapter 4 Quiz Answers - Cell Biology I Lecture

Proteins are made of 20 primary amino acids. Each amino acid has a unique side chain that gives the protein unique properties and affects how the protein folds and interacts with other molecules.

Which of the following amino acids are all polar amino acids?

Arginine, glutamic acid, asparagine, glutamine

Protein structure determines

Function

Protein structure is classified into primary, secondary, tertiarty, and quaternary structure.

Which of the following is matched correctly with the types of bonds that are primarily involved in forming the structure?

Which covalent modification to a protein’s side chains creates docking sites for other proteins?

Phosphorylation

The primary structure of a protein is composed of amino acids joined by what covalent bond?

Peptide bond

What kind of proteins help other proteins to fold into their proper conformation?

Chaperone proteins

T/F?

Allosteric enzymes can have multiple binding sites.

True

T/F?

Cofactors are organic molecules that are necessary for certain proteins to function.

False

T/F?

Disulfide bonds are formed between two cysteine side chains.

True

T/F?

Enzymes can be regulated by both positive and negative feedback inhibition.

True