Protein Structure

Part A

Proteins are polymers of _____.

	glycerol
	nucleotides
	amino acids
	hydrocarbons
	CH2O units

Correct

Proteins are polymers of amino acids.

Part B

What type of bond joins the monomers in a protein's primary structure?

	ionic
	hydrophobic
	hydrogen
	peptide
	S - S

Correct

The amino acids of a protein are linked by peptide bonds.

Part C

Which of these illustrates the secondary structure of a protein?

Correct

Alpha helices and beta pleated sheets are characteristic of a protein's secondary structure.

Part D

The secondary structure of a protein results from _____.

	hydrogen bonds
	ionic bonds
	bonds between sulfur atoms
	peptide bonds
	hydrophobic interactions

Correct

Electronegative oxygen and nitrogen atoms leave hydrogen atoms with partial positive charges.

Part E

Tertiary structure is NOT directly dependent on _____.

	peptide bonds
	hydrophobic interactions
	hydrogen bonds
	ionic bonds
	bonds between sulfur atoms

Correct

Peptide bonds link together the amino acids of a protein's primary structure.