Midterm Review Chapter 6

Protein is composed of which of the following?

• amino acids

• stomach acids

• nitric acids

• nucleic acids

• hydrochloric acid

Carbohydrates and lipids are made up of carbon, oxygen, and hydrogen. Protein is made of those same molecules plus which of the following?

• iodine

• chloride

• magnesium

• nitrogen

• thiamin

Amino acids differ from each other in what way?

• the side chain

• the center molecule

• the number of carbon molecules

• the number of hydrogen molecules

• the group they belong to

Which of the following options does not fit with the rest when considering polarity?

• glutamine

• glycine

• alanine

• phenylalanine

• methionine

An example of a two-dimensional structure is which of the following?

• helix

• branch

• quaternary

• fibrous

• coil

An example of a quaternary structure is which of the following?

• polypeptide bonds

• alpha helix

• myoglobin

• hemoglobin

• sheet protein

Nonessential amino acids are those that are:

• not made by the body

• conditional amino acids

• polar amino acids

• made by the body

• acidic amino acids

What is the function of peptide bonds?

• to hold together amino acid monomers

• to hold together carbohydrate molecules

• to hold together lipid molecules

• to break apart amino acids

• to break apart carbohydrate molecules

What factors can cause denaturation?

• heat

• acid

• agitation

• All of the above are true.

• None of the above are true.

Aggregate means which of the following?

• form a long chain

• form a network

• form a square

• form molecular bonds

• form peptide bonds