Macromolecules.

The general formula for a carbohydrate is

• C_n+m(H2O)_m.

• C_n(H2O)_n.

• C_n+2m(H2O)_m+1.

• C_n(H2O)_m+n.

The monomer of both starch and cellulose is

• an amino acid.

• glycogen.

• sucrose.

• glucose.

What type of biological molecule provides the main source of human food energy?

• cholesterol

• amino acid

• carbohydrate

• protein

The part of a fat molecule that allows it to interact with polar molecules is the

• hydrophobic end.

• hydrophilic end.

• amino end.

• All of the above

Saponifiable lipids that form most of a cell's membrane are

• triglycerides.

• wax.

• phospholipids.

• spingolipids.

In order for the acid-base reaction called saponification to occur, what must react?

• fats and water

• carbohydrates and water

• proteins and water

• lipids and NaOH

Which of these compounds is a product of protein synthesis?

• hydrogen

• water

• carbon dioxide

• oxygen

The characteristic functional groups of a protein are

• –OH and –NH2.

• –COOH and –CH2.

• –COOH and –NH2.

• –COOH and –SH.

When your body digests starch, an end product of the reaction is

• cellulose.

• maltose.

• glucose.

• a disaccharide.

Waxes and fats are classified as

• triglycerides.

• lipids.

• carbohydrates.

• All of the above