U2: Macromolecules Quiz

Which type of macromolecule stores genetic information?

• Amino acids
• Fatty acids
• Nucleic acids
• None of the above

__________________ are the building blocks, or monomers, that make up proteins.

• Nucleic acids
• Amino acids
• Fatty acids
• Lipids

How many amino acids are in the composition of human beings?

• 20
• 32
• 35
• 23

Amino acid is to protein as

• a. fat is to lipid.
• b. DNA is to RNA.
• c. sugar is to fat.
• d. monosaccharide is to carbohydrate.

The energy needed to get a reaction started is the:

• a. adhesion energy.
• b. activation energy.
• c. cohesion energy.
• d. chemical energy.

Which of the following statements about enzymes is NOT true?

• a. Enzymes work best at a specified pH.
• b. All enzymes have the same shape as their substrates.
• c. Enzymes are proteins.
• d. The shape of an enzyme allows it to do its job.

Which of the following is NOT a polymer?

• glucose
• starch
• cellulose
• DNA

Starch and sugar are examples of which macromolecule group?

• carbohydrates
• lipids
• nucleic acid
• protein

What kinds of atoms are bonded to carbon atoms in the molecule shown in Figure 2–2?

• a. helium, oxygen, and nitrogen
• b. calcium, hydrogen, and oxygen
• c. hydrogen, oxygen, and nitrogen
• d. helium, carbon, and sodium

Pictured is the line drawing of the amino acid Isoleucine. How many Carbons are in isoleucine?

• 6
• 4
• 3
• 2