Chapter 5.1 - 5.3 Exit Ticket (Pearson)

Polymers are made of monomer subunits that are joined by what type of bonds?

• ionic bonds

• covalent bonds

• hydrogen bonds

• hydrophobic bonds

A polysaccharide you are studying contains unbranched β glucose molecules and cannot be digested by humans. Which polysaccharide are you studying?

• cellulose

• DNA

• chitin

• starch

• glycogen

Lipids cannot be considered polymers because

• they contain polar covalent bonds.

• their structure includes carbon rings.

• they can be artificially created.

• their monomers are connected via ionic bonds.

• they are not composed of monomer subunits.

Which of the following is a characteristic of all lipids?

• They contain nitrogen.

• They have low energy content.

• They are acidic when mixed with water.

• They do not dissolve well in water.

Sickle-cell disease is caused by a mutation in hemoglobin that changes a charged amino acid to a hydrophobic amino acid. Where in the protein would you expect to find this charged amino acid?

• on the exterior surface of the protein

• in the interior of the protein, away from water

• at the active site, binding oxygen

• at the heme-binding site