Unit 1: Biochemistry Test Review

Which macromolecule is shown here?

• Nucleic Acid

• Carbohydrate

• Lipid

• Protein

Which macromolecule is shown here?

• Protein

• Lipid

• Carbohydrate

• Nucleic Acid

Which monomer is correctly matched to its macromolecule?

• carbohydrate - monosaccharide

• lipid - amino acid

• protein - nucleotide

• nucleic acid - fatty acid

Phospholipid heads are __, whereas the tails are __

• hydrophilic/ hydrophobic

• hydrophobic/ hydrophilic

• both hydrophilic

• both hydrophobic

What happens if an enzyme is denatured?

• it no longer fits its substrate and no longer works

• it no longer fits its substrate but it still works

• it will change shape again to fit the substrate

• it will cause the substrate to change shape

Atoms that give away or take in electrons for __ bonds

• ionic

• covalent

• hydrogen

• peptide

Tags

NGSS.HS-PS1-1

Enzymes work by

• speeding up reactions by lowering activation energy

• speeding up reactions by raising activation energy

• slowing down reactions by lowering activation energy

• slowing down reactions by raising activation energy

Animals store extra carbohydrates as __, whereas plants store it as __

• glycogen/starch

• starch/glycogen

• starch/cellulose

• cellulose/glycogen

Which of these is the correct formula for glucose?

• C6H12O6

• C6HC012

• C12H22O11

• C12H6O12

Which of these correctly describes hydrolysis

• Water breaks down polymers into monomers

• Water breaks down monomers into polymers

• Water is used to join monomers into polymers

• Polymers are joined to make monomers and lose water