AP Biology Enzymes

What type of macromolecule are enzymes?

• Protein
• Carbohydrate
• Lipid
• Nucleic Acid

Enzymes need certain environmental conditions in order to function properly.  What happens when enzymes are heated to a high temperature?

• they die
• they denature
• they change their amino acid sequence
• they work better

Tags

NGSS.HS-PS1-5

Which of the following correctly describes how enzymes work?  

• they lower the energy of the reactants to increase the rxn rate
• they supply energy to the reaction to increase the rxn rate
• they lower the energy of the products to increase the rxn rate
• they lower the activation energy of the reaction to increase the rxn rate

Tags

NGSS.HS-PS1-4

Which enzyme breaks down hydrogen peroxide to water and oxygen gas?

• sucrase
• lactase
• catalase
• peroxidase

Enzymes are made up of these repeating monomers.

• monosaccharides
• amino acids
• nucleotides
• phospholipids

Tags

NGSS.HS-LS1-6

The part of the enzyme that the substrate bonds to is called the _____.

• active site
• activation energy
• bond site
• peptide bond

Which of the following is not a job of a protein

• Act as hormones and enzymes
• Do much of the work in cells and transport materials
• Build tissues and muscles 
• store and transmit genetic information 

What is a substance called if it speeds up a chemical reaction?

• reusable
• catalyst
• specific
• fragile

What 3 letters do enzymes typically end in?

• -ose
• -ase
• -ese
• -tic

Changes in pH and temperature can damage an enzymes active site.  What is this called?

• reusable
• catalyst
• specific
• denature