CFA Week 12

Enzymes are ______.

• Lipids

• Carbohydrates

• Proteins

• Nucleic Acids

Tags

HS-LS1-5

Enzymes & Biochemical Reactions

The activation energy needed for a chemical reaction is decreased by the presence of a

• A. catalyst

• B. reactant

• C. product

Tags

HS-LS1-5

Enzymes & Biochemical Reactions

Which phrase best describes an exothermic chemical reaction?

• A. Does not absorb any energy.

• B. Forms products with higher bond energy than reactants.

• C. Is in a state of equilibrium.

• D. Releases more energy than it absorbs.

Tags

Enzymes & Biochemical Reactions

HS-LS1-5

Chemical reactions that absorb more energy than they release are considered to be

• A. exothermic

• B. catalyzed

• C. endothermic.

Tags

HS-LS1-5

Enzymes & Biochemical Reactions

If the activation energy of a biochemical reaction is lowered, then

• A. the reaction will happen faster.

• B. the reaction will happen more slowly.

• C. more energy will need to be absorbed.

• D. the rate of the reaction will be unaffected.

Tags

HS-LS1-5

Enzymes & Biochemical Reactions

The molecule that an enzyme binds to is known as its

• A. substrate

• B. monomer

• C. polymer

Tags

Enzymes & Biochemical Reactions

HS-LS1-5

What happens to an enzyme when it is denatured?

• Activation energy is lowered.
• It becomes stronger.
• It loses its shape.
• Activation energy is raised.

Tags

HS-LS1-5

Enzymes & Biochemical Reactions

Which structures pictured would make up an ATP molecule?

• 
• 
• 

Tags

HS-LS1-6

ATP

Which structures pictured would make up an ADP molecule?

• 
• 
• 

Tags

HS-LS1-6

ATP

Which phrase best describes the function of the ATP molecule?

• A. absorbs energy

• B. increases energy

• C. stores energy

• D. creates energy

Tags

HS-LS1-6

ATP