Enzymes/Macromolecules

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

• reusable
• catalyst
• specific
• fragile

The graph shows how enzymes affect reactions in cells. Which statement best summarizes the information shown in the graph?

• Enzymes increase the energy of the reactants.
• Enzymes decrease the energy level of the products.
• Enzyme decrease the activation energy of the reaction.
• Enzymes reverse the direction of the reaction.

Tags

NGSS.MS-PS1-2

Enzymes are...

• nucleic acids
• proteins
• lipids
• carbohydrates

Tags

NGSS.MS-LS1-7

What is the function of an enzyme?

• enzymes break themselves into small pieces
• enzymes slow down chemical reactions
• enzymes speed up chemical reactions
• enzymes combine products to form reactants 

Tags

NGSS.MS-PS1-2

Letter D...

• active site
• enzyme
• substrate
• products

Tags

NGSS.MS-LS1-7

Letter B...

• active site
• enzyme
• substrate
• products

Tags

NGSS.MS-LS1-7

NGSS.MS-PS1-2

Letter C...

• active site
• enzymes
• substrate
• products

Tags

NGSS.MS-LS1-7

NGSS.MS-PS1-2

Letter E...

• active site
• enzyme
• substrate
• products

Tags

NGSS.MS-LS1-7

Any substance that is acted upon by an enzyme is called a(n)?

• Coenzyme
• Substrate
• Vitamin
• Polypeptide

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

NGSS.MS-LS1-2