Enzymes

What is the purpose  of an enzyme?

• give permission for the reaction
• raise activation energy
• speed up reactions
• control how many reactions occur

Letter D...

• active site
• enzyme
• substrate
• products

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

• reusable
• catalyst
• specific
• fragile

Based on the graph, what is the optimal temperature for this enzyme? 

• 15^oC
• 40^oC
• 30^oC
• 35^oC

Letter B...

• active site
• enzyme
• substrate
• products

Letter E...

• active site
• enzyme
• substrate
• products

In the diagram, what is letter A? 

• product
• substrate
• enzyme-substrate complex
• active site

Every enzyme has a optimal temperature and pH. True or False?

• True 
• False

Enzymes are an example of

• Lipids

• Carbohydrate

• Protein

• Nucleic Acid

What happens when enzymes are heated to a high temperature?

• The enzymes die.
• The shapes of the enzyme are altered denature
• The enzymes' amino acid sequence changes.
• The enzymes remain the same