Enzymes

With what 3 letters do enzymes typically end?

• -ose
• -ase
• -ese
• -tic

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.

Which of the following conclusions can be drawn from this graph?

• The optimum pH of the enzyme is 6.6.
  
• The optimum pH of the enzyme is 5.8
  
• The enzyme’s activity increases as pH increases 5.0 to 9.0
  
• The enzyme’s activity is greater around pH of 8.0 .
  

In the diagram, what is letter A? 

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

Enzymes are...

• nucleic acids
• proteins
• lipids
• carbohydrates

Tags

NGSS.HS-LS1-1

An enzyme speeds up a chemical reaction in the cell but can only be used once.  True or False? 

• true
• false

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

Enzymes speed up reaction rates by changing...

• Activation Energy
• pH
• Hydrogen Bonds
• Kinetic Energy

Tags

NGSS.HS-PS1-2

NGSS.HS-PS1-5

Which enzyme is most efficient in a basic solution?

• A
• B

Tags

NGSS.HS-PS1-5

The diagram below illustrates a biochemical process that occurs in organisms. What is another name for the substance labeled "catalyst"?

• Enzyme
• inorganic compound
• Hormone
• Antibody

Tags

NGSS.HS-LS1-1