Enzyme Review/Check-In

Which reaction uses less energy to progress?

• The reaction with an enzyme

• The reaction with a higher activation energy
• The reaction without an enzyme

• The reaction with a larger enthalpy change

Enzymes are...

• nucleic acids
• proteins
• lipids
• carbohydrates

Tags

NGSS.HS-LS1-1

NGSS.HS-LS1-6

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

• reusable
• catalyst
• specific
• fragile

What will most likely happen if an appropriate enzyme is added to a chemical reaction? 

• The reaction rate will increase.
• The equilibrium of the reaction will be maintained. 
• The reaction rate will decrease.
• The reaction will stop. 

Tags

NGSS.HS-PS1-5

Which of the following best explains why enzymes are necessary for many cellular reactions?

• Enzymes supply the oxygen necessary for the reactions
•  Enzymes change reactants from solid to liquids during the reactions.
• The reactions take up too much space in the cell if the enzymes are missing.
• The reactions are too slow to meet the needs of the cell if enzymes are missing. 

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

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 .
  

Click on the temperature that this enzyme is having optimum activity.

Enzymes are...

• nucleic acids
• proteins
• lipids
• carbohydrates

Tags

NGSS.HS-LS1-1

NGSS.HS-LS1-6

Enzyme can be used again and again

• True

• False