Enzyme Review

Enzymes are considered to be 

• Lipids
• Carbohydrate
• Protein
• Nucleic Acid

Tags

NGSS.MS-LS1-7

Where do substrates bind on an enzyme?

• voltage-gated channels
• surface receptor
• calcium channels
• active site

What is the purpose  of an enzyme?

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

Tags

NGSS.MS-LS1-7

How do enzymes speed up chemical reaction?

• Increasing activation energy
• Decreasing activation energy
• Increasing deactivation energy
• Decreasing deactivation energy

Each enzyme only has 1 substrate that will fit its active site.  What is this called?

• reusable
• catalyst
• specific
• fragile

Once a new product leaves an enzyme, the enzyme is unchanged and ready for the next substrate.  What is this called?

• reusable
• catalyst
• specific
• fragile

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 .
  

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

• Coenzyme
• Substrate
• Vitamin
• Polypeptide

Based on the graph, what temperature does this enzyme work best? 

• 15 C
• 40 C
• 30 C

Tags

NGSS.HS-PS1-5

Which of the following binds to the active site of an enzyme? 

• substrate
• product
• codon
• none of the above