enzyme

What happens to an enzyme when it denatures?

• The activation energy of the reaction is doubled.

• The activation energy of the reaction is lowered.

• It's optimal conditions for temperature of the enzyme are doubled.

• The shape of the enzyme molecule is changed.

Most enzymes are composed of .....

• Lipids

• Carbohydrates

• Proteins

• Nucleic Acids

Tags

NGSS.HS-LS1-6

Enzymes in your body probably work best at which of the following temperatures>

• 25^oC

• 98^oC

• 37^oC

• 210^oC

In an Exergonic reaction, heat is ________.

• Absorbed
• Created
• Destroyed
• Released

In an Endergonic reaction, heat is ________.

• Released 
• Absorbed
• Created
• Destroyed

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

With what 3 letters do enzymes typically end?

• -ose
• -ase
• -ese
• -tic

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 .
  

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

• 15^oC
• 40^oC
• 30^oC
• 35^oC

Tags

NGSS.HS-PS1-5