Enzymes

Enzymes are

• nucleic acids
• proteins
• lipids
• carbohydrates

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

• substrate
• product
• codon
• none of the above

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

• 15 C
• 40 C
• 30 C

Tags

NGSS.HS-PS1-5

What happens when enzymes are heated to a high temperature?

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

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 .
  

Which line represents an enzyme-catalyzed reaction? 

• Line 1
• Line 2

Tags

NGSS.HS-PS1-4

The "lock and key hypothesis" attempts to explain the mechanism of?

• Vacuole formation
• Pinocytosis
• Sharing of electrons
• Enzyme specificity 

What is a Cataylst?

• A substance that speeds up a rate of chemical reaction.
• Molecules that make enzymes work harder and faster 
• reaction of an enzyme
• A substance that slows down a rate of chemical reaction.

Tags

NGSS.HS-PS1-5

What is the optimal pH of enzyme A?

• 8

• 2

• 5.7-10

• 10

Tags

NGSS.HS-PS1-5

With what 3 letters do enzymes typically end?

• -ose
• -ase
• -ese
• -tic