Enzymes Practice

Enzymes are an example of

• Lipids

• Carbohydrate

• Protein

• Nucleic Acid

Tags

NGSS.HS-LS1-1

What is the purpose  of an enzyme?

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

Enzymes are capable of increasing the rate of a chemical reaction within a living cell.  Enzymes accomplish this through which of the following means?

• reducing the number of products   
• reducing the activation energy
• increasing the temperature of the cell
• increasing the concentration of reactants 

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

• true
• false

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

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

• 15^oC
• 40^oC
• 30^oC
• 35^oC

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

• reusable
• catalyst
• specific
• fragile

Enzymes are...

• nucleic acids
• proteins
• lipids
• carbohydrates

Tags

NGSS.HS-LS1-1

Which macromolecule(s) have the elements Carbon, Hydrogen, and Oxygen? 

• Proteins & Nucleic Acids
• Carbohydrates & Lipids
• Lipids & Proteins
• Carbohydrates & Nucleic Acids

Tags

NGSS.HS-LS1-1

NGSS.HS-LS1-6

Where does the reaction between enzyme and substrate take place?

• Active site

• substrate

• product

• activator