Enzyme Notes P.2

Multiple Choice

Enzymes are...

• Nucleic Acids
• Proteins
• Lipids
• Carbohydrates

Multiple Choice

Which of the following best describes the specificity of enzymes for their substrates?

• Enzymes can bind to any molecule.

• Enzymes are substrate specific and only bind to certain molecules.

• Enzymes only bind to proteins.

• Enzymes can bind to all types of substrates at the same time.

Multiple Choice

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.

Multiple Choice

In the diagram, what is letter A?

• product

• enzyme-substrate complex

• substrate

• active site

Multiple Choice

Letter D...

• enzyme

• active site

• substrate

• products

Multiple Choice

Letter B...

• substrate

• active site

• enzyme

• products

Multiple Choice

Letter C...

• products

• substrate

• enzymes

• active site

Multiple Choice

Letter E...

• active site

• products

• substrate

• enzyme

Multiple Select

Which of the following statements about enzymes are correct? (select 2)

• Enzymes are reusable.

• Each enzyme works best at a certain pH and temperature.

• Enzymes are always destroyed after a reaction.

• Enzymes can only work with one specific substrate.

Multiple Choice

With what 3 letters do enzymes typically end?

• -ose
• -ase
• -ese
• -tic

Multiple Choice

The graph shows how enzymes affect reactions in cells. Which statement best summarizes the information shown in the graph?

• Enzymes increase the energy of the reactants.
• Enzymes decrease the energy level of the products.
• Enzyme decrease the activation energy of the reaction.
• Enzymes reverse the direction of the reaction.

Multiple Choice

Which factors can impact enzyme function?

• Temperature, pH, and inhibitors

• Light, sound, and pressure

• Water, salt, and sugar

• Oxygen, carbon dioxide, and nitrogen

Dropdown

When an enzyme is denatured, its shape is ​​

Select answer

changed.

Multiple Choice

Which image shows the enzyme being denatured?

Multiple Choice

Which line shows that an enzyme works best at a pH pf 9?

• A

• B

• C

Multiple Choice

Which Enzyme works best at a temperature of 37?

• Enzyme A

• Enzyme B

Multiple Choice

Which Enzyme works best at a pH of 7.5?

• Enzyme A

• Enzyme B

Multiple Choice

Which Enzyme works best at a pH of 7?

• Enzyme A

• Enzyme B

Multiple Select

Which line shows that an enzyme that has been denatured at a pH of 9?

• A

• B

• C

Multiple Choice

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

• 15^oC
• 40^oC
• 30^oC
• 35^oC

Multiple Choice

What can we conclude from the graph? At a temperature of 62 ...

• Enzyme activity is highest

• Enzyme activity is low but working

• Enzyme is denatured

Multiple Choice

Which graph shows that an enzyme works best at 100 degrees?

Multiple Choice

9C The graphs show the reaction rate for an enzyme across a range of temperatures and pH.

Based on these data, this enzyme functions best at what temperature and pH?

• Temperature of 27°C and a pH of 4

• Temperature of 37°C and a pH of 6

• Temperature of 40°C and a pH of 8

• Temperature of 50°C and a pH of 10

Multiple Choice

At high temperatures enzyme activity declines because of:

• Denaturation
• Decreased Kinetic Motion
• Increased H-Bonding
• Dissociation of Ionic Compounds

Glue notes in notebook