Enzymes CH 2.4 (Practice)

Most enzymes are which of the following macromolecules?

• Carbohydrates

• Lipids

• Proteins

• Nucleic acids

True or false, enzymes are catalysts found in living things.

• True

• False

What is the function of a catalyst?

• To increase the rate of chemical reactions

• To decrease the rate of chemical reactions

• To maintain the rate of chemical reactions

• To introduce more cats into the chemical reaction

Tags

NGSS.HS-PS1-5

True, or false, enzymes are permanently altered during chemical reactions.

• True

• False

Tags

NGSS.HS-LS1-7

Without an enzyme present, a chemical reaction will require ____ energy to be activated.

• More

• Less

• The same amount of

The ____ is what temporarily binds to the enzyme and is the reactant in the chemical reaction.

• Enzyme

• Active site

• Substrate

• Enzyme-substrate complex

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.

Tags

NGSS.HS-PS1-4

In the diagram, what is letter A? 

• product
• substrate
• enzyme-substrate complex
• active site

Tags

NGSS.MS-LS1-7

Enzymes speed up reaction rates by changing...

• Activation Energy
• pH
• Hydrogen Bonds
• Kinetic Energy

Tags

NGSS.HS-PS1-4

NGSS.HS-PS1-5

Letter D...

• active site
• enzyme
• substrate
• products

Tags

NGSS.MS-LS1-7