Foundations Enzymes

Enzymes are considered to be

• Lipids

• Carbohydrate

• Protein

• Nucleic Acid

What is the purpose of an enzyme?

• give permission for the reaction

• raise activation energy

• speed up reactions

• control how many reactions occur

Where do substrates bind on an enzyme?

• voltage-gated channels

• surface receptor

• calcium channels

• active site

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

What is structure A?

• Substrate

• Active site

• Enzyme

• Products

What is structure D?

• Substrate

• Active site

• Enzyme

• Products

What is structure C?

• Substrate

• Active site

• Enzyme

• Products

How do enzymes speed up chemical reaction?

• Increasing activation energy

• Decreasing activation energy

• Increasing deactivation energy

• Decreasing deactivation energy

How do enzymes speed up chemical reaction?

• Increasing activation energy

• Decreasing activation energy

• Increasing deactivation energy

• Decreasing deactivation energy

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

• reusable

• catalyst

• specific

• fragile