Enzymes Practice

What are enzymes?

• Proteins that speed up chemical reactions

• Carbohydrates that store energy

• Lipids that form cell membranes

• Nucleic acids that store genetic information

What is a catalyst?

• A substance that speeds up reactions

• A substance that slows down reactions

• A substance that stops reactions

• A substance that changes color

Tags

NGSS.HS-PS1-5

What enzyme breaks down lactose?

• Lactase

• Amylase

• Protease

• Lipase

What is the active site of an enzyme?

• The part that binds to the substrate

• The part that releases energy

• The part that stores information

• The part that changes color

What happens when the reaction is complete?

• Products release from the active site

• Enzymes are destroyed

• Substrates are created

• Energy is absorbed

What happens if there is no substrate to interact with?

• Reactions stop

• Reactions speed up

• Reactions slow down

• Reactions become more complex

What is the relationship between enzymes and substrates?

• Enzymes are specific to their substrates

• Enzymes can bind to any substrate

• Enzymes destroy substrates

• Enzymes create substrates

What is the effect of adding more enzyme to a reaction?

• The reaction will continue

• The reaction will stop

• The reaction will slow down

• The reaction will reverse

Tags

NGSS.HS-PS1-5

Why are enzymes essential to life processes?

• They aid in digestion

• They store energy

• They build cell walls

• They transport oxygen

Tags

NGSS.HS-LS1-7

What is the role of the active site in an enzyme?

• It matches the substrate

• It stores energy

• It changes color

• It releases products