ENZIM

Enzymes are...

• nucleic acids
• proteins
• lipids
• carbohydrates

In the diagram, what is letter A? 

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

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

• reusable
• catalyst
• specific
• fragile

What is the function of an enzyme?

• enzymes break themselves into small pieces
• enzymes slow down chemical reactions
• enzymes speed up chemical reactions
• enzymes combine products to form reactants 

The "lock and key hypothesis" attempts to explain the mechanism of?

• Vacuole formation
• Pinocytosis
• Sharing of electrons
• Enzyme specificity 

Venus flytraps produce chemicals that break down insects into usable compounds. These chemicals are most likely:

• Hormones
• Lipids
• Enzymes
• Carbohydrates

What happens when enzymes are heated to a high temperature?

• The enzymes die.
• The shapes of the enzyme are altered or denatured
• The enzymes' amino acid sequence changes.
• The enzymes remain the same

What is indicated by letter A?

• enzyme
• product
• substrate
• active site

How do competitive inhibitors affect enzymes?

• It binds to the active site, blocking the substrate
• It changes the shape of the enzyme
• It increases the activation energy
• It decreases the activation energy

Letter D...

• active site
• enzyme
• substrate
• products