Macromolecules and enzymes

This macromolecule carries hereditary information and instructions for building molecules

• carbohydrate

• lipids

• protein

• nucleic acid

Tags

NGSS.HS-LS3-1

Which of the following statements is true about catalysts (enzymes)?

• Catalysts slow down the rate of chemical reactions.

• Enzymes help regulate pH.

• Catalysts are used up during a chemical reaction.

• Catalysts lower the activation energy of a chemical reaction.

An enzyme and substrate can be compared to

• lock and key

• a faucet

• a door hinge

• light switch

What type of macromolecule are enzymes?

• Protein
• Carbohydrate
• Lipid
• 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

Each enzyme only has 1 substrate that will fit its active site.  What is this called?

• reusable
• catalyst
• specific
• fragile

Any substance that is acted upon by an enzyme is called a(n)?

• Coenzyme
• Substrate
• Vitamin
• Polypeptide

After the enzyme and substrate bind together and perform the reaction, what does the substrate become?

• a substrate
• an enzyme
• a product
• an active site

Letter D...

• active site
• enzyme
• substrate
• products

Letter B...

• active site
• enzyme
• substrate
• products