Biochem and Cell Bio

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.

Tags

NGSS.HS-PS1-5

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

Tags

NGSS.HS-LS1-1

What is the purpose  of an enzyme?

• give permission for the reaction
• raise activation energy
• speed up reactions
• control how many reactions occur

Letter D...

• active site
• enzyme
• substrate
• products

Tags

NGSS.HS-PS1-2

Letter C...

• active site
• enzyme
• substrate
• products

Based on the graph, what is the optimal temperature for this enzyme? 

• 15^oC
• 40^oC
• 30^oC
• 35^oC

Changes in pH and temperature can ___________________ an enzyme which causes it to lose its shape and affects its function.

• puncture

• denature

• double

• delete

Which macromolecule is used as our main source of energy?

• Lipids/Fats

• Nucleic Acids

• Proteins

• Carbohydrates

Tags

NGSS.MS-LS1-7