6.2

Question 1

Discuss the specificity of enzymes.

Answer 1

• Enzymes only bind specific substrates to drive specific reactions
• Most are proteins, but some can be RNA too

Question 2

Explain how enzymes bind to their substrates.

Answer 2

• Substrate binds to the active site of the enzyme, forming an enzyme-substrate complex.
• Bonds in substrate are broken easier when bound to an enzyme

Question 3

List the factors that influence the rate of enzyme-catalyzed reactions.

Answer 3

• Enzymes have an optimal temperature and optimal pH
• Enzyme inhibitors can block enzyme function
   Competitive inhibitors bind to an allosteric site
• Changes shape of active site
   Allosteric enzymes function by binding allosteric inhibitors and activators to place them in an active or inactive form