Match each model with correct descriptions: (a) Induced fit model, (b) Lock and key model.
________ Active site undergoes changes in shape during reaction.
________ Enzyme is specific only to one substrate.
________ Shape of active site is similar to that of substrate. 
________ Enzyme model that more accurately describes substrate-enzyme interactions.

Match the terms (1) active site, (2) lock-and-key model, and (3) induced-fit model with the following descriptions:

a. the portion of an enzyme where catalytic activity occurs

b. the active site adapts to the shape of a substrate

c. the active site has a rigid shape

Do the amino acids that are in the active site of an enzyme have to be near each other in the enzyme’s primary structure? If no, explain.

The enzyme trypsin catalyzes the breakdown of many structurally diverse proteins in foods. Does the induced-fit or lock-and-key model explain the action of trypsin better? Explain.

The enzyme sucrase catalyzes the hydrolysis of the disaccharide sucrose but not the disaccharide lactose. Does the induced-fit or lock-and-key model explain the action of sucrase better? Explain.

What is the difference between the lock-and-key model of enzyme action and the induced-fit model?

Why is the induced-fit model a more likely model than the lock-and-key model?

Match the terms (1) active site, (2) lock-and-key model, and (3) induced-fit model with each of the following:

a. the portion of an enzyme where catalytic activity occurs

A patient arrives in an emergency department complaining of chest pains. What enzymes would you test for in the blood serum?