Lock and Key Model

The induced fit model differs to the lock and key model in that...

• The induced fit model states that the active site of the enzyme changes shape slight to fit the shape of the substrate

• The induced fit model states that the active site of the substrate changes shape slight to fit the shape of the enzyme

• The induced fit model states that the allosteric site of the enzyme changes shape slight to fit the shape of the substrate

• The induced fit model states that the allosteric site of the substrate changes shape slight to fit the shape of the enzyme

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

• Vacuole formation

• Pinocytosis

• Sharing of electrons

• Enzyme are specific to a substrate

If the substrate does fit, the enzyme will not work on it. What is the name of this model?

• Lock and chest

• Door and key

• Lock and Key

• Key and box

The enzyme is a specific shape, this means only ___ substrate will fit into it.

• 1

• 2

• 3

• 4

Which of the following best describes the lock and key model of enzyme action?

• The enzyme changes shape to fit the substrate

• The substrate changes shape to fit the enzyme

• The enzyme and substrate fit together without changing shape

• The enzyme and substrate both change shape to fit each other

In the lock and key model, what is the 'key'?

• The enzyme

• The substrate

• The active site

• The allosteric site

What does the lock and key model explain about enzymes?

• Enzymes can bind to any substrate

• Enzymes are specific to one substrate

• Enzymes can change their active site

• Enzymes can be used multiple times

Which statement is true about the lock and key model?

• The enzyme is flexible and adapts to the substrate

• The substrate is flexible and adapts to the enzyme

• The enzyme and substrate are rigid and fit perfectly

• The enzyme and substrate are both flexible

How does the lock and key model differ from the induced fit model?

• The lock and key model involves a flexible enzyme

• The lock and key model involves a rigid enzyme

• The lock and key model involves a flexible substrate

• The lock and key model involves a rigid substrate

In the lock and key model, what role does the active site play?

• It changes shape to fit the substrate

• It binds to any substrate

• It is specific to one substrate

• It is not involved in binding