Module 6: Unit 1-2

Question 1

With the lock and key analogy what is the key and what lock.

Answer 1

Enzymes have an active site that is complementary tot he substrate

Substrate - key

Active site - lock

Question 2

How do enzymes function?

Answer 2

Enzymes = biocatalysts

• increase reaction rate (V0) by lowering the activation energy of a chemical reaction

Question 3

What is the activation energy?

Answer 3

Is the energy that has to be overcome for a substrate to be converted to a product.

EX: breaking apart of surprise into fructose and glucose requires a huge amount of energy. Enzymes have the ability of lowering that activation energy and, thus INCREASE the probability of that action to occur

Question 4

What happens when there is more enzyme present?

Answer 4

The faster the reaction occurs or the faster product is formed.

Question 5

What factors impact enzyme velocity?

What is the driving factor for enzymes?

What is the common thread in changing reaction rates?

Answer 5

• pH
• Temperature

Driving factor is to get the body back to homeostasis

—> Common thread is conformation change