BIO UNIT 3

What happens to an enzyme when pH and temperature increase?

What substrate does lactase break down?

What do competitive inhibitors do?

• Alter the shape of the enzyme to stop its substrate from binding

• Denature the enzyme and shut it off from all processes

• Prevent the substrate from binding to the enzyme, reducing productivity

Where does the substrate bind to an enzyme?

What is sometimes required for an enzyme to bind to its substrate

Answer explanation

They help facilitate the reaction process and turn on the inactive enzyme so it can undergo reactions and produce products

A single unit , functional enzyme is produced from which protein structure?

HINT: It gives the molecules 3D rounded shape which gives it functionality and allows substrate. To bind to its active site.

• Tertiary

• Quaternary

• Secondary

• Primary

Answer explanation

This structure

Occurs when the protein structure of an enzyme is disrupted and causes the enzyme to lose functionality

• Denaturation

• Feedback inhibition

• Apoptosis

• Catalyzation

Pepsin functions at a pH of 2!

Where is it located

• Heart

• Blood

• Large intestine

• Stomach

Answer explanation

The stomach is highly acidic, substances with a pH lower than 7 are highly acidic

The enzyme’s active site and the substrate are ——— charged.

Enzymes are classified as ……..

• Proteins

• Nucleic Acids

• Carbohydrates

• Lipids