Module 2 - Enzymes

Question 1

What are enzymes

Answer 1

Biological catalysts which speed up chemical reactions

Question 2

What are intracellular enzymes

Answer 2

Enzymes which work within cells

Question 3

What are extracellular enzymes

Answer 3

Enzymes which work outside cells

Question 4

Give an examples of intracellular enzyme and it’s function

Answer 4

Catalase

Breaks down hydrogen peroxide into oxygen and water

Question 5

Give an example of an extracellular enzyme

Answer 5

Trypsin

Catalyses hydrolysis peptide bonds turning bigger ones into smaller ones

Question 6

What is a competitive inhibitor

Answer 6

Molecules which have the same shape as that of substrate molecules which compete to fit into the active site but no reaction actually takes place

Question 7

What is a non competitive inhibitor

Answer 7

A molecule which binds to an enzyme away from the active site therefore changing the shape of the active site

Question 8

What affects wether inhibitors are reverie or not

Answer 8

If they are made up of strong Coventry bonds they are irreversible however if the have weak hydrogen bonds they are revieesible