Enzymes

Question 1

Metabolism

Answer 1

Metabolism is the sum of all the chemical reactions in an organism

Question 2

Enzymes

Answer 2

Are biological catalysts made from protein. Made from a chain of amino acids folded into a 3D shape

Question 3

Examples of catabolic enzymes

Answer 3

Pepin-digests proteins into peptides
Amylase- digests starch into maltose

Question 4

Examples of anabolic enzymes

Answer 4

Potato phosphorglase- makes starch from glycerol
DNA polymerase- makes DNA from its building blocks

Question 5

Specificity

Answer 5

Refers to the enzyme ability to react with only one substrate

Question 6

Optimum activity

Answer 6

Refers to the conditions under an enzyme works best

Question 7

Substrate

Answer 7

Substance upon which the enzyme acts

Question 8

Product

Answer 8

Substance that results from the action of an enzyme

Question 9

Denaturation

Answer 9

A denatured enzyme has lost its shape and can no longer carry out its functions

Question 10

Immobilised Enzymes

Answer 10

Immobilised enzymes are enzymes that are attached or trapped in an inert insoluble material 

Question 11

Three ways in which enzymes are immobilised

Answer 11

Attached to each other
Attach to insoluble support
Enclosed within a membrane or gel

Question 12

Advantages of immobilised enzymes

Answer 12

Immobilised enzymes are more stable
Efficiency of the enzyme is unaffected
Who is recovery of product an enzyme at the end of the reaction?