Proteins And Enzymes - Unit 1

Question 1

Region on an enzyme molecule to which the substrate molecule becomes attached during the reaction

Answer 1

Active site

Question 2

Enzyme made by plant and animal cells that promotes the breakdown of starch to maltose

Answer 2

Amylase

Question 3

Chemical reagent used to test for simple sugars

Answer 3

Benedict’s solution

Question 4

Enzyme that promotes the breakdown of hydrogen peroxide to oxygen and water

Answer 4

Catalase

Question 5

Chemical that increases the rate of a chemical reaction and remains unaltered

Answer 5

Catalyst

Question 6

Copy of an experiment in which all factors are kept exactly the same except the one being investigated in the original experiment

Answer 6

Control

Question 7

Term used to describe the state of an enzyme that has lost its activity (e.g due to excess heat)

Answer 7

Denatured

Question 8

Chemical breakdown of large complex molecules to simpler ones

Answer 8

Degradation

Question 9

Substance formed as a result of an enzyme acting on its substrate

Answer 9

Product

Question 10

Protein made by living cells that acts as a biological catalyst

Answer 10

Enzyme

Question 11

Term used to describe the condition at which an enzyme works best

Answer 11

Optimum

Question 12

Enzyme present in potato cells that promotes the synthesis of starch from glucose-1-phosphate

Answer 12

Phosphorylase

Question 13

Substance upon which an enzyme acts

Answer 13

Substrate

Question 14

Building-up of large complex molecules from simpler ones by an enzyme-controlled reactions

Answer 14

Synthesis

Question 15

Chemical reagent used to test for presence of starch

Answer 15

Iodine solution