1.7- Enzyme Action

Question 1

reactants and products of:
lactase

Answer 1

reactants- lactose
products- galactose + glucose

Question 2

reactants and products of:
catalase

Answer 2

reactants-hydrogen peroxide
products- water and oxygen

Question 3

reactants and products of:
glycogen synthase

Answer 3

reactants- alpha glucose
products- glycogen

Question 4

reactants and products of:
ATP-ase

Answer 4

reactants-ATP
products- ADP +Pi (Phosphate)

Question 5

describe the induced fit model

Answer 5

When the enzyme and substrate bind they form
an enzyme substrate complex, and the structure of the enzyme is altered so that the active
site of the enzyme fits around the substrate

Question 6

How do enzymes work?

Answer 6

increase rate of reaction by lowering activation energy

Question 7

Why do we need enzymes?

Answer 7

all biochemical pathways in organisms are ultimately controlled by enzymes

Question 8

Name 6 factors that affect the rate of enzyme controlled reactions

Answer 8

temperature
pH
enzyme concentration
substrate concentration
concentration of competitive inhibitors
concentration of non competitive inhibitors