Enzymes

Question 1

Why is catalase important to break down

Answer 1

Its toxic but products are harmless

Question 2

Explaining concentrations

Answer 2

Mutations in genes

Question 3

Evaluate

Answer 3

Yes and no

Correlation isn’t proof of causation
Sample size
Statistical test
Bias
Overlap

Question 4

Affects on plasma membrane that increases permeability

Answer 4

Damage to membrane proteins and disrupt phospholipid bilayer

Question 5

Experiment to test inhibitors

Answer 5

Different concentration with and without inhibitor

Question 6

What happens to bonds with enzymes

Answer 6

Put under strain

Question 7

Why is high resolution good

Answer 7

Lowest uncertain for percentage error

Question 8

Protein synthesis increases respiration

Answer 8

Because we need atp for energy

Question 9

How to produce 8au from 20au

Answer 9

Mix distilled water so 3:2 as 8/20

Question 10

Why is plant better than animal practicals

Answer 10

Less chance of ethical objection and easier to control surface areas

Question 11

Answer 11

Question 12

Coenzyme

Answer 12

Are not permanently bound to enzymes

Question 13

Temperature

Answer 13

Inhibits pathogenic bafteria

Question 14

How to tell if it’s competitive or non competitive

Answer 14

If it plateaus

Question 15

Why do you need ammonia

Answer 15

Nitrogen for producing amino acid

Question 16

Lactic acid extends life of yogurt by

Answer 16

Lowering ph below optimal for bacteria enzymes

Question 17

Cell death

Answer 17

Apoptosis

Question 18

Cofactor for carbonic annydrase

Answer 18

Zn 2+

Question 19

How do competitive inhibitors work

Answer 19

Bind to active sites so block them preventing substrate from entering active site. This is temporary

Question 20

Why is initial rate higher

Answer 20

Concentration of substrate is high so there’s a high chance of substrate entering the active site

Question 21

Fungal enzymes

Answer 21

Diffuse away and are extracellular

Question 22

Good improvements for validity

Answer 22

Closer temperature intervals for accurate estimates of whatever. Control group with no whatever to allow comparison

Question 23

Students T Test

Answer 23

Compares means

Question 24

Why’s 60 diff to 37, and why is 25 diff to 35

Answer 24

At 60 there’s more kinetic energy so more successful collision and thus more esc formed. The initial rate will be faster than 37 but enzymes eventually denature so less overall product formed.

At 25, the rate of reaction is slower than 37 and not all of the substrate will react

Question 25

Rate of reaction

Answer 25

1/time

Question 26

Standard deviation shows

Answer 26

Spread around mean. If it’s small then high repeatability

Question 27

Why is a white background better

Answer 27

Easier to see colour change so less subjective

Question 28

When concluded from a table

Answer 28

It can be a range

Question 29

Colorimeter

Answer 29

Reduces subjectivity

Question 30

Reproducible results are from

Answer 30

Specifying the volume/concentration and stirring

Question 31

How temperature effects the two mechanism

Answer 31

Question 32

Answer 32