PAG 5 investigating membrane permiability

Question 1

what do we use to record how dark beetroot liquid is?

Answer 1

colorimeter

Question 2

what does a colorimeter record?

Answer 2

% absorbance

Question 3

the higher the permiability of the membrne the more pigment released so the …………. the absorbance of the liquid

Answer 3

higher

Question 4

an investigation method for how temp ffects betroot membrane permiability

Answer 4

1. cut 5 equal sized pieces of beetroot and rinse
2. place in 5 test tubes with 5cm3 of water
3. put in 5 dif water baths for x amount of time
4. remove betroot put a sample of each into a Cuvettes