RP 3 Flashcards
1
Q
Method to produce diff glucose conc from a known conc
A
Dilution series
2
Q
When peeling of potato suggest some variables to control and explain why you would control them
A
- Same size
2.same SA
3.not affect rate of osmosis
3
Q
Why the change in mass stays same?
A
No more water is leaving by osmosis
4
Q
Method after u cut potatoes in equal lenghs for SA
A
(1.same lenght/sama sa)
2.control temp
3.dry of potato using tissue
3.put them all in sol
5
Q
How you measure rate of potato cylinders?
A
1.change in mass
2.over time in 5 intervals mins
6
Q
How to expose potato to all surface? Why?
A
1.shake tube
2. Maintains conc grad
7
Q
Describe a method to prepare colour standards.
A
- Dilution series
2.know. Conc of X
3.compare with colour standards to give score
