REQUIRED PRACTICAL: ENZYMES Flashcards
1
Q
Why is it a good idea to measure the temperature inside the test tube and not just outside?
A
- to measure the solution temperature not just the glass
2
Q
What is the sign for a positive test for starch?
A
- blue black colour change
3
Q
What does it mean when there is no colour change with the iodine?
A
- starch fully broken down (no starch left)
4
Q
How can we use a graph of our results to determine the optimum pH?
A
- smallest time is the optimum
5
Q
How can we improve the investigation to improve the accuracy of our optimum temperature reading?
A
- more intervals between 6 and 8
- 0.2 , 0.4 , 0.6
