Praticals Flashcards
1
Q
What substance show that lipids are present
A
Ethanol
2
Q
Descibe the colour change of ethanol when lipids are present
A
Colourless -> milky white
3
Q
What solution shows that starch is present
A
Iodine
4
Q
Iodine colour change when starch is present
A
Yellow/brown -> to blue/black
5
Q
What solution is used to show sugars are present
A
Benedict’s solution
6
Q
What colour change does Benedict’s solution turn depending on the sugar
A
Blue _> green, yellow, orange and brick red
7
Q
What solution shows protein present
A
Biuret solution
8
Q
What colour does biuret solution go when protein present
A
Blue -> lilac/ purple
