3 Biological Molecules Flashcards
1
Q
Chemical elements that make up carbohydrates
A
Carbon, Hydrogen, Oxygen
2
Q
Chemical elements that make up fats
A
Carbon, Hydrogen, Oxygen
3
Q
Chemical elements that make up proteins
A
Carbon, Hydrogen, Oxygen, Nitrogen
4
Q
Starch and glycogen are made of the smaller molecule, …
A
glucose
5
Q
Proteins are made of the smaller molecules, …
A
amino acids
6
Q
Fats and oils are made from …
A
fatty acids and glycerol
7
Q
Test for starch
A
Iodine solution: positive blue-black, negative orange-brown
8
Q
Test for reducing sugars
A
Benedict’s solution: concentration (highest to lowest) brick red, orange, yellow, green, blue
9
Q
Test for proteins
A
Biuret: positive purple, negative blue
10
Q
Test for fats and oils
A
Ethanol emulsion: positive cloudy emulsion, negative colourless
11
Q
Water is important as a …
A
solvent
