- contains elements carbon, hydrogen and oxygen:
Proteins are made of amino acids
- contains carbon, nitrogen, hydrogen and oxygen atoms:
Lipids are made of fatty acids and glycerol
Glucose Test
Benedict's test
Add Benedict's Regent (which is blue) and heat
if the test is positive it will form a colour precipitate
colour change: blue to green to yellow to orange to red
the higher the concecntration of glucose, the further the colour change goes
Iodine test:
Starch is present browny-orange to blue-black
No Starch stays browny-orange
Metabolic reactions:
enzymes reduce the need for high temperatures and we only have to speed up useful chemical reactions in the body.
Enzymes are very specific
Higher temperature increases the more heat and energy:
Things in bold, italics are for paper two
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