biological molecules
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Define metabolism
All the chemical reactions taking place in the cells of the body
Elements of Carbohydrates?
Carbon Hydrogen Oxygen
What are carbohydrates made out of?
Sugar
What are the elements of Protein?
Carbon Hydrogen Oxygen Nitrogen Sulfur
What are carbohydrates?
Long-chain molecules made up of smaller molecules called AMINO ACIDS
What are the elements of fat?
Carbon Hydrogen Oxygen
What is the structure of a fat?
3 fatty acid molecules stuck into 1 glycerol molecule
What solution is used to test starch?
Iodine
What is the positive result of an iodine test?
It turns from yellow to blue-black
What is the Benedict solution used to test?
Reducing sugar
What is the positive result of the benedict solution?
It turns from Bright blue to orangish colour.
Do you have to boil during the test for reducing sugar?
Yes
What is the Biuret solution used for?
Testing Protein
What is the positive result for testing protein?
It turns from blue to violet
What is solution used in testing fats?
Ethanol
Do you have to shake the ethanol?
yes
What is the positive result for testing fats?
It turns to a white emulsion
What does a DNA molecule consists of?
2 strand coiled together to form a double mix
What does adenine(A) bond with?
Thymine(T)
What does Cytosine(C) bond with?
Guanine(G)
What is a chromosome made up of?
A long super-coiled stand of DNA
What are the chemical elements in proteins? A. Carbon, Hydrogen and Oxygen B. Carbon, Hydrogen, Nitrogen and Oxygen C. Carbon, Hydrogen, Nitrogen, Sulfur and Oxygen D. Carbon, Nitrogen, Oxygen and Sulfur
C