Biological molecules

Question 1

what are carbohydrates and what are they made of?

Answer 1

carbohydrates are polymers that break down to simpler sugar
* they are made of hydrogen,oxygen and carbon

starch - amylase- maltose

Question 2

what are proteins and what are they made of?

Answer 2

protein are molecules that breaks into monomers : amino acid
they are made of : nitrogen, oxygen ,carbon, sulfer, hydrogen and phosphorus

protein- protase - amino acid

Question 3

what are lipid and what are they made of?

Answer 3

convert glycerol and fatty acid
* carbon , hydrogen and oxygen

Question 4

what is colour test for glucose ( benedicts solution)

Answer 4

solution present: brick red
not present : brown

Question 5

what colour for the test for starch( iodine solution)

Answer 5

solution present: blue black
not present : brown

Question 6

what colour for the test for protein( biuret solution)?

Answer 6

solution present: purple
not present : purple

Question 7

what colour for the test for lipid (ethanol)?

Answer 7

solution present : milky emulsion
not present : colourless