Biological molecules

Question 1

what does the characteristics of living organisms spell?

Answer 1

Mrs Grein

Question 2

what are carbohydrate molecules made up of?

Answer 2

simple sugars - formed from carbon, hydrogen and oxygen

Question 3

what are proteins made up of?

Answer 3

long chains of amino acids - formed from carbon, hydrogen, oxygen, nitrogen and possibly sulphur

Question 4

what are lipids made from?

Answer 4

fatty acids and glycerol - formed from carbon, hydrogen and oxygen

Question 5

what foods contain carbohydrates?

Answer 5

pasta, bread, rice, potatoes, flour

Question 6

what foods contain protein?

Answer 6

meat, fish. eggs beans, lentils

Question 7

what foods contain fat?

Answer 7

butter, oil, lard, crisps

Question 8

what is the test for glucose?

Answer 8

pale blue benedicts solution heated to 95 degrees. Glucose produces (small) green, (medium) yellow, (large) orange - red precipitate

Question 9

what is the test for starch?

Answer 9

potassium iodide solution changes from brown to dark blue