click below
click below
Normal Size Small Size show me how
Food
food
Question | Answer |
---|---|
Biomolecules of food? | protein, fat/lipids, carbs, vitamins, minerals & water |
Ratio of hydrogen:oxygen? | 2:1 |
components of carbohydrates? | CHO = carbon hydrogen oxygen |
what are monosaccharides? | 1 sugar unit e.g glucose |
what is the chemical equation for glucose? | C6H12O6 |
what are disaccharides? | 2 sugar units e.g. sucrose |
what are polysaccharides? | 3 or more sugar units e.g. starch, glycon, cellulose, chitin |
what is the structural role of polysaccharides? | cellulose builds plant cell walls & chitin builds insect exoskeletons & fungal cell walls (Rhizopus) |
what is the metobolic role of polysacchairdes? | storage of energy -> starch in plants and glycogen in animals (liver) |
What sugar is in DNA? | Deoxyribose |
what sugar is in RNA? | Ribose |
Components of proteins | CHON = carbon, hydrogen, oxygen, nitrogen & ocassionally sulphur and phosphurus |
what units are in protein | amino acids |
what links amino acids together | peptide bonds = forms peptide chains |
what shape do amino acids fold into | globular |
structural role of protein? | collagen which builds skin & myosin which builds muscle (fiborus structure) |
metabolic structure of protein? | formation of enzymes and hormones. |
componnets of fat? | CHO = carbon, hydrogen, nitrogen |
what are the 2 types of fat? | Phospholipid and the basic unit is triglyceride |
what does triglyceride have? | 1 glycerol and 3 fatty acids |
What does phospholipid have? | 1 glycerol, 2 fatty acids and 1 phosphate group |
what is the structural role of fat? | phospholipids build cell walls |
what is the metabolic role of fat? | release and stores energy |