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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 |