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LC Biology Chapter 3
Nutrition
| Term | Definition |
|---|---|
| Nutrition | the way in which living organisms obtain and use food. |
| Metacolism | the sum of all the chemical reactions in an organism |
| Continuity of life | the way in which living things arise from living things of the same type |
| Biomolecules | organic chemicals produced and found only within living organisms |
| Triglycerides | lipids composed of one glycerol molecule and three fatty acids |
| Phospholipids | lipids composed of one glyerol molecule, two fatty acids and one phosphate molecule |
| Anabolism | building up of large molecules from smaleer molecules using energy |
| Catabolism | breaking down of large molecules into smaller molecules with the release of energy |
| Reducing sugar | Benedicts/Fehlings |
| Reducing sugar | Blue to brick red |
| Starch | Energy store in plants and animals |
| Glycogen | Energy store in animals |
| Cellulose | Source of fibre/Energy store in herbivores |
| Starch | Iodine |
| Lipid | Brown paper test |
| Structural proteins | Collagen, Actin, Myosin and Keratin |
| Metabolic proteins | Enzymes, Hormones and Antibodies |
| Protein | Sodium hydroxide and Copper Sulfate |
| Protein | Blue to purple |
| Vitamin D | Calciferol |
| Vitamin D | Fat soluble |
| Vitamin D | Rickets |
| Vitamin D | Sunlight |
| Vitamin C | Ascorbic acid |
| Vitamin C | Scurvy |
| Vitamin C | Formation of collagen |
| Vitamin C | Citrus fruits |
| Vitamin D | Abosoption of calcium in the digestive system |
| Calcium in plants | Holds plant cell walls together |
| Calcium in animals | Formation of bones and teeth |
| Magnesium in plants | Fomation of chlorophyll |
| Magnesium in animals | Formation of bones |
| Water | Medium for chemical reactions, Solvent, Transport |
| Anabolism | Photosynthesis and Protein Synthesis |
| Catabolism | Respiration and Digestion |