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chemistry of life
Lipids, Nucleic Acids, indicators
| Term | Definition |
|---|---|
| Lipids | fats, phospholipids, and steroids - non-polar |
| hydrophobic | do not dissolve in water |
| fats | backup source of energy, insulation and protection |
| triglycerides | glycerol and 3 fatty acids, another name for fats |
| saturated fats | solid at room temperature |
| unsaturated fats | liquid at room temperature |
| trans fats | unhealthy, risk of obesity ad heart disease |
| phospholipids | build cell membranes |
| steroids | cholesterol, estrogen and testosterone(sex hormones) |
| nucleic acids | carry genetic information |
| nucleotides | 3 parts - sugar, phosphate, nitrogenous base |
| DNA | deoxyribonucleic acid produce proteins that form structure and control chemical processes, double helix,chemical that genes and chromosomes are made of |
| chromosome | composed of genes |
| genes | code for particular proteins that code for traits like hair color |
| RNA | small to get out of nucleus and send message to make different proteins,single strand,ribonucleic acid |
| base pairing | A,T,G,C-order of these bases is the code for different genes, A goes with T, G goes with C, Uracil replaces Thymine in RNA |
| cholesterol | comes from what you eat, gives cell membrane flexibility |
| Indicators | Test for specific substances |
| Litmus Paper | determines acid(blue paper turns red) and bases(red turns blue) |
| pH paper | dip into substance and color change is matched against a chart |
| Benedict Solution | test for sugar, turns blue to yellow, green or brick red depending on sugar concentration |
| Lugol's or Iodine solution | test for starch, turns from red to blue-black |
| Biuret solution | test for protein, turns from light blue to purple |