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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 |