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Nutrition Ch.7
Metabolism
Question | Answer |
---|---|
Anabolism | Building of molecules |
Catabolism | Breakdown of molecules |
Cell Membrane | Surrounds the cells and holds all parts inside |
Cytoplasm | Jelly-like materials inside the cell |
Nucleus | Contains chromosome and controls the cell |
Mitochondrion | Where energy is made |
Endoplasmic Reticulum | A system of tubes of transport |
Ribosome | Where proteins are made, made of RNA |
Golgi | Packages and sends proteins |
Lysosome | Bag of enzymes and trash |
Nucleolus | Makes ribosomes, located in the nucleus |
Centriole | Make fibers |
Coenzymes | Compounds that help an enzyme, usually vitamins or minerals |
Fat Metabolism | Glycerol is converted into pyruvate which goes into the Krebs cycle. Fatty acids are broken down into 2 carbon pieces by the process, Beta Oxidation. Then enters the Krebs cycle as well. |
Deamination | Removal of the amine group to form ammonia (NH3) and 2 carbon pieces, which then enters the Krebs cycle. NH3 requires water to be excreted by kidneys, which put pressure on it |
Transamination | Transferring the amine group to another compound then the 2 carbon piece go thur the Krebs cycle |
Alcohol | Drinking alcohol is ethanol (CH3CH2OH), is able to penetrate cell membrane and damage the organelles |
Proof | Refers to the percentage of alcohol in a drink. Half the proof # equals the percentage of alcohol |
Reason behind breathalyzer or urine analysis tests for drunkenness | 10% of alcohol consumed leave the body by the breath and urine as it flows thru the blood, that amount is directly proportional to the amount in the blood which relates to drunkenness |
Effects of alcohol on the digestive tract | Causes the stomach to over secrete acid and histamine and cause ulcers, causes intestinal cells to stop absorbing B vitamins, cause folate (vitamin) to be released from the intestinal cells |
Some long term effects of alcohol | Cause rods of the eye to process the alcohol instead of Vitamin D, directly toxic to cardiac and skeletal muscle causing them to fall apart, increases blood pressure, causes cancer of the mouth, throat, esophagus, intestines, and lungs |