LS 15 PHELAN UCLA 2024 UPDATED FINAL EXAM QUESTIONS AND 100% CORRECT ANSWERS (VERIFIED

LS 15 PHELAN UCLA 2024 UPDATED FINAL EXAM QUESTIONS AND 100% CORRECT ANSWERS (VERIFIED) 3 examples of why its hard to be a teenager - ANSWER-1. because they aren't supposed to reproduce 2. they experience hormonal changes 3. jealousy .4 steps of digestion - ANSWER-ingestion, digestion, absorption, elimination .absorption - ANSWER-moves nutrients from gut to cells to digestive tract to bloodstream to cells small intestine has villi and microvilli. gathers nutrients .acetycholine - ANSWER-released by motor neurons - muscle cells .acid v base - ANSWER-acid: below 7, lots of h+ base: above 7, fewer h+ .adenosine - ANSWER-byproduct of cellular exhaustion which builds up during the day and is cleared at night. it makes a cell less likely to fire. .adrenal - ANSWER-adrenaline and cortisol .adrenal glands - ANSWER-respond to stress just above kidneys, cortisol and adrenaline, fight of flight .adreniline - ANSWER-sense danger, increases heart rate, increases glycogen breakdown in liver and muscles and releases fatty acids, dilates bronchioles .after hormones are secreted by the secretory cell into the extracellular fluid, what is the next step - ANSWER-hormones enter the circulatory system via blood vessels .alcohol interference - ANSWER-1. slows down neurons (blocking glutamate receptors) 2. buzz (blocks dopamine reuptake) s pain (release of endorphins) 4. increases efficiency of serotonin receptors .amino acids - ANSWER-units of proteins, have an amino group and a carboxyl group .androgen - ANSWER-MALE sexual hormones .anterior pituitary - ANSWER-epithelial cells, tsh fsh prolactin acth and growth hormone .are testosterone and estrogen both produced by the ovaries and testes - ANSWER-yes .atom v element - ANSWER-bit of mater that cannot be subdivided farther without losing essential properties, substance that cannot be broken down chemically into any other substances .automatic nervous system - ANSWER-relays signals to glands and smooth muscle unconsciously .axon potential - ANSWER-na+ in and then K+ out! hops from node of ranvier to the next, all or none, depolarization .basal metabolic rates - ANSWER-energy needed to maintain life without activity. females-1400 males-1700, varies A LOT for species (shrew is 35x ours) .benefits of symmetry - ANSWER-grow quicker produce more attractive odors have more sexual partners are better lovers produce more babies symmetric horses are faster symmetric flowers produce more nectar .birth control - ANSWER-reduces risk of cuckoldry but we still get jealous and mate gaurd .blockades to the fre - ANSWER-condoms, abortion/adoptions, work from home/day care, maternity leave, democracy!!! .body composition - ANSWER-96% oxygen, carbon, hydrogen, and nitrogen .botox - ANSWER-degrades proteins required for fusion of vesicles with terminal button membrane and prevents ACH from being released so muscle becomes paralyzed for 2-4 months .building block of lipids - ANSWER-fatty acids .caffeine - ANSWER-caffeine binds to adenosine receptors and masquerades its effects but doesn't make a neuron less likely to fire. doesn't actually clear the adenosine, you can build tolerance, athletic performance, increased learning .caloric intake - ANSWER-rats benefit by not having as much but we don't because we don't ovulate .calorie - ANSWER-actually kilocalories on labels(1000)