Biol202 discussion - Study guides, Class notes & Summaries

My results from every lab experiment I conducted were positive. The experiments used a range of different scientific techniques to give me an experimental foundation for the theoretical concepts discussed in the lectures. I learned about the equipment used in lab experiments, comprehended the scientific approach, and learned how to analyze data, and now I know how the concepts were developed logically.

W6:RespiratoryDistress IchoseTopic2presentanargumenttosupportlackofvaccinationasacauseforresurgence.  Whatisthemechanism(s)thatBordetellapertussisusestoinvadeepithelialcellsinthelungs?  WhydoesthisGram-negativebacteriacausethecharacteristiccoughthatitdoes?  Whyisinfantmortalityhigh?  WhatroledoesherdimmunityplayinthespreadofaninfectiousdiseaselikeWhoopingcough?

RSV The virus that I chose is RSV (Respiratory Syncytial Virus). The infectious virus known as respiratory syncytial virus (RSV) affects the respiratory system and the lungs. RSV is a negative single-stranded RNA virus. Infants, older individuals, those with weakened immune systems, and those who have lung disease may be more severely affected by this virus. After being exposed to RSV, symptoms don't often appear for two to eight days. Typically, symptoms persist for three to seven days. Mos...

Week 5:Immunityand Probiotics For this discussion, I chose Activia yogurt. 1. Whatpartofimmunityorourimmunesystemmightprobioticsexertaneffect,ifany? 2. Explaintheproposedmechanism(s)ofhowprobioticswork? 3. Doesone have tobuyaspecialbrandof theproductsforittowork? 4. Youonlychoseoneofthetopics,butwhatisthecommondenominatorfromallof them(it'samicrobe)?

Week 7:GammaRaysandMicrobialGenetics Forthisdiscussion,IchoseTopic1ProGammaIrradiationofFood.  Wouldyoueatgamma-irradiatedstrawberries?  Gamma-irradiationdoesextendtheshelf-lifebutaftersometime,molddoesbegintogrow. Where does themold come from?  Wasthemoldalreadypresentonthestrawberriesandthegrowthslowedbythegammairradiation?  If gamma irradiation becomes the standard for processing produce, over time will theconstantradiationexposureselectforresistantstrainsofmicrobesthatwillev...

W6: Respiratory Distress I chose Topic 2 present an argument to support lack of vaccination as a cause for resurgence. ▪ What is the mechanism(s) that Bordetella pertussis uses to invade epithelial cells in the lungs? ▪ Why does this Gram-negative bacteria cause the characteristic cough that it does? ▪ Why is infant mortality high? ▪ What role does herd immunity play in the spread of an infectious disease like Whooping cough?

Week 4: Antibiotic Resistance I chose to be the patient with possible MRSA. 1. Is this infection likely MRSA? 2. What would a MRSA infection look like on a patient; for example, describe how the wound presents. 3. Was the patient exposed to MRSA in the hospital prep, during the surgery the week previously or sometime afterwards (post- discharge)? 4. Where does liability for this (potential) infection rest? Is it the responsibility of the patient (making sure she followed her discharge instr...

Week 5: Immunity and Probiotics For this discussion, I chose Activia yogurt. 1. What part of immunity or our immune system might probiotics exert an effect, if any? 2. Explain the proposed mechanism(s) of how probiotics work? 3. Does one have to buy a special brand of the products for it to work? 4. You only chose one of the topics, but what is the common denominator from all of them (it's a microbe)?

Week 4:AntibioticResistance IchosetobethepatientwithpossibleMRSA. 1. IsthisinfectionlikelyMRSA? 2. What would a MRSA infection look like on a patient; for example,describehowthewoundpresents. 3. WasthepatientexposedtoMRSAinthehospitalprep,duringthesurgery theweek previously orsometimeafterwards(post-discharge)? 4. Where does liability for this (potential) infection rest? Is it theresponsibilityofthepatient(makingsureshefollowedherdischargeinstructions,etc),nurse(s),scrubtechnicians,physic...

Week 7: Gamma Rays and Microbial Genetics For this discussion, I chose Topic 1 Pro Gamma Irradiation of Food. ▪ Would you eat gamma-irradiated strawberries? ▪ Gamma-irradiation does extend the shelf-life but after some time, mold does begin to grow. Where does the mold come from? ▪ Was the mold already present on the strawberries and the growth slowed by the gamma irradiation? ▪ If gamma irradiation becomes the standard for processing produce, over time will the constant radiation e...