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48 Cards in this Set
- Front
- Back
diff b/w cofactor and coenzyme
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cofactor=ions; coenzyme=organic molec like NAD+, deriv. of vitamins.
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vitamin involved with metabolism of pyruvic acid
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B1 thiamine [1 pyre to cremate theman]
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Coenzyme in flavoproteins, active in electron transfers
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B2 riboflavin [Marty McFly and Doc were a team of 2, used electrons to go into the future]
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coenzyme involved in electron transfers other than b2
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niacin (nicotinic acid); part of NAD+
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coenzyme in AA metabolism
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B6 pyridoxine [AA mtg on a pyramid floating on a hexagonal dock]
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COENZYME INVOLVED IN TRANSFER OF METHYL GROUPS
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B12 cyanocobalamin**
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antioxidant needed for macromolecular syntheses
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Vitamin E [E needs vit E to build up his macro arms]
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part of coenzyme A, involved in pyruvic acid and lipid metab
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pantothenic acid
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involved in CO2 fixation reactions and FA synthesis
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biotin** [fatties drive Saturn cars that emit CO2 and are made of tin]
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coenzyme used in synth of big pur ag and pyrimidines
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folic acid [aluminum foil rolled up into a DNA double helix]
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coezyme used in electron TRANSPORT (napthoquinones, quinones)
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Vitamin K [kuinones]
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blood clotting vitamin
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Vitamin K
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4 factors that affect enzyme activity
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pH, inhibitors, temp, substrate conc.[PITS]
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2 categorizations of enzymes
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based on their chemical reaction, based on their targets
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how does the NAD+ coenzyme work?
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2 pairs of H+/e- leave the organic molecule and jump onto the NAD+. 1H+ leaves, and you're left with NADH + H+. So, NAD+ got reduced and the organic molecule is oxidized
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2 mech for ATP production
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substrate-level phosphorylation; ox. phos
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fermentation = substarte level or ox phosh
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substrate level duh
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diff b/w substrate level and ox phos
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ox phos uses the ETC, redox reactions, and inorganic phosphate
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3 imp. electron carriers
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FMN, FAD, NAD+
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define - movement of ions across a selectively permeable membrane, down their electrochemical gradient
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chemiosmosis (proton motive force)
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in chemiosmosis, what is electron flow coupled with
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H+ efflux via proton pumps - so you **** H+ out and end up with ATP on the inside
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mechanism of energy generation via proton motive force
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ETC includes proton pumps so as e- move, H+ get pumped outside the membrane. This creates a electrochemical gradient and the H+ wants to come back inside. It does so via ATP synthase, which uses the entering H+ to spin the motor and force ADP to hit on Pi and they join and make good old ATP
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in glycolysis, what does glucose get turned into? what are the 2 options for this molecule and why?
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glucose --> pyruvic acid. 1) NO O2: Pyruvic acid --> lactic acid; 2) O2: Pyruvic acid --> ACoA --> enter Krebs --> NAD/FAD ETC atp
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very generic end products of fermentation
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acid and gas
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dx use of Cyt C oxidase
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add substrate that bacteria culture sample and if it changes color when oxidized, then you know it uses the ETC and ox. phos
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2 bacteria that have Cyt C oxidase
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Psuedomonas aeruginosa, Neisseria [NaP]
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what does yellow/orange in a Durham tube mean
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acid
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3 imp sugars used in clinical microbio
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glucose, lactose, mannitol
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sugar used to screen for staph. aureus
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mannitol
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TF Many intestinal pathogens are lactose positive
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FALSE - many intestinal pathogens are lactose NEGATIVE
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what do we use glucose for in clinical micro
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test for fermentation ability
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Name an important nonfermenter
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psuedomonas aeruginosa
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type of bac that play a major role as opportunistic pathogens in hospital setting
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nonfermenters
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TF All products of the Krebs cycle come from glucose
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false - lipids like glycerol, FA and AAs both can be made into intermediates before and ACoA itself
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TF All products of the Krebs cycle come from ACoA
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TRUE
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pH range to be considered an acidophile
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pH 1-2
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4 elements key for bac
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SouP CaN [SPCN]
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3 trace elements key for bac
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iron, copper, zinc
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psychrophiles optimum temp
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-10 to 20
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psychrotrophs optimum temp
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0 to 30
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mesophiles optimum temp
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10 to 50
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thermophiles optimum temp
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40 to 70
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hyperthermophiles optimum temp
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65 to 110
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only type of organism that can grow above 95degC
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archaea
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name a pathogen that can multiply in the fridge
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Listeria monocytogenes [listerine on top of the fridge]
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danger zone for rapid bac growth
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15-50 deg c
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catalase + or - : staphylococi
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catalase POSITIVE
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catalase + or - : streptococi
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catalase NEGATIVE
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