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48 Cards in this Set

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