EBIO 3400 1st Edition Lecture 18Current LectureReview for Exam Without N cycl- look at th fixation rout- without N fixation w would all b dad, only prokaryotic organisms can carry out N fixation - all amino acids cam from N fixation or artificial fixationN Fixation- Nitrognas: nzym complx that catalyzs it- whol complx can only funciton anarobically- anything fixing nitrgn has to b protctd from oxygn in th atmosphrAnabaa- htrocyst that kps oxygn outN fixation- anabolic procss- not nrgy yilding- build protins in clls, not to brak down- organisms dont do this unlss thy hav to, vr nrgy costlyWhr hav w sn- alot of fr living bactria and archaa in anarobic systms- gosiphon-lichns that hav alga in thm- trmits whr thy at wood and has almost no nitrogn in it, thy dpnd on N fixing spirochts in thir guts to mak all thir a.a.- lgums hav noduls on thir roots that hous protobactria- Frankia hav noduls as wllNostoc insid gosiphon- glomromycota- mak wird bladdrs that captur cyanobactria- hav htrocysts whr N fixation occurs- spirochts fix nitrogn, know gnral spriochts wtalkd aboutNOT&- mycorrhiza ar ukaryots- do not fix nitrogn- tak up alrady fixd nitrogn and phosphorus and giv th plants nutrints that wayMalo Lactic frmnntation- rcogniz chmical ractions- ovrall frmntation raction- dicarboxilic acid --> rlasing carbon dioxid and lactic acid - rducd th acidity in win- R&COGNIZ& THIS R&ACTION (vn without CO2)Scondary mtabolitsBactrial gnoms- quit stamlin -- vry adaptd- ranking gnoms:- things that hav covolvd for a long tim with hosts or nvironmnt, loos ability to do things by thmslvs (mor fastidious)- alot of obligat symbionts hav th smallst- should b abl to rank from smalls gnom to largst gnomSnapping divisions- undrstand mchanism bhind snapping division- ar cool bcaus gram These notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute.positiv- hav doubl layrs of thick pptidoglycan layrs- on sid of ousid layr braks off first, thn has rmnant on th othr sid - stick togthr bcaus of snapping divisionSpirochts- axial filamnts ar flaglla- not much diffrnt than coli, flaglla wrap around th body - still ahv rotary motor, causs whol organism to rotatknow 3 gnra on bottomPhysiology and Mtabolism- form surival balls whn running out of nutrintsCllulos digstion- pictur is on xam- know what this is- organisms in th bactri dts- atingcllulos fibrils, attach to at and grow and mov along it using gliding motility - xcrting xtracllular nzyms to brak downStaphylococcus- divid in diffrnt plans- know vrything on top of slid, dont nd to know tr&lctron donors and accptors- donors ar th nrgy sourc for hrtrotrophuc and chmotrophic microorganisms - good donors hav a lot of protons (H)- &lctron accptors --> oxygn is bst lctron accptor- anything with oxygn will b abl to tak lctrons and b good accptor& transport chain- lctron accptor taks it at th nd- drop in nrgy is what drivs pumping of ## across th mmbran- might b pictur- lctrons ar from donors, thos lctrons ar passd to NAD (carrir) - thn passd onto accptors&. coli can usTh ordr- oxygn is bst accptor- carbon dioxidd is th worst *** Know this ordrstickland raction = if two amino acids ar on on sid of th
View Full Document
Unlocking...