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Cellular Respiration

Discussion of all aspects of cellular structure, physiology and communication.

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Cellular Respiration

Postby ms.scientist NOT! » Wed May 11, 2005 3:29 am

:) Hey there im needing help on cellular respiration. I know a lil about diffusion and osmosis but are there any sites that have basic info on cellular respiration that i can visit??????? :(
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Postby mith » Wed May 11, 2005 3:31 am

Use the search function on the forum, there's a couple of threads about that.
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Postby thank.darwin » Wed May 11, 2005 1:18 pm

Check out these sites...

http://www.sp.uconn.edu/~terry/images/anim/ATPmito.html

Animations of ATP production in the mitochondria. Thomas Terry of the University of Connecticut has created excellent animations of electron transport and the ATP synthease enzyme. These animations help to explain how electron transport generates an electrical gradient that provides the energy necessary to produce ATP. Click on the various links for different animations.

http://www.sp.uconn.edu/~terry/images/anim/ETS.html

Animations of electron transport in the mitochondria. You may reach this animation using links from the first address, since this is another animation produced by Thomas Terry.

http://www.emc.maricopa.edu/faculty/far ... kGlyc.html

Cellular metabolism and fermentation. This chapter of M.J. Farabee’s excellent online textbook will help you learn about both aerobic and anaerobic respiration.

http://users.rcn.com/jkimball.ma.ultran ... ation.html

A summary of the process of cellular respiration.

http://www2.nl.edu/jste/electron_transport_system.htm

Electron transport system. Hit the play buttons at the corners of the diagrams to view some nice animations. This is a really good visual representation of electron transport and chemiosmosis.

http://www.bact.wisc.edu/microtextbook/ ... foods.html

Fermentations of Importance to Humans. Examples of, and a brief discussion of how to make, some of the products of fermentation.

http://www.goaskalice.columbia.edu/0818.html

Muscle soreness and weightlifting. Alice explains why your muscles produce lactic acid and how you can avoid lactic acid production when weightlifting.

http://www.stolaf.edu/people/giannini/f ... nsport.swf

Another animation of electron transport. I can’t get enough of these. Hit the GO button in the lower left corner to start the show.

http://www.jonmaber.demon.co.uk/glyintro/

Introduction to glycolysis. Go to the questions at the bottom and click on each one. You can use the arrows at the top of each question page to proceed. Lots of information here if you can work your way through the site. I found that the Quicktime animations worked better on my computer.

http://www.ruf.rice.edu/~bioslabs/studi ... isons.html

Use of metabolic poisons to study mitochondrial function. A brief list of poisons that inhibit mitochondrial functioning.

http://www.gwu.edu/~mpb/

Metabolic pathways of biochemistry. While in more detail than your text, this site presents you with excellent three-dimensional rotatable images of carbohydrate metabolism (glycolysis, Krebs cycle…), lipid metabolism, protein metabolism, and chemiosmosis (oxidative phosphorylation). I had some trouble connecting to the 3-D plug-ins.

http://old.jccc.net/~pdecell/cellresp/respoverview.html

Overview of cellular respiration. You can click on various regions of the map for a more detailed explanation of that component of cellular respiration.

http://instruct1.cit.cornell.edu/Course ... LYSIS.HTML

The miracle of fermentation. You will need Macromedia’s Shockwave player to view this animation on lactate (lactic acid) fermentation.

I take no credit for these sites... My biology teacher gave them to me.
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Postby MrMistery » Wed May 11, 2005 8:18 pm

And i was just going to say that you really outdone yourself.. :P
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Postby thank.darwin » Wed May 11, 2005 10:05 pm

Yah, my biology teacher is great :D
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Postby kade » Tue May 17, 2005 10:55 am

thank.darwin wrote:Yah, my biology teacher is great :D


I wish i could say the same about my biology teacher.
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Postby MrMistery » Tue May 17, 2005 6:49 pm

My biology teacher is also great, but can't use a computer :( :(
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Postby Tamsicle » Sat May 21, 2005 1:36 pm

I really need help with the cellular respiration thing too. I'm familliar with a little bit of it, I think.

Does cellular respiration only refer to aerobic respiration or also anaerobic resp.? And aerobic resp occurs within the matrix of the mitochondria? (Is that BEHIND the cistae (I think it is?)? Does it diffuse in through the membrane or something? Is oxygen delivered to that region of the cell or does it just have to be present within the cytoplasm?) Also, what the hell is an electron transport chain? I've tried to read so many explanations but it seems like a phenomennon only a chem student could understand. I feel like sighing and accepting the fact that I may never 'get it'.

Without giving me a website that I can't understand, can someone please assist me? :(
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Postby Poison » Sat May 21, 2005 4:48 pm

cellular respiration refers to both anaerobic and aerobic respiration.
Aerobic respiration and anaerobic respiration both starts with the same process called Glycolysis. In aerobic, the further parts,in eukaryotes, take place in the mitochondria (in the matrix and the crista, matrix is the inner part of mitochondria). In anareobic, the process goes on in the cytoplasm. Yes. it is similar to diffusion, but the beter explanation (in my opinion) is: ' it enters the mitochondria.'
Oxygen is taken in to the cell by diffusion.
Electron transport System (ETS) is the system that is present on the crista of the mitochondira. It is like reducing the energy in levels.

Hope these helped... :)
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cellular respiration

Postby victor » Sun Jun 05, 2005 12:39 pm

I would also say the same. cellular respiration refers to both anaerobic and aerobic respiration. But the difference is on the products of each respiration and total ATP that they earn. In the aerobic respiration, there are 3 process which are glycolysis (earn 2 ATPs and 2 molecules of piruvic acid) then it continues to oxydative decarbocilation (taking away CO2 molecules in the piruvic acid and combine it with coenzyme A) after that it goes to crebs cycle and electron transport system. total ATP that is earned by the whole process of aerobic respiration is 34 ATPs. while in the anaerobic respiration it only have two steps which is glycolysis and then it continues to fermentation process. the total ATP that are earned in the anaerobic respiration is only 2 ATPs. So we can conclude that aerobic respiration process earn ATP 18 times larger that anaerobic respiration process.
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Postby MrMistery » Sun Jun 05, 2005 8:38 pm

A small correction victor. While fermentation is a typ of anaerobic respiration, it is not the only type. I will only give one example from dentrifying bacteria. It has an electron transport chain in it's mezozomes but the final acceptor it not oxigen, but nitrate(oxidated form)
The confusion between anaerobic respiration and fermentation is very common but alarming. It is like confusing mIRC and IRC
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Correction

Postby victor » Mon Jun 06, 2005 12:00 pm

Yup, I also think like that, because I'd read my book that there are fermentation that uses oxygen.(if I'm not mistaken, it's kinda like making an ethanol with the help of bacteria)
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