Anaerobic Respiration and Fermentation
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- čas přidán 24. 07. 2024
- We took a look at aerobic respiration in the biochemistry series, and we know that it requires molecular oxygen to occur. But there are other forms of energy production that do not require oxygen. Those are anaerobic respiration and fermentation. The latter of these has two forms, as it can either result in the production of ethanol or lactate, and both of these processes are used industrially to make wonderful things like beer and wine and cheese. Let's see how this deliciousness works!
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I love that you explained the difference between anaerobic respiration and fermentation. Some sources only talk about fermentation and neglect to explain anaerobic respiration, giving some people the misconception that they are the same thing.
I wish Prof. Dave was my actual professor 😭 he explains things so well
Hello
thank you!!! this helped me really understand the lesson as our teacher has problems with her internet so it sometimes come off choppy. i watched all your photosynthesis and cellular respiration videos! they all helped me so thank you!!!!!
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This is a high yield biochem topic on the MCAT and I’ve yet to see a clear and concise video covering the basics until now. Thanks for the years of help!
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Thank you, it has made my day and built my level of understanding.
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It was fermented
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This is very good and concise video.
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This usually becauce the lec slide is just too much to digest
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I kinda have a question. When the pyruvate was decarboxylated and produced acetaldehyde, there is one hydrogen more... I didn't quite get that
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Thanks Professor Dave, I have a biology test tomorrow. Can you wish me good luck?
Isn't it need 4 NADH to make 2 ethanol? Since to make one from acetaldehyde we need 2 Hydrogen molecules. Or am I missing something?
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Is this also known as whole cell fermentation process?
What is the equation for fermentation?
Thanks!
I have a quick question about the lactic acid buildup causing sore muscles:
Has it been confirmed to be the culprit? I remember reading a paper a while ago about a test they did on treadmill runners; one test being flat and the other being a downward incline (decline?) The conclusion was that lactic acid buildup was consistent with both tests, but the general consensus was they felt worse after the decline run leading the researchers to the conclusion that it might be a correlation not causation type deal.
Technically it's not the lactic acid itself, but rather the protons that can be released by the lactic acid to make lactate (lactic acid is just lactate plus an additional proton, H+). If you're familiar with acid-base chemistry, pH = -log[H+]. In simpler terms, a higher proton (H+) concentration equals a lower pH, and a more acidic environment. My guess is that lactic acid (more specifically, the protons released by it, and thus, the acidic environment created by it) probably does cause muscle soreness.
@Smattless Both terms are interchangable (at least that's what I was taught). H+ is one proton and one neutron, so yes hydron is the more proper term. At least where I was taught, we simply referred to hydrons as protons, we ignored the neutron.
@@hunter_69_69
Wait but isn't hydrogen made of just 1 proton (lt doesn't have any neurons)?
@@hunter_69_69 , bro, muscle soreness and muscle fatigue are two different things. Muscle soreness happens after 12-24 hours right after a resistance training and is caused by microscopic tears on muscle fibers. Muscle fatigue, on the other hand, is caused by a high concentration of hydrogen ions. Also, lactic acid doesn't last for 1 day and is not to blame for the soreness of the muscles when it's the responsible of the satellite cells and amino acids to repair the damaged muscle tissues.
THE WHOLE CELLULAR RESPIRATION PROCESS PLEASE IN A VERY DETAILED WAY
PERFECT!!!
Thanks sir❤️
at 4:50 you say that the switch to lactic acid fermentation provides a brief burst of energy but how exactly? from what i know lactic acid fermentation produces far less ATP than aerobic respiration so where is the extra energy coming from
Pretty sure it just means it's better than nothing atall, since you don't have the oxygen for the more effective process.
There are many nutrients in our bloodstream (not just GLUCOSE) which can be used as fuel for our body including but not limited to: amino acids, fatty acids, glucose, etc... But since your body is exhausted to a maximum degree, you're forced to breathe rapidly and intensely, so making fatty acids as source of fuel (Fatty Acid Oxidation) produces more ATP molecules (129 molecules) compared to using just glucose from fermentation (2-4 ATP molecules) or amino acids (through Alanine Aminotransferase) as energy for our muscles. This is also the reason why exercising too much or having fast metabolism makes someone's body much like of an ectomorph type because they need to consume more calories (particularly carbohydrates) in order to catch up with their type of metabolism and also to gain weight with difficulty.
Is lactic acid fermentation an indefinite or temporary process? What ultimately stops lactic acid fermentation?
Lactic acid is a toxic molecule, so eventually it will just kill the cell.
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yo can u explain the major feautures of glycolysis, Krebs Cycle and Electron transport chain (Location , starting materials,and products and net ATP)? Plsssss
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what is NADH
I want next part
That intro is kinda cool...
The statement that lactic acid causes muscle fatigue is outdated, and false xD
Much thanks to Professor Dave, these series are very useful for reviews
I don't think it is false.
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Um, no. He's a con man. Try to avoid listening to anything he says.
My test is tomorrow
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why does noone go indepth with anaeorbic respiration, make it make senseeeee
What's missing?
Don’t mind her. She’s just being a brat.
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@@ProfessorDaveExplains for example, how much ATP it produces? Is it the same as aerobic respiration? since it also contains an electrons transport chain
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First!
God makes alcohol...
Jesus turned water into wine, but Jesus/God arent the only things that *can* make alchohol
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Your long hair is missing.
(OMG it is an honor to have a reply from the legend himself. I am now blessed.)
Oh yeah I cut it shorter in 2018