glycolysis is the phase common to both aerobic and anaerobic respiration.
glycolysis
Both Aerobic and Anaerobic cell respiration occurs in the Mitochondria.
The anaerobic phase of cellular respiration is known as glygolysis. This is where glucose molecules are broken down into pyruvic acid.During this process, 2 molecules of adenosine triphosphate (ATP) is produced.
True
All three of the basic steps INSPIRATION, VENTILATION and PERFUSION although 1/2 of the 2nd phase or VENTILATION process requires no oxygen and it is the expiration of carbon dioxide from the body through the lungs.
When oxygen supplies cannot be kept up and the oxidative metabolism cannot produce all the ATP required, there is a switch to processes that break down glucose and glycogen to lactic acid which diffuses into the blood stream. Creatine phosphate is a substance that aids in the formation of ATP rapidly. Creatine phosphate + ADP <>ATP + creatine
The aerobic phase of respiration, which is the electron transport chain and oxidative phosphorylation, generates approximately 34 to 38 molecules of ATP per molecule of glucose through the process of chemiosmosis.
The anaerobic phase of respiration actually occurs in the cytoplasm outside of the mitochondria. This phase involves glycolysis, where glucose is broken down into pyruvate to generate ATP in the absence of oxygen. The pyruvate can then enter the mitochondria for further processing in the aerobic phase of respiration if oxygen is available.
Glycolysis is the only phase of cellular respiration that can occur without oxygen. This process takes place in the cytoplasm of cells and converts glucose into pyruvate, producing a small amount of ATP in the absence of oxygen.
During the anaerobic phase of cellular respiration, glycolysis occurs in the cytoplasm and produces a net of 2 molecules of ATP per glucose molecule. This process does not involve the production of molecules like in the citric acid cycle or electron transport chain.
well they are all less than a mile which means that over 50% of the race is run in the anaerobic phase. where as the mile or 1600m is about 54% aerobic. anaerobic is when the muscles lack enough oxygen for the work being preformed and must break down lactic acid in order to continue. a human can preform pure anaerobic work for about 45 seconds
There are two stages to the kind of anaerobic cellular respiration you are talking about: One (Glycolysis): Glucose is broken down via a process called Glycolysis into Pyruvate. Glycolysis does not require oxygen, therefore it can occur in Aerobic (Oxygen rich) or Anaerobic (Oxygen defficient) settings. Two (Ethanol Fermentation): 1. Pyruvate is converted into Acetylaldehyde and CO2. 2. NADH reduces Acetylaldehyde (gives it a proton/ H molecule) which converts it into ethanol (alhohol.) (Both of these phases can be considered Anaerobic, as no Oxygen is used. Glycolysis occurs in any condition (Aerobic/Anaerobic) but Fermentation occurs only in Anaerobic conditions. Ethanol Fermentation occurs only in Anaerobic conditions and in organisms such as yeast and some bacteria. In animal cells, when not enoguh O2 is present, lactic acid is created as a by-product instead of ethanol. (Remember that episode of The Magic School bus when they were inside someone and there was that white goo on their muscles? That was lactic acid.) The purpuse of cellular respiration is to convert sugars into energy that the body can use (ATP, NADH and FADH2.) It is not very efficitnt, and creates much less energy than Aerobic Cellular Respiration would (which performs Glycolysis and then breaks the resulting pyruvate down into CO2 and H2O.)