anaerobic respiration and fermentation are two pathways that generate in the absence of?
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Fermentation is a widespread pathway, but it is not the only way to get energy from fuels anaerobically (in the absence of oxygen). ... This process, called anaerobic cellular respiration, is performed by some bacteria and archaea.
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Glycolysis can take place without oxygen in a process called fermentation. The other three stages of cellular respiration—pyruvate oxidation, the citric acid cycle, and oxidative phosphorylation—require oxygen in order to occur.
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Aerobic respiration needs oxygen to occur, while anaerobic does not. ... During aerobic respiration, carbon dioxide, water, and ATP are produced. During anaerobic respiration, lactic acid, ethanol, and ATP are created. In anaerobic respiration, only 2 ATP are made, while 36 are made in aerobic respiration.
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Fermentation. Without oxygen, pyruvate (pyruvic acid) is not metabolized by cellular respiration but undergoes a process of fermentation. The pyruvate is not transported into the mitochondrion, but remains in the cytoplasm, where it is converted to waste products that may be removed from the cell.
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Glycolysis is the first step in respiration, which precedes the Krebs cycle and is fully anaerobic. Note that oxygen is not directly required for the Krebs cycle (it is not a reactant), however, without oxygen, the electron transport chain will not proceed and thus the Krebs cycle will also be halted.
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Respiration (cellular) is aerobic while fermentation is anaerobic. Oxygen is used in respiration while it is not used in fermentation. In fact, fermentation occurs due to absence of oxygen. Respiration involves the usage of enzymes such as glucose.
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What are the two substances that may be formed in anaerobic respiration? Alcohol and lactic acid. Recall that two molecules of ATP are formed during glycolysis.
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Without oxygen, organisms must use anaerobic respiration to produce ATP, and this process produces only two molecules of ATP per molecule of glucose. Although anaerobic respiration produces less ATP, it has the advantage of doing so very quickly.
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Aerobic respiration is the process of conversion of energy into ATP in the presence of oxygen, while anaerobic respiration is the process of respiration in the absence of oxygen. Fermentation is the process of conversion of sugars to acids, alcohols or gases in the absence of oxygen.
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The short answer is no. Even though they have similar parts and neither uses oxygen, there are differences between fermentation and anaerobic respiration. In fact, anaerobic respiration is much more like aerobic respiration than it is like fermentation.
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Review: In the process of glycolysis, a net profit of two ATP was produced, two NAD+ were reduced to two NADH + H+, and glucose was split into two pyruvate molecules. When oxygen is not present, pyruvate will undergo a process called fermentation. ... Fermentation does not require oxygen and is therefore anaerobic.
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The end products of anaerobic respiration are Lactic acid or ethanol and ATP molecules. Anaerobic respiration takes place in the absence of oxygen and is seen in lower animals. During the process of Anaerobic Respiration in prokaryotes, there is a breakdown of glucose to produce energy for cellular activities.
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Anaerobic respiration is the formation of ATP without oxygen. This method still incorporates the respiratory electron transport chain, but without using oxygen as the terminal electron acceptor.
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The main difference between fermentation and respiration is that during fermentation, NADH is not used in the oxidative phosphorylation in order to generate ATP whereas, during respiration, NADH is used in the oxidative phosphorylation in order to generate three ATPs per NADH.
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Answer and Explanation: The products of anaerobic respiration in yeast are ethanol and carbon dioxide. A small amount of energy is also released.
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The ATP generated in this process is made by substrate-level phosphorylation, which does not require oxygen. Fermentation is less efficient at using the energy from glucose: only 2 ATP are produced per glucose, compared to the 38 ATP per glucose nominally produced by aerobic respiration.
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What are the two substances that may be formed in anaerobic respiration? Alcohol and lactic acid.