-
Anonymous users2024-02-08Anaerobic respiration: refers to the incomplete oxidation of organic matter by living cells. There is no molecular oxygen involved in this process, and the incomplete oxidation products after its oxidation are mainly alcohol.
Total reaction formula: C6H12O6 2C2H5OH + 2CO2 + 226 kJ (54 kcal) Anaerobic respiration is often referred to as fermentation in higher plants. When the incomplete oxidation product is alcohol, it is called alcoholic fermentation; If it is lactic acid, it is called lactic acid fermentation.
Under hypoxic conditions, only anaerobic respiration can be carried out to temporarily maintain its vital activities. Anaerobic respiration can eventually cause harm to plants, which may be due to the incomplete oxidation of organic matter and the production of less energy. Thus, due to the Pasteur effect, the rate of glycolysis is accelerated to compensate for the low ATP yield.
This will lead to the accumulation of incomplete oxidation products, which will be toxic to cells; In addition, it also accelerates the consumption of sugar, and there is a danger of depleting the respiratory substrate.
Aerobic respiration: Aerobic respiration refers to the process in which cells completely oxidize and decompose organic substances such as sugars through the catalytic action of enzymes with the participation of oxygen, producing carbon dioxide and water, and releasing a large amount of energy at the same time. Aerobic respiration is the main form of respiration in higher animals and plants.
Anaerobic Respiration Formula:
Alcoholic fermentation: C6H12O6---2C2H5OH+2CO2+ energy.
The horizontal line should be changed to an arrow, superscript: enzyme).
Malolactic fermentation: C6H12O6---2C3H6O3+ energy.
The horizontal line should be changed to an arrow, superscript: enzyme).
Aerobic Respiration Formula:
Aerobic respiration requires the participation of molecular oxygen, whereas anaerobic respiration does not require the participation of molecular oxygen.
The products of aerobic respiration are carbon dioxide and water, and the products of anaerobic respiration are alcohol or lactic acid.
Aerobic respiration releases more energy, while aerobic respiration releases less energy.
-
Anonymous users2024-02-07Oxygen is required for aerobic respiration, and oxygen is not required for anaerobic respiration.
-
Anonymous users2024-02-06The first stage of the reaction is the same, in which glucose is catalyzed by enzymes to decompose into pyruvate, reduced hydrogen, and ATP.
1. Different properties: anaerobic respiration is a special type of respiration with low productivity efficiency that occurs under anaerobic conditions when anaerobic or facultative anaerobic microorganisms use exogenous inorganic oxides or organic substances as terminal hydrogen (electron) acceptors. Aerobic respiration refers to the process in which cells completely oxidize and decompose organic matter through the catalytic action of various enzymes with the participation of oxygen, produce carbon dioxide and water, release energy, and synthesize a large amount of ATP.
2. Different characteristics: aerobic respiration is the main form of respiration in higher animals and plants. Anaerobic respiration is a class of biological oxidation in which hydrogen receptors at the end of the respiratory chain are exogenous inorganic oxides (and individual organic oxides).
3. Different stages: aerobic respiration is divided into three stages, of which the third stage has oxygen participation, which completely decomposes organic matter and releases a large amount of energy, and anaerobic respiration is divided into two stages, without oxygen participation, organic matter is not completely decomposed.
Aerobic respiration process.
The total reaction formula of aerobic respiration: C6H12O6 + 6H2O + 6O2 enzyme 6CO2 + 12H2O + massive energy (38ATP).
In the process of aerobic respiration, glucose is completely oxidized and decomposed, and 1mol of glucose is completely oxygenated after the decomposition of oxygen, a total of 2870kJ of energy is released, of which 1161kJ of energy is stored in ATP, and 1709kJ is lost in the form of heat energy. The utilization rate is.
Oxidative phosphorylation (electron transport chain) (reaction site: inner mitochondrial membrane).
The above content refers to Encyclopedia - Aerobic Respiration.
Encyclopedia - Anaerobic respiration.
-
Anonymous users2024-02-05The similarities between aerobic respiration and anaerobic respiration are:
1. The reaction in the first stage of the two is the same, both are glucose.
It is catalyzed by enzymes to decompose into pyruvate, reduced hydrogen and ATP;
2. Both can provide energy for life activities.
Aerobic respiration is the main mode of respiration in higher animals and plants, and its place of action is the cytoplasmic matrix and mitochondria.
Whereas, anaerobic respiration is a mode of cellular respiration, which occurs in yeast.
and lactic acid bacteria.
1.Concept Respiration = biological oxidation.
The organic matter in living organisms undergoes a series of oxidative decomposition within the cell, and finally produces carbon dioxide or other substances. >>>More
It is recommended that those below high school only read simple explanations, and complex ones will be difficult to understand and tangled. >>>More
High 3 Biology] Photosynthesis and Respiration.
Aerobic respiration refers to the process in which cells completely oxidize and decompose certain organic matter with the participation of oxygen, release carbon dioxide and form water, and release a large amount of energy at the same time. The site includes the cytoplasmic matrix to complete the first stage of aerobic respiration, which decomposes one molecule of glucose sugar into two molecules of pyruvate (pyruvate is a three-carbon compound) and two molecules of water, the second step of aerobic respiration in the ** chondrial matrix, which is decomposed into CO2 with the participation of water and produces a reduced state of H, and the third part of ** is completed on the inner membrane of ** parteondrial state, and the reaction of oxygen and reduced state H produces water to produce a large amount of energy, and the first two steps only produce a small amount of energy. As long as mitochondria, oxygen is involved and eventually breaks down organic matter into CO2 and water, which is aerobic respiration. >>>More
Organisms containing cell structures can carry out anaerobic respiration, some fungi or bacteria can carry out aerobic respiration as long as they contain aerobic respiratory enzymes, and generally not specifically stated can be aerobic plus anaerobic, such as Escherichia coli, there are two kinds, one anaerobic and one facultative anaerobic. In fact, you don't have to memorize these, you can get them according to the requirements of the question.