Main Difference – Aerobic vs Anaerobic Respiration
Aerobic and anaerobic respiration are the two types of cellular respiration found in organisms. cellular respiration is the process of degrading food in order to release the potential energy in the form of ATP. Aerobic respiration occurs in higher animals and plants. Anaerobic respiration chiefly occurs in microorganisms like yeast. Both processes use glucose as the bare-assed fabric. The main difference between aerobic and anaerobic respiration is that aerobic respiration occurs in the presence of oxygen whereas aerobic respiration occurs in the absence of oxygen .
This article examines ,
1. What is Aerobic Respiration
– Characteristics, Process
2. What is Anaerobic Respiration
– Characteristics, Process
3. What is the difference between Aerobic and Anaerobic Respiration
What is Aerobic Respiration
The plant of reactions occurring in the presence of oxygen, which breaks down food in club to generate energy in the form of ATP, is known as aerobic breathing. The most abundant type of cellular reparation is aerobic respiration, which occurs in higher plants and animals. Aerobic respiration occurs in the cytoplasm american samoa well as in the mitochondrion. It produces 36 ATP from a individual glucose atom. Basically, three steps are involved in aerobic respiration. They are glycolysis, citric acid hertz and the electron transport chain. The substrate is largely glucose and the inorganic end products are carbon dioxide and water. Hence, aerobic respiration is the reverse of photosynthesis. The overall chemical reaction of aerobic respiration is shown below .
Chemical Reaction of Aerobic Respiration
C6H12O6 + 6 O 2 → 6CO2 + 6H2O + 2,900 kJ/mol
Glycolysis is the first step of aerobic respiration and occurs independently without oxygen. consequently, it is the first mistreat of glucose abasement in anaerobic respiration a well. Glycolysis occurs in the cytoplasm of all cells. During glycolysis, glucose is broken down into two pyruvate molecules, generating 2 ATPs as the web amplification. In addition, two molecules of NADH are formed by obtaining electrons from glyceraldehyde-3-phosphate. The pyruvate is transformed into the matrix of mitochondrion, forming acetyl-CoA from pyruvate by eliminating carbon paper dioxide during oxidative decarboxylation of pyruvate. Acetyl-CoA then enters into the citric acid cycle, which is besides called the Krebs bicycle. During the citric acerb cycle, a single glucose atom is wholly oxidized into six carbon paper dioxide molecules, generating 2 GTPs, 6 NADH and 2 FADH2. These NADH and FADH2 are combined with oxygen, generating ATP during oxidative phosphorylation. The oxidative phosphorylation occurs in the inner membrane of mitochondrion, transferring electrons through a series of carriers in the electron transport chain. The full output of aerobic respiration is 36 ATP. A schematic diagram of aerobic breathing is shown in calculate 1 .
What is Anaerobic Respiration
Anaerobic Respiration is the set of reactions occurring in the absence of oxygen, which breaks down food into dim-witted organic compounds, generating energy in the form of ATP. Anaerobic breathing occurs in microorganisms like some bacteria, yeast, and epenthetic worms. It occurs in the cytoplasm of those organisms ’ cells, yielding alone 2 ATPs .
Two categories of aerobic respiration are identified. The first class of anaerobic respiration occurs through glycolysis and incomplete oxidation of pyruvate either into lactic acid or ethyl alcohol. The process is called zymosis. The concluding electron acceptor and the hydrogen acceptor is the bare organic end merchandise. The end products are secreted into the medium as consume metabolites. During agitation, glycolysis occurs as the first gear step. The ensuing pyruvate is converted into ethyl alcohol in yeast and some bacteria. In plants, when oxygen is absent, ethanol is produced by anaerobic respiration. This type of agitation is called as ethyl alcohol zymosis. The overall chemical reaction of ethyl alcohol agitation is shown below .
Chemical Reaction of Ethanol Fermentation
C6H12O6 → 2C2H5OH + 2CO2 + 118 kJ/mol
In animals, when oxygen is lacking, lactic acerb is produced by anaerobic breathing. This is called as lactic acidic agitation. The overall chemical reaction for lactic acerb agitation is shown below .
Chemical Reaction of Lactic Acid Fermentation
C6H12O6 → 2C3H6O3 + 120 kJ/mol
The efficiency of zymosis is very abject compared to aerobic respiration. lactic acerb, which is produced during the lactic acid zymosis is toxic to tissues. The difference between aerobic breathing and anaerobic respiration in the common sense of lactic acid zymosis is shown in figure 2 .
During the second category of anaerobic respiration, the final electron acceptor is sulfate or nitrate at the end of the electron transportation chain. Some prokaryotes like bacteria and archaea perform this type of anaerobic respiration. Accepting electrons by sulfate produces hydrogen sulfide as the end product. In methanogens, the final electron acceptor is carbon dioxide, which produces methane as the end product .
Difference Between Aerobic and Anaerobic Respiration
Aerobic Respiration: Aerobic respiration occurs in the presence of oxygen .
Anaerobic Respiration: Anaerobic respiration occurs in the absence of oxygen .
Type of Plants and Animals
Aerobic Respiration: Aerobic breathing is found in all higher plants and animals.
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Anaerobic Respiration: Anaerobic respiration is normally found in microorganisms, but rarely in higher organism .
Aerobic Respiration: Aerobic respiration only occurs inside the cell .
Anaerobic Respiration: Anaerobic breathing can occur anywhere .
Localization inside Cell
Aerobic Respiration: Aerobic breathing occurs in the cytoplasm and mitochondrion .
Anaerobic Respiration: Anaerobic respiration occurs only in the cytoplasm .
Aerobic Respiration: Aerobic respiration occurs endlessly in the bearing of oxygen boast .
Anaerobic Respiration: Anaerobic breathing occurs continuously in microorganisms. But in higher animals, it occurs in the absence of oxygen .
Aerobic Respiration: Aerobic respiration occurs through glycolysis, pyruvate oxidation, TCA cycle, electron transportation chain and ATP synthesis .
Anaerobic Respiration: Anaerobic respiration occurs through glycolysis and incomplete breakdown of pyruvate .
Aerobic Respiration: Aerobic breathing generates 36 ATPs per glucose molecule .
Anaerobic Respiration: Anaerobic respiration generates 2 ATPs per glucose molecule .
Aerobic Respiration: Aerobic respiration is non-toxic to the organism .
Anaerobic Respiration: Aerobic breathing is toxic to higher organisms .
Aerobic Respiration: End products in the aerobic respiration are carbon dioxide and water .
Anaerobic Respiration: end products of the zymosis in yeast are ethyl alcohol and carbon paper dioxide. In animals, the end product is lactic acerb. Bacteria produce methane and hydrogen sulfide as end products .
Aerobic Respiration: Substrate is oxidized completely into carbon paper dioxide and urine during aerobic respiration .
Anaerobic Respiration: Substrate is incompletely oxidized during anaerobic breathing .
cellular respiration occurs in two pathways known as aerobic breathing and anaerobic respiration. Aerobic breathing by and large occurs in higher animals and plants. Anaerobic respiration occurs in microorganisms like parasitic worms, yeast, and some bacteria. Both aerobic and anaerobic respiration use glucose as the substrate. Aerobic respiration occurs in the presence of oxygen, completely oxidizing the substrate, yielding inorganic conclusion products, carbon dioxide, and water. In contrast, anaerobic breathing occurs in the absence of oxygen, incompletely oxidizing the substrate, yielding organic end products like ethyl alcohol. Since anaerobic breathing incompletely oxidizes the substrate, the give way of ATP is very first gear compared to its move over of aerobic breathing. Aerobic respiration yields 36 ATPs but anaerobic respiration only yields 2 ATPs per glucose molecule. This is the difference between aerobic breathing and anaerobic respiration.
Read more: ED
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effigy courtesy :
1. “ Aerobic pathways ” By Boumphreyfr – Own work ( CC BY-SA 3.0 ) via Commons Wikimedia
2. “ 2505 Aerobic Versus Anaerobic Respiration ” By OpenStax College – Anatomy & Physiology, Connexions Web web site. Jun 19, 2013. ( CC BY 3.0 ) via Commons Wikimedia