Aerobic Respiration

Let us know what is Aerobic Respiration. Respiration is an important process related to chemicals that is performed by all living beings from plants to humans to obtain the energy released for life.

Aerobic respiration deals with the reactions that are controlled by enzymes. The energy released by this reaction consists of lipids and carbohydrates and the aerobic respiration phases consists of four phases called-

  • glycolysis
  • link feedback
  • Krebs cycle
  • oxidative phosphorylation

Aerobic respiration is the type of cell-to-cell respiration that occurs in an area that contains space for the oxygen gas that is needed to make energy for food. This type of respiration is also common in most animals, humans, birds, plants, and other mammals. The end products that are formed here are called carbon dioxide and water.

Cellular reactions are a set of metabolic actions and methods that are observed in cells . Chemical energy for an organism is converted from oxygen molecules or part of the nutrients into adenosine triphosphate, leaving behind waste materials . Most of those reactions are catalysts that break down large molecules.

The bonds are broken into smaller portions by breaking the weak bonds and in most cases the oxygen molecule is replaced by multiple bonds that are stronger in products. Respiration is said to be one of the keys to helping the cell and its energy to obtain fuel for cell activity. The overall reaction occurs in a series of biochemical steps.

The aerobic repair steps require oxygen to make ATP. Although fats, carbohydrates, proteins are taken as reactants, it is the preferred signal for glycolysis to break down and pyruvate is needed for the mitochondria to be completely oxidized. Carbon dioxide and water are the products that result from and break the ADP bond.

Aerobic respiration formula

Aerobic respiration is a biological process where glucose is treated as food and then transferred into energy in the presence of being oxygen.

Aerobic respiration consists of several steps and the chemical formula is glucose (C6H12O6) + oxygen 6 (O2). → Carbon-dioxide  6(CO2) + Water 6 (H2O) + Energy (ATP). It has G = −6 kJ per mole of C2880H6O12.

The negative sign means that the reaction may have occurred spontaneously. According to the given reaction, energy is released by the splitting of glucose molecules using the gas oxygen. The end products that are formed in the final step of the reaction are ultimately energy, carbon dioxide and water.

There is about 2900Kj of energy that is released during the breakdown of glucose and in turn the energy is used to make ATP. ATP is adenosine triphosphate and its molecules are the ones that are used by the system to form several motifs . Worthwhile FADH2 and NADH are transferred to more ATP via an electron chain transport with protons and oxygen acting as terminal acceptors of electrons. Respiration is used by all cells to convert fuel into energy that can be used to power cellular processes.

The process of aerobic respiration is accompanied by a proliferative process that occurs in almost all multicellular organisms , including plants, humans, animals, and other organisms. During respiration in plants, oxygen must enter the cells through stomata and then green plants synthesize food. A chemical process in which oxygen is used to make energy from carbohydrates (sugars). It is also called aerobic metabolism, cell respiration and oxidative metabolism.

aerobic respiratory phase

The completion of aerobic respiration takes place in four phases as mentioned earlier-


This is the phase common to the aerobic respiration phases and then the method of glycolysis is observed inside the cytosol of the cell.

During the glycolysis method, glucose molecules are sputtered and then separated into ATP and two in number along with two NADHs which are then used in the method of aerobic respiration.

This can be said to be a translation of the splitting of sugar and occurs with or without oxygen. In the case of aerobic respiration, the processes are converted into a single glucose particle and then into molecules of pyruvate that form energy in the form of two ATP molecules. Pyruvic acid has four ATP molecules which make up a part of energy consumption.

Aerobic Respiration

The normal and initial phase of glucose is produced in order to increase reactivity and to balance in decreasing order so that the molecules are cleaved into two particles by an enzyme called pyruvate aldolase. During the glycolysis phase, there is ATP. Four molecules of K , and two of NADH are formed when pyruvate is oxidised. It starts with glucose and then converts to glycogen.

The basic conversion of enzymes to catalyze the reaction and then convert it into two molecules of lactate is glycolysis in the absence of oxygen and forming two atoms of oxygenated pyruvate. In the absence of gas oxygen it is called anaerobic glycolysis which is done when oxygen deficiency is found.  

link feedback

They are the first step link reaction in the aerobic respiration steps that helps transport pyruvate to the mitochondria.

This type of respiration uses the available oxygen for future use and then oxidizes the sugar molecule to yield a higher yield of adenosine triphosphate. ATP is generated by substrate-level phosphorylation by high-energy compounds.

The link reaction is so named because it links the products of the process of glycolysis to the process of aerobic respiration inside the mitochondria. All of these are observed within the cytoplasm of the cell or the power house of the cell’s mitochondria. It consists of the cytosol space that is involved and the mitochondrial matrix.

Glycolysis is a cytoplasmic pathway that breaks down glucose into two three-carbon compounds and generates energy. Glucose is implicated by phosphorylation , with the help of the enzyme  hexokinase . Adenosine triphosphate (ATP) is used in this reaction and the product, glucose-6-p, inhibits hexokinase. Glycolysis occurs in 10 steps, of which five are in the early phase and five are in the payment phase.

Pyruvate is transported from the matrix of the mitochondria and is only one in number and carried by the carrier proteins seen on the membrane of the power house. The pyruvate is then observed to lose one of the carbon atoms to form the molecule of carbon dioxide . Then the formation of two carbon formulas is observed which help to form the group for the acetyl.

Acetyl groups are formed when their oxidase leads to the loss of one atom of the hydrogen atoms which reaches the oxidizer and then helps to reduce NAD to NADH and a hydrogen atom. The acetyl set compound is found to combine with coenzyme A which helps in the formation of acetyl coenzyme A also known as acetyl CoA.

Since the splitting of glucose molecules into two molecules of pyruvates, this helps in bonding the reaction which occurs twice in the glucose molecule. The method of link reaction process with each molecule of glucose produces link reaction acetyl it in simple words CoA (×2), NADH + H. Can be represented by +  (×2) and CO 2  (×2).

Krebs cycle

This is known as the tricarboxylic acid cycle and the citric acid cycle and is also a source of energy supply and is important for this respiration.

The cycle uses chemical energy that is seen to be available in the form of acetyl coenzyme A, to which it reduces the potency of the nicotinamide adenine dinucleotide known as NADH.

This cycle is said to be part of a great glucose metabolism where glucose is oxidised to form pyruvate which is then oxidized again and then enters the TCA cycle with the name acetyl-CoA. The pathway of these compounds is given to transport important compounds such as amino acids, fatty acids and porphyrins. It is one of the most important reaction sequences in biochemistry. 

Acetyl cycle begins with the name of Acetyl CoA. It begins with the formation of an enzyme of aldol addition and the reaction of acetyl CoA with oxaloacetate to form citrate. The citrate is formed by dehydrating the if then chain and then re-hydrated to obtain 2R,3S-isocitrate. It is the chain of reactions responsible for most of the energy needs. In complex organisms, the molecules produced in these reactions can be used as building blocks for a large number of important processes.

This is followed by the oxidation of enzymes and then a decarboxylation that leads to the result of 2-ketoglutarate . This process is further analyzed by converting 2-ketoglutarate to succinyl-CoA. The metabolite is then hydrolyzed to suicide and it is then linked by the phosphorylation of GP to GTP.

Denaturation by flavin adenine dinucleotide is observed for enzymes that are dependent on succinate dehydrogenase that produces fumarate. One approach is stereospecific hydration and after this process of stereospecific hydration fumarate is catalyzed by the enzyme fumarate and converted to L-malate. This is the second final step related. The Krebs cycle continually recycles, reusing substrates and enzymes with the overall reaction given by a single reaction.

The final step is NAD- which couples to the oxidation of L-malate to oxaloacetate and is then catalyzed by malate dehydrogenase and is then called the end of the Krebs cycle also known as TCA or the citric acid cycle. . Before the start of this cycle, glucose is first converted to acetyl-CoA and yields K2 of its molecule. Thus the cycle twice gives GRTP, FADH 2 and NADH 3. The reaction begins with the addition of acetyl-coenzyme A with oxaloacetate and water to form citrate.

oxidative phosphorylation

This is the process where energy is harnessed through a series of protein complexes embedded inside the inner mitochondria membrane.

It is also called the electron transport chain linked to phosphorylation or the end metabolites oxidation oath where cells are sued to oxidize nutrients along with releasing chemical energy to form ATP.

In eukaryotes they occur inside the mitochondria. All organisms that are aerobic carry out the process of oxidative phosphorylation. This is an important step for the aerobic respiratory phases and is actually the last step. This pathway is called extensive because it gives more energy than fermentation. This a. Generates potential energy in the form of  pH  gradient and electric potential across this membrane.

In eukaryotes, these redox reactions are catalyzed by a series of protein complexes within the cell’s inner membrane. Mitochondria , whereas, in prokaryotes, these proteins are located in the outer membrane of the cell. These linked sets of proteins are called electron transport chains . In eukaryotes, five main protein complexes are involved, whereas in prokaryotes many different enzymes are present, which use different types of electron donors and acceptors.

Energy is harvested in the bonds of glucose ad libitum which is released by cells in the Krebs cycle or TCA cycle which creates carbon dioxide and has donated electrons. The method of oxidative phosphorylation also uses these molecules and oxygen to make ATP . The cap is seen throughout the cell and requires energy. The energy transferred by electrons flowing through it is used to transport protons across the inner mitochondrial membrane, in a process called electron transport chain electron transport.

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