What is Biological Oxidation? Significance of biological oxidation

1.Concept: The process of oxidizing and decomposing organic matter in the cells of living organisms to produce carbon dioxide and water, and releasing a large amount of energy is called biological oxidation. Also known as cellular respiration or tissue respiration.

2.Characteristics: Biological oxidation and in vitro combustion of organic substances are chemically identical, following the general laws of redox reactions, with the same amount of oxygen consumed, the final product and the energy released.

1) Intracellular, gradual enzyme-catalyzed in a mild environment.

2) The energy is released gradually. Some of it is emitted in the form of heat energy to maintain body temperature, and part of it is stored in the form of chemical energy for the energy needs of life activities (about 40%).

3) The H2O generated by biological oxidation is produced by the combination of hydrogen and oxygen removed from metabolites, and H2O is also directly involved in the biological oxidation reaction. CO2 is produced by the decarboxylation of organic acids.

4) The rate of biological oxidation is automatically regulated by the cell.

1) Biological oxidation: the oxidation of all metabolites in the organism is also called tissue respiration or cellular respiration because it is carried out in the cell.

Prokaryotes occur on the plasma membrane and are associated with energy production.

Biological oxidation is the process of oxidizing hydrogen and electrons from metabolites in living organisms through a series of enzymatic reactions to synthesize water and release energy. Oxidase is a protein containing copper or iron, which can activate molecular oxygen and promote the direct oxidation of metabolites by oxygen. Important are cytochrome oxidase, which can oxidize the reduced form to the oxidized form, and can also transfer the electrons released by hydrogen to the molecular oxygen for activation.

It is abundant in the heart muscle. In addition, there are peroxidase, catalase, etc.

Features of biological oxidation:

1) It is an enzyme-catalyzed oxidation process carried out in the cell, and the reaction conditions are mild (pH is about 7 in aqueous solution and room temperature).

2) In the process of biological oxidation, it is accompanied by the generation of biological reduction reactions.

3) Water is the oxygen donor of many biological oxidation reactions, and directly participates in the oxidation reaction through water dehydrogenation.

4) In biological oxidation, the oxidation and hydrogenation of carbon are asynchronous. The protons and electrons that are removed during the oxidation process are usually transferred to oxygen by various carriers such as NADH and eventually produce water.

The above content reference:

Biological oxidation is the process by which hydrogen and electrons in metabolites in an organism are synthesized into water and energy released through a series of enzymatic reactions and oxidation. It also refers to the series of oxidation processes that occur in living organisms.

The process of oxidizing and decomposing organic matter in the cells of living organisms to produce carbon dioxide and water, and releasing a large amount of energy is biological oxidation.

I don't know what biological oxidation is.

Provides the body with available energy.

Biological oxidation: Within specific organelles (mitochondria), with the participation of O2, macromolecular substances are broken down to produce CO2, and at the same time, the process of catabolic energy stored in ATP is called cellular respiration, also known as biological oxidation or cellular oxidation.

Characteristics: It is essentially a series of redox reactions catalyzed by enzyme systems in cells.

The reaction proceeds gradually, and the energy is released gradually.

The reaction is carried out under constant temperature and pressure.

The reaction requires the participation of water.

The energy produced is ultimately stored in the high-energy phosphate bonds of ATP.

There are three ways of biological oxidation: dehydrogenation, oxygenation, and deelectron, biological oxidation is the process of hydrogen and electrons removed from metabolites in living organisms, through a series of enzymatic reactions and oxidation to synthesize water, and release energy, which also refers to a series of oxidation processes of substances in living organisms.

Biological oxidation is divided into three types: fermentation, aerobic respiration, and anaerobic respiration. Aerobic respiration refers to the process in which cells or microorganisms completely oxidize and decompose organic matter (usually mainly to decompose glucose) through the catalytic action of a variety of enzymes with the participation of oxygen, produce carbon dioxide and water, release energy, and synthesize a large amount of ATP.

There are three characteristics of biological oxidation:

1) Intracellular, gradual enzyme-catalyzed in a mild environment.

2) The energy is released gradually.

3) The rate of biological oxidation is automatically regulated by the cell.

The oxidation of organic matter in living organisms is called biotic oxidation. Biological oxidation usually requires the consumption of oxygen, so it is also called respiration.

1. Dehydrogenation: The substrate is dehydrogenated under the catalysis of dehydrogenase.

2. Oxygenation: Oxygen atoms or oxygen molecules are added to the substrate molecule.

3. Deelectron: The substrate sheds electrons to increase the valence of its atoms or ions and is oxidized, and the reaction of losing electrons is oxidation, and the reaction of gaining electrons is a reduction reaction.

There are three ways in which biological oxidation can be carried out:

1.Dehydrogenation: The substrate is dehydrogenated by dehydrogenase.

2.Oxygenation: Oxygen atoms or molecules are added to the substrate molecule.

3.Deelectron: The substrate sheds electrons to increase the valence of its atoms or ions and is oxidized. The reaction in which electrons are lost is oxidation, and the reaction in which electrons are gained is reduction.