Compare the differences and characteristics between biological oxidation and abiotic oxidation.

The differences and characteristics between biological oxidation and abiotic oxidation are as follows:

Difference:

1. oxidation mode: biological oxidation mainly refers to the process that nutrients such as sugar, fat and protein are oxidized and decomposed in organisms, and energy is gradually released, and finally CO2 and H2O are generated. Abiotic oxidation is generally an oxidation process involving oxygen in natural environment, such as combustion.

2. Reaction environment: biological oxidation is carried out in cells, with strict cell positioning, mild reaction environment, gradual enzymatic reaction, gradual release of energy, easy capture of energy and high ATP production efficiency. Abiotic oxidation is carried out in natural environment, such as combustion, and the reaction environment is fierce.

3. Energy conversion: biological oxidation indirectly obtains oxygen from material energy through the dehydrogenation of water, and finally converts organic matter into carbon dioxide and water to release energy. Abiotic oxidation In the combustion process, carbon and hydrogen in the substance directly combine with oxygen to generate CO2 and H2O, and at the same time release a lot of energy.

Features:

1, biological oxidation follows the general law of redox reaction, and the oxidation modes of substances include oxidation, dehydrogenation and electron loss. In vivo and in vitro, the oxygen consumption, final products (CO2, H2O) and energy released in abiotic oxidation are the same.

2. Biological oxidation is carried out under the catalysis of enzyme, the reaction is carried out step by step, the energy is gradually released, and it is easy to be captured. The combustion and other reactions in abiotic oxidation are relatively fast, and the energy release is relatively concentrated.

3. The products of biological oxidation are carbon dioxide and water, which are harmless to cells and can participate in other biochemical reactions in organisms. The products of abiotic oxidation, such as burning ashes, are non-reusable substances.

4. Biological oxidation is carried out in cells, which is strictly controlled by cell structure and cell metabolism, with high stability and safety. Abiotic oxidation such as combustion is carried out in the natural environment, which is influenced by many factors such as environmental temperature, humidity and oxygen concentration, and has high uncertainty and danger.

The role of biological oxidation and abiotic oxidation;

The main function of biological oxidation is to provide energy. In organisms, nutrients in food are broken down into small molecules, and then energy is released through oxidation reaction. This process is called cellular respiration. The main reaction of cell respiration is the oxidation of sugar, in which oxygen takes part as oxidant. In this process, sugar is oxidized and decomposed into smaller molecules, and at the same time, energy is released for use by organisms.

Biological oxidation can also produce some important metabolites, such as amino acids and fatty acids, which participate in the construction of cells and tissues and maintain the normal function of organisms.

Abiotic oxidation refers to the chemical reaction between inorganic or organic compounds, which does not involve the participation of organisms. Abiotic oxidation widely exists in nature, such as metal corrosion and combustion process.

Abiotic oxidation is also widely used in chemical industry, such as the production of synthetic resin, synthetic fiber, coating, rubber and other chemicals. In addition, abiotic oxidation can also be used in the field of environmental protection, such as treating wastewater and waste gas.

In abiotic oxidation, substances are oxidized and decomposed into smaller molecules, and energy is released at the same time. These energies can be used for various purposes, such as power generation and heat energy.