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Catalyst. Enzymes, which reduce the activation energy required by chemistry, but the composition does not change before and after the reaction, but the enzyme activity tends to decrease over time. Hydrolysis of proteins by enzymes is a complex organic reaction, but the principle is generally the same as below.
acids, alkalis. Catalyst. Acids, both organic and inorganic, weak and strong electrolytes.
All are out of [h] ions. That is, it is to promote the ionization of water into [H+] and [Oh-], but acid makes the water more in the direction of [H+]. Protein hydrolysis, you all know, the common point can be understood as adding water [h] and [oh].
The hydrolysis of protein is to add [H] to the place where [H] is lost after it is broken down into amino acids, and in the same way, [OH] is added to the loss [OH], that is, hydroxyl group. For alkalis. It is only in the opposite direction of water ionization to acid.
If a strong base is used for example, NaOH is used, not only [OH] is added, but it is also possible that the strong base reacts with [OH] on the amino acid [OH] [if the amino acid is added [OH], [-COOH]] can be formed, and [-coona] is generated
Generally. Proteolysis is plus"water"Enzymes, acids or alkalis can accomplish this task, so that's what you need to do.
These are the accumulation of knowledge details. It's tiring.
Although it was only a short time after the college entrance examination, I still remember so much. I'm very happy to be able to help people.
This year's Guangxi College Entrance Examination. Stuffy.
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Because enzymes, acids and bases act as catalysts.
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Acids or bases have a chemical reaction with proteins, while enzymes only reduce the activation energy in the chemical reaction, not with sugars or proteins. In other words, the decomposition of sugars and proteins is normally 100,000 J, but in an enzymatic reaction it may only be 1,000 J, which greatly reduces the activation energy required for the reaction, i.e., even without enzymes, as long as the energy reaches 100,000 J, then the protein can be decomposed.
The concept of activation energy: the energy required for a molecule to change from a normal state to an active state prone to chemical reactions.
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For sugars, proteins, etc., to be hydrolyzed, water molecules must be involved in the reaction, for example, if a chain protein molecule is hydrolyzed to generate n amino acid molecules, it is necessary to consume n minus 1 water molecule.
Proteins are hydrolyzed at specific sites under the action of enzymes, and complex organic reactions occur, but the final reaction principle is similar to that of acids or bases, which basically provide water molecules to participate in the reaction and hydrolysis.
So sugars, proteins, etc., can only be hydrolyzed under the conditions of enzymes, acids or bases.
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3. The catalytic effect of all enzymes is specific, and proteases can only destroy the spatial structure of proteins to make them polypeptide chains, and it is peptidase that decomposes polypeptides into amino acids, but some proteases can also destroy some peptide bonds, such as pepsin catalyzes the breaking of peptide bonds such as phenylalanine, tyrosine, tryptophan, leucine, glutamate, glutamine, etc., so that macromolecular proteins become smaller molecules of polypeptides Trypsin can hydrolyze the peptide bonds formed by the carboxyl groups of lysine and arginine
Therefore, d
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As far as I know, what I know upstairs is talking about digging mistakes.
Enzymes are needed in the process of protein synthesis, and many kinds of enzymes are needed, such as aminoacyl tRNA synthesis of dust-containing ribozyme, debrotherincarbylase, GTPase, aminopeptidase, transpeptidase, etc.
Hydrolysis reaction formula-[NHCH(R)Co]N- +NH2ONH2NCH(R)CoOH
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(1) Hydrolysis of halogenated hydrocarbons --- can only be carried out under alkaline conditions!
2) Ester --- hydrolysis can only be carried out under alkaline or acidic conditions!
3) Disaccharides can only be carried out under hydrolyzed acidic conditions ---!
4) Hydrolysis of polysaccharides --- can only be carried out under acidic or enzymatic conditions!
5) Protein --- hydrolysis can only be carried out under alkaline, acidic, or enzymatic conditions!
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Hello! Inorganics require acid-base conditions, while organic substances in food such as sugars, proteins, fats, cholesterol, etc., all require enzymes to be absorbed by the body.
It only represents a personal opinion, don't spray if you don't like it, thank you.
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Sucrase is an enzyme that can hydrolyze sucrose molecules, which is capable of hydrolyzing sucrose molecules into two monosaccharides, glucose and fructose.
The sucrose molecule contains a -1,2 glycosidic bond, which is the chemical bond that connects glucose and fructose molecules. Thus, sucrase is able to hydrolyze this -1,2 glycosidic bond, breaking down the sucrose molecule into the two monosaccharide molecules of which it is composed.
It is important to note that sucrase can only hydrolyze the -1,2 glycosidic bonds of sucrose and not other types of glycosidic bonds. For example, the -1,4 glycosidic bond formed by the combination of glucose and galactose with reed cannot be hydrolyzed by sucrase.
What is protein denaturation?
Because many people don't like to eat pork, and think that eating pork can make them fat.
The dried protein content of cockroaches is 60% to 70%.
The antibodies in the cockroach have a significant killing effect on cancer cells, and its extract is promoted by modern medical institutions to be used in various types of cancer, and the dry protein content of cockroaches is 60% 70%, which has a good attractant effect on fish. It has a high utilization value, but the utilization and the first unit is less, the scale of cockroach breeding is less, and the market potential of breeding is large, but the current market demand is also very small. >>>More
Every tissue of the human body: hair, **, muscles, bones, internal organs, brain, blood, nerves, endocrine, etc. are composed of proteins, which constitute antibodies, provide heat, and mediate physiological functions: detoxification and maintenance of the normal function of the nervous system.
Denatured proteins only have the destruction of spatial conformation, and it is generally believed that the essence of protein denaturation is secondary bonds, and the destruction of disulfide bonds does not involve changes in the primary structure. >>>More