Quizlet: Which Of The Following Enzymes Is Unique To Proteins?

Enzymes are proteins that catalyze biochemical reactions, such as digestion, and are typically complex or conjugated proteins. They are specific for the substrate upon which they act, and they are usually composed of one or more polypeptide chains. Most enzymes are proteins, comprised of amino acid chains, and perform the critical task of lowering the activation energies of chemical reactions inside the cell.

Pepsin is an enzyme found in the stomach that aids in breaking down proteins, produced by the cells of the stomach lining. It is also responsible for the final chemical breakdown of carbohydrates, proteins, and other substances. The main enzymes involved in protein digestion are proteases, aminopeptidases, carboxypeptidases, and dipeptidases.

The correct answer is C. Pepsin is the substance that participates in the digestion of proteins and is an enzyme. Pepsinogen is the proenzyme of pepsin, and it is responsible for the breakdown of carbohydrates, proteins, and other substances.

In summary, enzymes are crucial catalysts in biochemical reactions, such as digestion, and they are specific for the substrate upon which they act. They are typically complex or conjugated proteins, and their specificity is influenced by their temperature and pH optima.

What are the 3 specific enzymes?

Examples of specific enzymesLipases: This group of enzymes help digest fats in the gut. Amylase: In the saliva, amylase helps change starches into sugars. Maltase: This also occurs in the saliva, and breaks the sugar maltose into glucose.

Enzymes help with specific functions that are vital to the operation and overall health of the body. They help speed up chemical reactions in the human body. They are essential for respiration, digesting food, muscle and nerve function, and more.

Each cell in the human body contains thousands of enzymes. Enzymes provide help with facilitating chemical reactions within each cell.

Since they are not destroyed during the process, a cell can reuse each enzyme repeatedly.

What enzymes are specific for protein digestion?

Pepsin is a stomach enzyme that aids in the digestion of proteins found in ingested food. It is secreted by gastric chief cells as an inactive zymogen called pepsinogen, while parietal cells within the stomach lining secrete hydrochloric acid, which lowers the stomach’s pH. A low pH (1. 5 to 2) activates pepsin, making it most effective at a pH of approximately 1. 5 to 2.

Food digestion is the breakdown of large food particles into smaller nutrients for energy production, growth, and cellular repair. It begins with ingestion and ends with defecation. The gastrointestinal tract processes food into mechanical and chemical forms, with mechanical digestion involving the physical degradation of large food particles into smaller pieces for access by digestive enzymes. Chemical digestion involves the enzymatic cleavage of proteins, carbohydrates, and fats into tiny amino acids, sugars, and fatty acids.

Food enters the mouth through saliva and gets chewed through mastication, creating a mass called a food bolus. The food bolus then travels down the esophagus via peristalsis before reaching the stomach. The stomach also secretes a mixture of compounds known as “gastric juice”, including water, mucus, hydrochloric acid, pepsin, and intrinsic factor. Pepsin breaks down proteins into smaller peptides and amino acids that can be easily absorbed in the small intestine.

However, pepsin is not essential for life, as protein digestion can still occur throughout the small intestines through pancreatic enzymes like trypsin, chymotrypsin, elastase, and carboxypeptidase. Pepsin remains structurally stable until at least a pH of 8, allowing it to be reactivated as long as the pH remains below 8. This characteristic is relevant in the pathophysiology of laryngopharyngeal reflux.

Which of the following enzymes is specific for proteins?

Explanation: The enzyme that is specific for proteins is trypsin. Trypsin is a digestive enzyme that breaks down proteins by cutting the peptide bonds between amino acids.

Which of the enzymes act on proteins?

Proteases : So, cleavage of protein means breaking the peptide bond with an enzyme known as Protease. Other than proteases there are two more pancreatic enzymes in the small intestine for breaking proteins into amino acids are chymotrypsin and trypsin.

Which of the following enzymes are important in protein digestion?

Answer and Explanation: Both pepsin and chymotrypsin are important enzymes in protein digestion. These enzymes hydrolyze (break) the peptide bonds between amino acids and produce short peptides from a protein molecule.

Is enzyme specific for protein?

Not all enzymes are highly specific. Digestive enzymes such as pepsin and chymotrypsin, for example, are able to act on almost any protein, as they must if they are to act upon the varied types of proteins consumed as food. On the other hand, thrombin, which reacts only with the protein fibrinogen, is part of a very delicate blood-clotting mechanism and thus must act only on one compound in order to maintain the proper functioning of the system.

When enzymes were first studied, it was thought that most of them were “absolutely specific”—that they would react with only one compound. In most cases, however, a molecule other than the natural substrate can be synthesized in the laboratory; it is enough like the natural substrate to react with the enzyme. Use of these synthetic substrates has been valuable in understanding enzymatic action. It must be remembered, however, that, in the living cell, many enzymes are absolutely specific for the compounds found there.

All enzymes isolated thus far are specific for the type of chemical reaction they catalyze—i. e., oxidoreductases do not catalyze hydrolase reactions, and hydrolases do not catalyze reactions involving oxidation and reduction. An enzyme therefore catalyzes a specific chemical reaction but may be able to do so on several similar compounds.

What enzymes are used for protein?

Protease enzymes are responsible for breaking down proteins in our food into amino acids. Then different enzymes join amino acids together to form new proteins needed by the body for growth and repair. Protease enzymes are produced in your stomach, pancreas and small intestine.

Why are enzymes specific?

Enzymes are specific. because different enzymes have differently shaped active sites. The shape of the active site of an enzyme is complementary to the shape of its specific substrate close substrateA substance on which enzymes act.. This means they are the correct shapes to fit together.

Which enzymes is important for breaking down protein?

Protease (made in the pancreas; breaks down proteins)

Digestive enzyme supplements have gained popularity for their claims of treating common forms of gut irritation, heartburn and other ailments. But how do digestive enzymes work, and who really needs to add them to their diet? Morgan Denhard, a registered dietitian at Johns Hopkins Medicine, provides the answers you need.

What are digestive enzymes, and what do they do?. Naturally occurring digestive enzymes are proteins that your body makes to break down food and aid digestion. Digestion is the process of using the nutrients found in food to give your body energy, help it grow and perform vital functions.

“When you eat a meal or a snack, digestion begins in the mouth,” explains Denhard. “Our saliva starts breaking down food right away into a form that can be absorbed by the body. There are a lot of different points in the digestive process where enzymes are released and activated.”

Which of the following is a protein enzyme?

What are the names of the two protein digesting enzymes?

Pepsin and trypsin are the enzymes that help in digestion of proteins.