外酶和内氧酶之间有什么区别

The外酶和内氧酶之间的关键区别is that exoenzyme is an enzyme secreted by a cell that functions outside that cell, while endoenzyme is an enzyme secreted by a cell that functions within that cell.

An enzyme is a protein that acts as acatalystin living cells. It regulates the rate at which biochemical reactions proceed without being altered. All biochemical reactions that occur within living organisms are catalyzed by enzymes. An enzyme converts substrates into products. Normally, all metabolic reactions in the cell need enzyme catalysis in order to occur at rates fast enough to maintain cell activities. Exoenzyme and endoenzyme are two types of enzymes secreted by a cell.

内容

1.Overview and Key Difference
2.什么是外酶
3.What is an Endoenzyme
4.相似之处 - 外酶和内氧酶
5.Exoenzyme vs Endoenzyme in Tabular Form
6.Summary – Exoenzyme vs Endoenzyme

什么是外酶？

Exoenzyme is an enzyme that functions outside the cell. Bothprokaryotic and eukaryotic cellsproduce exoenzymes. Exoenzyme is a crucial component of many biological processes. Most often, an exoenzyme participates in the breakdown of larger macromolecules. The breakdown of larger macromolecules is a critical process that allows constituents to pass through the cell membrane and enter the cell.

在人类和其他复杂的生物中，消化过程是外酶活性的众所周知的例子。消化是一个复杂的过程，其中固体食物在通过消化系统时被外酶分解为较小的单位。然后，生成的小分子进入细胞，并用于细胞的各种功能。此外，细菌和真菌还产生外酶以消化其营养。因此，这些生物对于研究实验室中外酶的功能非常有用。

Some pathogenic species also use exoenzyme as a virulent factor. Exoenzymes assist in the spread of these pathogenic microorganisms. In addition to their role in the biological system, some microbial exoenzymes have been used by humans since ancient times for different purposes such as food production, textile production, biofuels, and paper industry. Furthermore, another important of microbial exoenzymes is thebioremediationof terrestrial and marine environments. Amylase, pectinase, lipase, pepsin, trypsin, coagulase, kinase, hyaluronidase, hemolysin, and necrotizing enzyme are some examples of exoenzymes.

什么是内聚合酶？

Endoenzyme is an enzyme that functions within a cell. It is also called an细胞内酶。大多数酶属于这一类别。单个酶可能具有内聚酶和外酶功能。

For example, glycolytic enzymes ofKreb’s cyclehave both functions. These enzymes typically catalyze millions of reactions that occur in the metabolic pathways, such as Kreb’s cycle in mitochondria and photosynthetic reactions in the chloroplast. Moreover, the lysosome contains many endoenzymes that are mainly responsible for destroying old cells.

What are the Similarities Between Exoenzyme and Endoenzyme?

• 胞外酶和内酶两种类型的酶secreted by a cell.
• 它们是蛋白质。
• Both are made up of amino acids.
• They catalyze biochemical reactions.
• Both types of enzymes are present in eukaryotes as well as prokaryotes.

外酶和内氧酶之间有什么区别?

外酶是一种由细胞外功能的细胞分泌的酶，而内又酶是由该细胞内功能的细胞分泌的酶。因此，这是外酶和内氧酶之间的关键区别。此外，外酶在细胞之外活跃，而内又酶在细胞内部活跃。

The following infographic lists the differences between exoenzyme and endoenzyme in tabular form for side by side comparison.

Summary – Exoenzyme vs Endoenzyme

胞外酶和内酶两种类型的酶that are secreted by a cell. Exoenzyme is active outside the cell while endoenzyme is active inside the cell. Thus, this is the key difference between exoenzyme and endoenzyme.

Reference:

1. Davis, Jack. “What Is an Exoenzyme?” News, 19 June 2020.
2. “Cell Enzyme。” Cell Enzyme – an Overview | ScienceDirect Topics.

Image Courtesy:

1.“”C3 exoenzyme 2C8C” e a s - 自己的工作(CC BY-SA 3.0)via Commons Wikimedia
2. “Lysosomes Digestion” By Jordan hawes – Own work(CC BY-SA 4.0)via Commons Wikimedia