An extracellular enzyme is one which reacts outside of the cell. An intracellular enzyme is one which reacts inside of the cell.
Lysosomes
Lysosomes are organelles that release enzymes for intracellular digestion. They contain hydrolytic enzymes that break down cellular waste and foreign materials.
Lyosomes
The Golgi apparatus. It creates lysosomes.Lysosome: Lysosomes contain hydrolytic enzymes necessary for intracellular digestion. They are common in animal cells, but rare in plant cells.
Intracellular enzymes are enzymes that function inside the cell, where they participate in various metabolic reactions. Extracellular enzymes, on the other hand, are enzymes that are secreted outside the cell to catalyze reactions in the extracellular environment, such as breaking down larger molecules into smaller ones for nutrient absorption.
During protein kinase activation, enzymes phosphorylate many other enzymes
In the process of intracellular digestion, lysosomes are the main organelles. Lysosomes contain enzymes that are made by cells, and their primary function is to digest things.
Examples of intracellular enzymes include catalase, an enzyme that breaks down hydrogen peroxide in cells, and DNA polymerase, an enzyme involved in DNA replication. Additionally, enzymes like lipase and protease function intracellularly in breaking down lipid and protein molecules, respectively.
The lysosomes perform intracellular digestion.
The main cellular structures involved in intracellular digestion are lysosomes and the Golgi apparatus. Lysosomes contain digestive enzymes that break down complex molecules, while the Golgi apparatus modifies and packages these enzymes for transport to the lysosomes. Ribosomes are responsible for protein synthesis and do not directly participate in intracellular digestion.
Extracellular enzyme activity is easier to determine because extracellular enzymes are released outside the cell and can be directly measured in the surrounding environment. In contrast, intracellular enzymes are contained within the cell, requiring cell disruption to access them for measurement, which can introduce variability and complexity to the assay.
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