吞噬作用和生殖细胞增多症之间的差异

Thekey differencebetween phagocytosis and pinocytosis is thatphagocytosis is a form ofendocytosiswhich uptakes solids through the质膜to the cell while pinocytosis is another form of endocytosis which uptakes fluids including solutes and small molecules through the plasma membrane to the cell.

内吞作用是一种机制，细胞摄入大分子和其他悬浮颗粒，包括细胞部位，大分子分子聚集体和外异物颗粒进入细胞。胞吞作用is the opposite mechanism of endocytosis by which cells exclude substances from the cells. Exocytosis takes place mainly in secretory cells. There are two types of endocytosis based on the nature of the particles that are taken into living cells. They are phagocytosis and pinocytosis. The mechanism used in both processes is the same. They formvesicles围绕材料将其带入其中。这两个过程都是主动过程。因此，您可以观察到这些过程发生的表面附近的线粒体。

内容

1.Overview and Key Difference
2.What is Phagocytosis
3.What is Pinocytosis
4.Similarities Between Phagocytosis and Pinocytosis
5.并排比较 - 表格形式的吞噬作用与皮细胞增多症
6。概括

什么是吞噬作用？

吞噬作用，也称为细胞的饮食，是通过内吞作用大于直径约0.5μm的固体颗粒的摄入量。在这种情况下，质膜向前融合并围绕细胞表面附近的颗粒形成吞噬囊泡，称为吞噬体。然后lysosomescome and fuse with these phagosomes and release their digestive enzymes to digest the content in phagosomes.

吞噬作用是大多数原生动物在内的过程，包括吞噬吞噬并消化其猎物。在上等动物中，免疫系统的中性粒细胞和巨噬细胞利用这一过程来抵抗诸如细菌，病毒，尘埃颗粒，死细胞，细胞部分和其他废物等异物。

什么是皮细胞增多？

Pinocytosis is the active intake of droplets of extracellular fluid along with small particles. Because of the nature of the material involved in pinocytosis, it is a form of cell drinking. It helps to intake important solutes such as insulin and lipoproteins in concentrated form.

另外，离子，糖和氨基酸也通过这种方法进入细胞。在这种情况下，首先具有微小颗粒的细胞外流体粘附在细胞膜上的特定受体上。然后，该特定区域的质膜起伏并围绕颗粒形成膜结合的囊泡，称为松树粒。然后，松下体进入细胞质，并释放含量。在血液毛细血管排列的细胞中，可以经常看到皮细胞增多。

What are the Similarities Between Phagocytosis and Pinocytosis?

• Phagocytosis and pinocytosis are two types of endocytosis.
• Both methods take in materials through the plasma membrane by forming vesicles.

What is the Difference Between Phagocytosis and Pinocytosis?

Phagocytosis is the intake of solid particles larger than about 0.5µm in diameter, whereas pinocytosis is the intake of droplets of extracellular fluid along with small particles. So, this is the key difference between phagocytosis and pinocytosis. Generally, phagocytosis is a mechanism for defensive purposes while pinocytosis is a mechanism to take in important materials into cells. Thus, this is the functional difference between phagocytosis and pinocytosis.

Moreover, phagocytosis forms vesicles called phagosomes, whereas pinocytosis forms vesicles called pinosomes. Also, unlike in pinocytosis, the involvement of lysosomes can be seen in phagocytosis. Hence, this is a significant difference between phagocytosis and pinocytosis. Cells uptake solid particles such as bacteria, dust, cellular parts, etc, by phagocytosis; hence, it is a type of cell eating. On the other hand, cells uptake fluids including ions, sugars, amino acids, small molecules, etc, into cells by pinocytosis; hence, it is a type of cell drinking. Therefore, this is an important difference between phagocytosis and pinocytosis. Besides, a further difference between phagocytosis and pinocytosis is that pinocytosis often occurs in the cell lining of blood capillaries, whereas phagocytosis is used by white blood cells such as neutrophils and macrophages, and protozoan.

概括– Phagocytosis vs Pinocytosis

Phagocytosis and pinocytosis are two mechanisms by which cells uptake materials inside through the plasma membrane. The key difference between phagocytosis and pinocytosis lies in the materials taken inside. Phagocytosis uptakes solid materials while pinocytosis uptakes fluids including solutes. Furthermore, phagocytosis is a mechanism that helps in defense while pinocytosis is a mechanism for taking materials inside. Furthermore, at the end of the phagocytosis, exocytosis occurs; however, exocytosis does not occur in pinocytosis. Thus, this is the summary of the difference between phagocytosis and pinocytosis.

Reference:

1.“皮细胞增多。”。2014年11月20日Available here.
2. “Phagocytosis.” Khan Academy,Available here.

Image Courtesy:

1. Grahamcolm在英语Wikipedia上的“吞噬作用” 2(CC BY-SA 3.0)viaCommons Wikimedia
2. jacek fh撰写的皮细胞增多 - 修改图像：内吞作用类型。Commons Wikimedia