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Difference Between Chemotaxis and Phagocytosis | Chemotaxis vs Phagocytosis


The key difference between chemotaxis and phagocytosis is that the chemotaxis is a directed migration of cells or an organism along a chemical concentration gradient while phagocytosis is a mechanism that engulfs foreign infectious particles in order to neutralize or destroy them.

Leukocytes are important cells of the immune system. They are white blood cells. Some leukocytes are phagocytes. Phagocytes use phagocytosis to engulf foreign particles. Monocytes, neutrophils, and macrophages are some examples of phagocytes. In order to reach antigens or foreign particles, phagocytes use chemotaxis. Chemotaxis is the movement of cells or organisms towards or away from the chemical stimuli. Furthermore, phagocytes and immune cells mobilize to the site of infection, tissue injury and immune reactions through chemotaxis.

CONTENTS

1. Overview and Key Difference
2. What is Chemotaxis 
3. What is Phagocytosis
4. Relationship Between Chemotaxis and Phagocytosis
5. Side by Side Comparison – Chemotaxis and Phagocytosis in Tabular Form
6. Summary

What is Chemotaxis?

Chemotaxis is the movement of cells or organisms towards or away from the chemical stimuli. It is one of the most important mechanisms used by phagocytes to mobilize into the site of infection or tissue injury. Moreover, chemotaxis is important for many types of cells and organisms. Bacteria find food by chemotaxis. Furthermore, they run away from harmful chemicals due to chemotaxis. In higher organisms, sperms swim towards the egg cells due to chemotaxis.