Intracellular parasitism refers to the strategy employed by certain pathogens to invade and replicate within the host's cells, thereby evading the immune system and exploiting the host's cellular machinery for survival and reproduction. This adaptation is seen in various bacteria, viruses, and protozoa, which have evolved specialized mechanisms to penetrate, manipulate, and thrive inside host cells.

Intracellular Parasitism

Certain pathogens

Host's cells

The immune system is a complex network of cells, tissues, and organs that work together to defend the body against harmful pathogens and maintain overall health. It involves both innate and adaptive responses, which recognize and neutralize foreign invaders while also retaining memory for faster future responses.

Immune System

Cellular machinery refers to the complex network of macromolecules and organelles within a cell that work together to perform the essential functions of life, such as energy production, protein synthesis, and cell division. This intricate system is driven by highly coordinated biochemical processes and is fundamental to maintaining cellular homeostasis and responding to environmental changes.

Cellular Machinery

Survival And Reproduction

Bacteria are single-celled microorganisms that exist in diverse environments and play crucial roles in processes such as nutrient cycling, fermentation, and as pathogens. They reproduce rapidly through binary fission and can acquire genetic material from other organisms, contributing to their adaptability and evolution.

Bacteria

Viruses are microscopic infectious agents that can only replicate inside the living cells of an organism. They are known for causing a wide range of diseases in humans, animals, and plants, and are characterized by their simple structure, consisting of genetic material (DNA or RNA) surrounded by a protein coat.

Viruses

Protozoa are a diverse group of single-celled eukaryotic organisms, often found in aquatic environments or as parasites in various hosts. They play crucial roles in ecological food webs and can cause significant diseases in humans and animals.

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