ADVERTISEMENTS: The following points highlight the eight important cytoplasmic inclusions found in bacteria. Acidophilic Intracytoplasmic Inclusion Bodies (eosinophilic) Inclusions are stored nutrients, secretory products, and pigment granules. Several organelles are present in prokaryotic cells except for ribosomes, as in eukaryotes. D) store energy rich compounds and position cells in the appropriate environment for survival. (image will be uploaded soon) Examples of Viral Inclusion Bodies. Poly-β-hydroxybutyrate 4. Inclusion bodies can be present in a bacterium or eukaryotic cell in the form of cystic lesions, fungal infections, virus infected cells, bacterial infections, autoimmune diseases, neoplasms and blood dyscrasias. They are found both in prokaryotes and eukaryotes. This is an important difference between cell organelles and cell inclusions. Glycogen 5. There are a wide variety of inclusion bodies in different types of cells. In prokaryotic cells, they are mainly formed to store reserve materials. Prokaryotic Cell is distinguished by a specialized segregated shape of the cell membrane called mesosome. These are not bounded by any membrane system and lie free in the cytoplasm. Membrane-Bound or Not Cellular Components Located Within the Cytoplasm. B) protect DNA. Cellular inclusions in prokaryotic cells serve to A) store energy rich compounds. Gas Vacuoles 6. Prokaryotes cells are extremely simple in their structure. e.g. Examples of inclusions are glycogen granules in the liver and muscle cells, lipid droplets in fat cells, pigment granules in certain cells of skin and hair, and crystals of various types. C) position cells in the appropriate environment for survival. phosphate granules, cyanophycean granules, and glycogen granules. Polyphosphates 3. Inclusion bodies that are found in the cytoplasm are nothing but the stored reserves (glycogen) or aggregates of proteins. B. PROKARYOTIC CELL ANATOMY. Cytoplasmic Inclusion # 1. They typically represent sites of viral multiplication in a bacterium or a eukaryotic cell, and usually consist of viral capsid proteins. Prokaryotes have a special role in the form of inclusions. Magnetosomes 7. f. Inclusion Bodies and Organelles Used for Photosynthesis. Ribosomes 2. 3. The cell inclusions may occur freely inside the cytoplasm (e.g., cyanophycean granules, volutin or phosphate granules, glycogen granules) or covered by 2-4 nm thick non-lipids, non-unit protein membrane (e.g., gas vacuoles, carboxysomes, sulphur granules, PHB granules). The Prokaryotic cells are not as complex as the eukaryotic structures. The cytoplasmic inclusions are: 1. Inclusion bodies are nuclear or cytoplasmic aggregates of stainable substances, usually proteins. Fundamental Statements for this Learning Object: 1.Oxygenic photosynthesis uses water as an electron donor and generates oxygen during photosynthesis. Reserve material in prokaryotic cells is stored in the cytoplasm in the form of inclusion bodies. Inclusion bodies have a non-unit lipid membrane. II. THE PROKARYOTIC CELL: BACTERIA. Cell inclusions are non-living structures present in the cytoplasm of a prokaryotic cell. It took 3 million years for the first cell to have existed on the earth. These contain organic compounds such as starch, glycogen or lipid and act as food reserves. These are simply cell … If we split the word ‘PROKARYOT’, we get two words- Pro, meaning Primitive and Karyon, which means the nucleus. Ribosomes: Ribosomes (Fig. Prokaryotic Cell - I. Also, cell organelles exclusively occur in eukaryotes while cell inclusions occur in both eukaryotic and prokaryotic cells. Carboxysomes. Inclusion bodies are non-living chemical compounds and by-products of cellular metabolism. Inclusions are diverse intracellular non-living substances that are not bound by membranes. 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