Prokaryotic and Eukaryotic Cells
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Every organism is composed of one of two radically different types of cells : prokaryotic cells or eukaryotic cells. Prokaryotic cells are found only the kingdom Monera, which consists of bacteria and cyanobacteria (formerly called blue-green algae).The prokaryotic cells has no true nucleus. Its genetic material is concentrated instead in a region called the nucleoid, but no membrane separates this region from rest of the cell. In contrast Eukaryotic cells are found in four of five kingdoms of life- protists,plants,fungi, and animals. Eukaryotic cell has true nucleus enclosed by a membranous nuclear envelope. The entire region between the nucleus and the membrane bounding the cell is called the cytoplasm.
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