Classification of microorganism

microorganism|Classification|Introduction|Bacteria|Fungi|Protozoa|Algae| Virus| #ThaproScience The uni-cellular (single celled) or multi cellular organisms which are invisible to the naked eye when taken individually are called microorganisms. They can be divided into five major types: bacteria, fungi, protozoa, algae, and viruses. Bacteria Bacteria are unicellular organisms. The cells are described as prokaryotic because they lack a nucleus. They exist in four major shapes: bacillus (rod shape), coccus (spherical shape), spirilla (spiral shape), and vibrio (curved shape). they divide by binary fission; and they may possess flagella for motility. The difference in their cell wall structure is a major feature used in classifying these organisms. According to the way their cell wall structure stains, bacteria can be classified as either Gram-positive or Gram-negative when using the Gram staining. Fungi Fungi are eukaryotic cells (with a true nucleus). Most fungi are multice