PPT-FLAGELLA Bacterial flagella are long, thin appendages free at one end and attached to

Bacterial flagella are so thin 1520 nm depending on the species that a single flagellum cannot be seen by light microscopy unless it is stained to increase its diameter Flagellar Structure The bacterial flagellum is composed of three parts. . Burnside, Glenn, . Vanscoy. , White, Conrad. Actin. Filaments . Actin Filaments. Main Function: to help the contraction of cells . Found in: eukaryotic cells only. If Actin filaments were not present: myosin molecules would be scattered throughout the cell, and the cell would very disorganized and . Motility is closely linked with chemotaxis, the ability to orientate along certain chemical gradients.. A large number of bacteria are motile. . . Most . possess one or more flagella on their surface that allow them to swim. . MBIO . 460. Lecture 4. Dr. . Turki. . Dawoud. 2. nd. Semester. 1436/1437 H . OTHER CELL SURFACE STRUCTURES AND INCLUSIONS. 4. 9 Cell Surface Layers, . Pili. , and . Fimbriae. Many prokaryotic organisms secrete slimy or sticky materials on their cell surface. . Monotrichous – single flagellum at one end. Lophotrichous – small bunches arising from one end of cell. Amphitrichous – flagella at both ends of cell. Peritrichous – flagella dispersed over surface of cell; slowest. Bacteria . One of our kingdoms. Bacteria. Bacteria are minute microscopic prokaryotes. They are unicellular organisms, which are usually identified by their specific activities, more than their general . Motility is closely linked with chemotaxis, the ability to orientate along certain chemical gradients.. A large number of bacteria are motile. . . Most . possess one or more flagella on their surface that allow them to swim. . Chermak. Cilia Function. Cilia are hair-like organelles located on the outside of eukaryotic cells.. There are motile cilia and non-motile cilia.. Motile cilia move in a wave-like motion to move particles across the surface of the cell, or to allow unicellular organisms to move.. Jonathan Timothy . Adi. What are Flagella and Cilia?. Flagella and Cilia are the locomotion appendages of unicellular Eukaryotes. Basically they are the limbs of cells!. They can act like . legs, moving from place to place.. :. contain enzymes that transfer . hydrogen. from various substrates to . oxygen. .. Functions of peroxisomes:. Hydrogen peroxide . (H. 2. O. 2. ) is a poison, but the peroxisome has enzyme that converts H. Cillia and Flagella John Bassili & Zheeanna Zahid Structure Of Cilia . Cilia are slender, microscopic, hair like structures that extend from the surface of nearly all multiple or single cells. CLASSIFICATION. ALGAE. An eukaryotic cell . organisation. .. It . is composed of pure or mixed carbohydrates (Cellulose, mucilage, pectin etc.) and substances like . alginic. acid, . fucoidin. , . fucin. :. contain enzymes that transfer . hydrogen. from various substrates to . oxygen. .. Functions of peroxisomes:. Hydrogen peroxide . (H. 2. O. 2. ) is a poison, but the peroxisome has enzyme that converts H. It is a dynamic structure that:. maintain cell shape. . has been known to protect the cell.. enables cellular motion.. play an important role in the movement of organelles and . intracytoplasmic. vesicles.. Lec.No.2 Dr. . Oruba. Cellular Organelles: .  . 1- . Ribosomes. ; . These are 18 nm. particles, which are scattered in thousands of them in the cytoplasm. Each particle (unit) is of 70S type, which consists of two subunits; large one of 50S, and a small one of 30S. The concentration of Mg.