PPT-Cillia and Flagella

Cillia and Flagella John Bassili amp Zheeanna Zahid Structure Of Cilia Cilia are slender microscopic hair like structures that extend from the surface of nearly all multiple or single cells. . 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. . What is the term for . protists. with animal-like characteristics? . (. a) . amoebas (b. ) protozoans (c) . sarcodinians. (d) . zooflagellates. Protozoan. An amoeba can survive harsh conditions by forming a . 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.. 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. ). A.L.Lamieaa. . Gh. . Fajir. General characteristics. :. 1) Motility is by . flagella. . The flagellum arises from . kinetoplast. .. The . kinetoplast. is composed of the . blepharoplast. and the . 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.. Jejuni. Flagella. Authors: Rita Moyes, . Andra. Robinson, Craig Wilson, Robert . Droleskey. Citation: Rita Moyes, . Andra. Robinson, Craig Wilson, Robert . Droleskey. . 2011. Transmission electron micrographs of negatively stained salmonella typhimurium flagella and fimbriae and campylobacter . Bacterial flagella are so thin (15–20 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..