PPT-Prokaryotes Chapter 23 Features of Prokaryotes

Cellular organisms In one of two domains Archaea and Eubacteria Generally smaller than eukaryotes Most are unicellular some form colonies or filaments No membraneenclosed organelles Ribosomes are located in the cytoplasm. PIONEER and the Pioneer logo are registered trademarks of Pioneer Corporation DualDisc playback The nonDVD audio side of the disc is not compliant with the CD audio speci64257cation and therefore may not play The DVD side of a DualDisc plays in this Communication One. Introduction. In this presentation we will discuss the Jamaican Language Continuum and the features of Jamaican Creole in terms of the linguistic components it possesses in common with all other languages.. GTAC. Learning Outcomes. Students recognise that there are different levels of classification – the largest being the five kingdoms which are based on cell structure.. Distinguishing plant cells from animal or fungal cells.. Eubacteria & . Archarbacteria. Prokaryotes. Unicellular organisms that lack a nucleus. Prokaryotes are identified by characteristics such as shape, the chemical nature of their cell walls, the way they move, and the way they obtain energy.. PROKARYOTES. EUKARYOTES. CYTOPLASM. Cell Membrane. DNA. Always single-celled. No Nucleus. DNA is a simple,. Single loop. Small Cells. (1 – 10 . um. ). Bacteria. . Can be single- or multicellular . Homeotic Genes. Type of master gene that controls formation of specific body parts during development. Antennapedia. . Expressed in the thorax causes legs to form. Expressed in the head causes legs to form there also. Single-celled organisms. Very tiny. Cannot be seen without a microscope. Our microscopes are not powerful enough. Lack a nucleus and most other organelles. Most numerous organisms on Earth. Extremely important organisms.. Glycocalyx. Substance that surrounds the cell. Gelatin polymer containing sugars and proteins. If firmly attached to the cell wall = . capsule. If loosely attached to the cell wall = . slime layer. Functions. 0. PROKARYOTES. 16.7. Prokaryotes have inhabited Earth for billions of years. Prokaryotes are the oldest life-forms. And remain the most numerous and widespread organisms . Colorized SEM 650. . . microscopic single celled organisms. collective biomass – . 10x of all eukaryotes!!!!!. vast genetic diversity among members. physical diversity. shapes: . spheres (. coccus. ), rods (bacilli) and spirals. Study Material for. . . B.Sc. Part II. . Botany . Hons. .. . . Paper IV. . Dr. Pushpanjali Khare. Sr. . What makes these two cell classes different?. Cells. The . cell. is the smallest unit of life in the universe.. ALL cells have two things in common:. They have . cell membranes. , which are barriers that separate the inside of a cell from the outside.. You have 7 minutes after the bell rings to give the function of the follow organelles. Nucleus. Mitochondria. Chloroplast. Ribosome. Golgi Complex (body). Life is Cellular. . The Discovery of the Cell. microbiology. Lecture-9. Microbial cell structure. Prokaryotes-2 . 1. Domains of living cells. . Principles of microbial cell structure . Elements of Microbial cell Structure. Eukaryotes. . Prokaryotes & chemistry of cellular components .