PPT-Chapter 20 Viruses and Prokaryotes

Viruses A nonliving particle made of proteins nucleic acids and sometimes lipids fats Viruses only reproduce by infecting living cells Most viruses can only be seen with an electron microscope. And 57375en 57375ere Were None meets the standard for Range of Reading and Level of Text Complexity for grade 8 Its structure pacing and universal appeal make it an appropriate reading choice for reluctant readers 57375e book also o57373ers students 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 . Pages 476 - 495. A Rhinovirus . The Flu. What is a Virus??. Non-living particles that can’t reproduce. nucleic . acids . (DNA or RNA) . enclosed . in a protein coat . Smaller than the smallest bacterium . 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.. Cellular organisms. In one of two domains: . Archaea. and Eubacteria. Generally smaller than eukaryotes. Most are unicellular, some form colonies or filaments. No membrane-enclosed organelles. Ribosomes are located in the cytoplasm. . Copyright © Houghton Mifflin Harcourt Publishing Company. Unit 2. . Lesson 1 . Archaea, Bacteria, and Viruses. Sized Extra-Small. Copyright © Houghton Mifflin Harcourt Publishing Company. All living things are either prokaryotes or eukaryotes.. microscopic single celled organisms. collective biomass – . 10x of all eukaryotes!!!!!. vast genetic diversity among members. physical diversity. shapes: . spheres (. coccus. ), rods (bacilli) and spirals. arboviruses. ) are viruses that can be transmitted to man by arthropod vectors. . Arboviruses. belong to three families:. Togaviruses. . Bunyaviruses. e.g. . Sandfly. Fever. .. Flaviviruses. e.g. Yellow Fever, dengue, Japanese Encephalitis. . . The process of transfer of virus into host is referred as . TRANSMISSION. and this is an important step in the life cycle of viruses.. Person to person infections are said to be . HORIZONTAL. . Study Material for. . . B.Sc. Part II. . Botany . Hons. .. . . Paper IV. . Dr. Pushpanjali Khare. Sr. . Warm Up- 8/21. What level of organization is this picture an example of?. Good Things. Levels of Organization Card Sort. Lab Tables (4 group members). 5 Minutes Max. Levels of Organization Matching. 5 Minutes. 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 . Classifying Prokaryotes. The smallest and most abundant microorganisms on Earth are . prokaryotes. —unicellular organisms that lack a nucleus. . Prokaryotes have DNA, like all other cells, but their DNA is not found in a membrane-bound nuclear envelope as it is in eukaryotes. Prokaryote DNA is located in the cytoplasm. . Dr.Qurat-Ul-Ain. Department Of Microbiology. KEMU,Lahore. . Two Basic Types of Cells. _____________________. ______________. Size of Living Things. 1 m = 100 cm = 1,000mm = 1,000,000 . µ. m = 1,000,000,000nm.