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Clockwise from top left: Amanita muscaria, a basidiomycete; Sarcoscypha coccinea, an ascomycete; bread covered in mold; a chytrid; a Penicillium conidiophore.Amanita muscaria Sarcoscypha coccineamoldPenicilliumconidiophore
LeishmaniaLeishmania donovani, (a species of protozoa) in bone marrow cell
Ebola virus electron micrographelectron micrograph Two rotaviruses: the one on the right is coated with antibodies that stop its attaching to cells and infecting themrotaviruses
HIV Virus infecting a cell
bird flu virus Electron micrograph of the bird flu virus.
Viral DNA joins host DNA b. Making multiple viral RNAs
Algae BioFuels: PetroSun's Subsidiary To Develop Bio-diesel Form
Viruses Bio 11. Examples The flu Common cold Ebola Mono HIV Polio Hepatitis B.
Unit 11 – Viruses, Bacteria, and Protist
Viruses Are they living?. Video Clip: United Streaming Watch this Video Clip from United Streaming as an introduction to Viruses –Introduction to Viruses_Discovery.
VIRUSES. WHAT IS A VIRUS? Virus: a tiny, nonliving particle that invades and then multiplies inside a living cell Act like a parasite that can only.
MICROBIOLOGY Micro:small Bio:life Logy:study Microbiology is the study of living things too small to be seen. Usually, this includes single celled organisms.
What is a Virus? n Viruses are strands of DNA or RNA inside a protective coat. n They cannot live on their own, but invade cells in your body and use.
Viruses and Viral Like Agents
Viruses A submicroscopic pathogen From the Latin: Poison: A slimy liquid.
Virus Lecture Virus The nonliving Undead Virus Characteristics About as big as a protein Basic Virus Anatomy 1. outer protein coat 2.Inner core of nucleic.
VIRUSES. SIZE of VIRUSES Viruses are so small they must be measured in “nanometers” 1,000 nanometers = 1 micrometer 1,000 micrometers = 1 millimeter.
Viruses. What are viruses? They are not living things. Viruses are considered non-living because they do not use energy to grow or to respond to their.
VIRUSES. What is a Virus? Made up of DNA or RNA surrounded by a protein coat Made up of DNA or RNA surrounded by a protein coat Cause disease and infection.
Virus Nonliving infectious agent that can cause disease. *Not in a kingdom.
Viruses Non-living - does not grow, eat, release waste, or breathe. Is able to reproduce, but only when inside a host (the cell that a virus enters) 100.
Virus: Microlife Infectious Diseases Objective: you will be able to understand and explain how viruses attack and effect human cells.
Single Celled Organisms Plants & Animals are multi-celled organisms. –Most cells depend on the other cells in the body to survive (eg: muscle cells require.
Genetics of Viruses. Viral Structure n Virus: – “poison” (Latin) – infectious particles consisting of a nucleic acid in a protein coat n Capsid= viral.
The Nature of Viruses Chapter 27. Structure of Viruses.
Warm-Up What makes something alive? Is the common cold a virus or a bacteria? When is your project (Data Table and Graphs) due?
Viruses For EOC Review. IV.Preventing Bacterial Disease 1. Vaccine- A preparation of a weakened or killed pathogen, such as a bacterium or virus. Body.
Unit 3: Viruses!.
Viruses, like 98% of all parasites, are very Host specific. What are parasites? What are hosts? What are pathogens? Viruses can ONLY survive & reproduce.
Viruses. Virus: Segments of nucleic acid (DNA OR RNA) within a protein coat (noncellular); NONLIVING; much smaller then prokaryotes Must reproduce within.
Section Viruses Sbi3u Mrs. franklin.
How is natural selection related to antibiotic resistance in bacteria? How do we contribute to this process?
Viruses Virus: A noncellular particle composed of genetic material that can invade living cells. –Viruses are considered by most to be non- living since.
Viruses The Smallest Organisms?. What are viruses? Very small particles Too small to see with a light microscope Can be “seen” with an electron microscope.
Viruses Dead or alive?.
VIRUSES. SOME SCIENTISTS THINK VIRUSES ARE LIVING THINGS, AND SOME DO NOT. THEY ARE MUCH SMALLER THAN A CELL AND DO NOT HAVE ORGANELLES. IN FACT, A CELL.
Viruses “They Are Not Alive!”.
Introduction to Virology
Objectives: Describe the structure of viruses. Explain how viruses cause disease. Explain how humans defend against viral disease.
HIV & the Immune System. The Immune System Is like a screen in a window….it keeps the bugs out. The body’s defense against illness. It keeps the body.
Viruses are small infectious agents They are so small that they can only be seen with a very powerful electron microscope Ebola Virus under electron.
Bacteria and Viruses Chapter 19. Classification Kingdom…Moneran Domain a) Euchaea b) Bacteria.
Viruses Dead or alive?. Viral structure Viruses are not cells. Basic structure: –Protein coat –Nucleic acid core (RNA or DNA)- controls production of.
After a virus becomes active and replicates in a host cell, it destroys the host cell. Copies of the virus are then released into the host organism, where.
Viruses Alive or not?.
VIRUSES Nature’s Robots
Virus Notes TEK 4C. Section 18.1 Summary – pages Viruses are composed of nucleic acids enclosed in a protein coat and are smaller than the smallest.
1 Viruses Virus in latin means, “poison” Definition- Infectious non-living particle that duplicates in the cells of an infected host. 2.
Viruses Are they alive ?. What is a Virus? A non – living, infectious particle made only of a strand of DNA or RNA surrounded by a protein coat. This.
Chapter 19 VIRUSES AND SIMPLE INFECTIOUS AGENTS. 1) 1892, use porcelain filter to filterize tobacco leaves extrat filterable agent 2) 1898, Martinus.
1. A virus is an infectious agent made up of nucleic acid (DNA or RNA) wrapped in a protein coat called a capsid. 2. Viruses have no nucleus, no organelles,
VIRUS MEANS “POISON”!. MADE OF PROTEIN AND NUCLEIC ACID (EITHER DNA or RNA)
Viruses. Tiny 1/2 to 1/100 the size of smallest bacterium Nonliving Do not fulfill the criteria for life Do not carry out respiration, grow or move Can.
They are microscopic, nonliving particles Some are harmless, while others kill their hosts, ALL are infectious! They do not display most of the.
Virus Reading Guide. How Active Viruses Multiply Virus attaches to the surface of a living cell.
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