What is a virus? Word of the Day: Pathogen= an organism or particle that causes disease Take notes if in red. Listen and ask questions about other colors.

Slides:

Advertisements

Similar presentations

Advertisements

Eukaryotes, Prokaryotes, and Virus Section 7.1 Pg Section 18.1 pg

Viruses By Luke Eddy and Tod Holberton Polio Virus Influenza (flu) virus.

Unit 5: Classification and Kingdoms

Genetics of Viruses.

CHAPTER 19 BACTERIA AND VIRUSES.

Lesson 3 Reading Guide Lesson 7-3 What are Viruses?

Latin for “toxic” or “poison” A virus is a non-living microscopic particle, much smaller than a bacteria, which cannot grow or reproduce apart from.

Viruses Are they alive?. The properties of life ● You already know that living things: 1. Made of cells 2. Grow and reproduce 3. Use information from.

Viruses What are they? How do they work? Where do they come from? And… What good are they? Viruses.

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.

Viruses. Non-cellular particles of nucleic acid, protein, and in some cases lipids that can reproduce only by infecting living cells Differ widely in.

Viruses A submicroscopic pathogen From the Latin: Poison: A slimy liquid.

Viruses Living or Not Virus Virus – small particle made of 1.Nucleic acids either DNA or RNA 2.Surrounded by a protein coat.

Viruses Section 19–2 This section describes the structure of a virus. It also explains how viruses cause infection.

 Viruses- particles of nucleic acid, protein and sometimes lipids  Most viruses are so small, they can only be seen through a powerful electron microscope.

Lesson 7-3 What are Viruses?

Viruses. Nonliving particle – do not contain all characteristics of life Reproduce by infecting cells Made of 2 things Nucleic acid Capsid – protein coat.

VIRUS Notes. Definition Viruses are tiny particles unlike any other organism. A virus consists of genetic material such as RNA or DNA wrapped in a protein.

Viruses Coach Blocker Schley County Middle School Ellaville, Georgia.

Viruses Chapter 19. Viruses Non-living, cannot reproduce without a hostNon-living, cannot reproduce without a host Contain either DNA or RNA (retrovirus)

Viruses Living or Not Virus Virus – small particle made of 1.Nucleic acids either DNA or RNA 2.Surrounded by a protein coat.

Viruses Ch. 20. Is a Virus Alive? Lets first look at organisms we know are alive? What can you tell by comparing the virus to the cells we have learned.

VIRUSES A tiny, non-living parasite (particle) that enters and reproduces inside a living host cell. Two types: 1. Active 2. Hidden.

VIRUSES ARE NOT ALIVE BUT AFFECT LIVING THINGS. VIRUSES SHARE SOME CHARACTERISTICS WITH LIVING THINGS VIRUSES MULTIPLY INSIDE LIVING CELLS VIRUSES MAY.

 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.

State Standard SB3D. Compare & contrast viruses with living organisms. Viruses (18.2)

Viruses Intro to Viruses Movie I.General info: A. Viruses are pathogens (cause disease) that affect organisms in all 6 kingdoms B. Don’t belong to any.

Viruses: Key Ideas Why is a virus not considered a living organism?

VIRUSES PA State Standards:. What are VIRUSES? 1) A nucleic acid (DNA or RNA) surrounded by a coat of protein. 2) Viruses are not considered to be alive.

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.

It’s a Small Small World Part A-Viruses, Bacteria and Protists.

Viruses. At the boundary of life, between the macromolecules (which are not alive) and the prokaryotic cells (which are), lie the viruses and bacteriophages.

Doesn’t belong to any kingdom -It’s not a plant or an animal. -It’s not a fungi, protist, or bacteria. WHAT IS A VIRUS?

Compare the structures and functions of viruses to cells

Virology - study of viruses

Structure, Function, and Reproduction

Viruses!. What is a virus? A non-living particle composed of a protein coat (capsid) & nucleic acids The virus can have either DNA or RNA (retrovirus)

Chapter 19.  Non-living ◦ Non-cellular ◦ Cannot grow or reproduce on its own ◦ No metabolism  Cause disease ◦ AIDS, colds, flu, measles, mono  Cause.

Lesson Overview Lesson Overview Studying the Human Genome Lesson Overview 20.1 Viruses.

Chapter 19 Page 478. The phylogeny of the virus No fossil evidence Only speculation:- ancestors were cellular parasites that gradually lost their cell.

 Virus: A biological particle composed of nucleic acid and protein  Intracellular Parasites: organism that must “live” inside a host.

Viruses 1.Identify the structures of viruses 2.Explain the differences between the lytic and lysogenic cycles of viral reproduction 3.Recognize the medical.

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.

Viruses Chapter 7.1. POINT > Describe what a virus is POINT > Describe virus structure POINT > Define bacteriophage POINT > Explain how viruses reproduce.

Viruses Chapter 7.1.

Tuesday 4/26/16 Learning Target: Know the characteristics, reproduction and how to control viruses. Learning Outcome: Create a virus of your choice which.

Do NOW 1. A virus consists of: 3. Which of the following is smallest?

Viruses & Bacteria 1.

RE-Do NOW 1. A virus consists of:

Virus Notes Chapter 19 Section 19-2.

Viral Structure.

Virus Notes Chapter 19 Section 19-2.

Do Now- Wednesday Please place your Tuesday HW on your desk 

Virus Characteristics

Viruses Alive? Or Not?.

Viruses: Key Ideas Why is a virus not considered a living organism?

Presentation transcript:

What is a virus? Word of the Day: Pathogen= an organism or particle that causes disease Take notes if in red. Listen and ask questions about other colors

Virus You heard about ebola virus You know about the influenza virus and the AIDS virus. Did you know they are also using viruses to cure cancer and other disease.hg

Fun Fact: More than 3,000 Polio viruses could fit end to end - in a straight line - across the period at the end of this sentence. What is a virus?

Background First virus identified in why so late???? Millions of different kinds Are found everywhere Once were thought to be alive, but in 1935 shown to be non-living

Viral Diseases HepatitisRabies HIV/AIDSMeasles MeningitisHerpes Mononucleosis Chickenpox West NileColds Ebola Influenza-The Flu

Characteristics Definition of Virus: Viruses have a core of nucleic acid (genetic information) surrounded by a protein coat.

Picture Nucleic acid core (DNA or RNA) Protein coat (capsid)

How do they reproduce? Can’t grow or replicate on their own but can reproduce in another cell (host cell).

What size are they? Extremely small – smaller than bacteria and human cells

Virus Animation ShQhttp:// ShQ

How does a virus attack? (Level 2/3)

Is a virus alive?

Assignment : Make a virus and show it attack a cell Make 1 virus 1 cell- label cell membrane, nucleus and cytoplasm Virus parts inside the cell Bacteriophage Virus