Chapter 25 V i r u s e s.

Slides:



Advertisements
Similar presentations
Viruses Dead or alive?.
Advertisements

KEY CONCEPT Infections can be caused in several ways.
Chapter 23.  Agents that cause disease  Many microorganisms: bacteria, fungi, protozoa  Bacteria are prokaryotes, but only a few are pathogens; most.
HAPPY THURSDAY Bellwork: What is a virus? How do viruses make us sick? How are viral infections treated? Can viral infections be prevented? Write 37 words.
Structure of Viruses All viruses are composed of: – Nucleic acids: Virus’s genetic material DNA or RNA Code solely for reproduction – Capsid: Protein coat.
Lesson 3 Reading Guide Lesson 7-3 What are Viruses?
Viruses What are they? How do they work? Where do they come from? And… What good are they? Viruses.
Viruses.
Virus Notes. Basic Definition Viruses Viruses: Submicroscopic, parasitic, acellular entity composed of a nucleic acid core surrounded by a protein coat.
Lesson 7-3 What are Viruses?
18.1 Studying Viruses and Prokaryotes Characteristics of Living Organisms Made up of cells Reproduce on their own Have genetic information, DNA Grow and.
Chapter 1.  Composed of one or more cells  Can reproduce  Obtains and uses energy to run processes of life  Maintains a constant internal environment.
Chapter What is a virus? A virus is nucleic acid wrapped in a protein coat Can be DNA or RNA Viruses are considering nonliving because they can’t.
Viruses, bacteria, viroids, and prions can all cause infection.
Use the picture and this information to help you make your decision: 1.Viruses contain RNA or DNA 2.Viruses cannot replicate on their own, they must use.
Viruses. Virus: Segments of nucleic acid (DNA OR RNA) within a protein coat (noncellular); NONLIVING; much smaller then prokaryotes Must reproduce within.
6/22/2016SB3D1 Viruses. Students will derive the relationship between single-celled and multi-celled organisms and the increasing complexity of systems.
Viruses. Learning Goals 1)Understand the structure of a virus 2)Provide support evidence to answer the question, “Are viruses living?” 3)Explain the two.
Viruses.
KEY CONCEPT Infections can be caused in several ways.
The Genetics of Viruses and Prokaryotes
The Non-living Parasite
Viruses Chapter
Biology/O’Connor Virus/Bacteria Notes
The Genetics of Viruses
Viruses.
Viruses.
KEY CONCEPT Infections can be caused in several ways.
Viruses Chapter
Chapter 18 Studying Viruses and Prokaryotes
Viruses Chapter 17.
Viruses Virus: A biological particle composed of nucleic acid and protein pathogen: anything that causes sickness or disease.
Subject: Molecular Virology Instructor: Dr. Sobia Manzoor
Virus Reproduction Overview Cycles for reproduction Retrovirus
Tuesday 4/26/16 Learning Target: Know the characteristics, reproduction and how to control viruses. Learning Outcome: Create a virus of your choice which.
Chapter 18 - Viruses.
VIRUSES Text p
Viruses.
Viral Structure, Lifecycles, HIV
Viruses.
Viruses.
The student is expected to: 4C compare the structures of viruses to cells, describe viral reproduction, and describe the role of viruses in causing diseases.
VIRUSES CH 20.
VIRUSES Text p
Virus Notes Chapter 19 Section 19-2.
Chapter 18 - Viruses.
Virus Notes Chapter 19 Section 19-2.
VIRUS.
Viruses.
Are Viruses Alive?.
Viruses Dead or alive?.
Chapter 15 Viruses, Viral Life Cycles, Retroviruses.
Viruses Biology 2 Mr. Beyer.
Viruses Chapter 18 Continued.
Viruses Chapter 19.
Viruses.
Viruses.
Viruses.
Viruses Dead or alive?.
Chapter 18~ Microbial Models: The Genetics of Viruses and Bacteria
Pick up a book (pg 338) and present trp operon with your team
Viruses.
Virus Notes.
Virus A pathogen that consists of a Nucleic Acid – (DNA or RNA) wrapped in a Protein Coat- (Capsid). Classification: Classified by the host Bacteriophage.
VIRUSES.
VIRUSES Viruses – are segments of nucleic acids contained in a protein coat; they are not cells; they are smaller than prokaryotes and range in size.
Viruses Alive? Or Not?.
Chapter 18.2 Viruses and Prions
Viruses.
The student is expected to: 4C compare the structures of viruses to cells, describe viral reproduction, and describe the role of viruses in causing diseases.
Presentation transcript:

Chapter 25 V i r u s e s

V i r u s e s They are below the cellular level of organization. Viruses are referred to as acellular Their size is measured in nanometers. One nanometer is one billionth of a meter.

A r e v i r u s e s a l i v e ? Which of the life characteristics are shown by viruses?

A r e v i r u s e s a l i v e ? Composed of cells Organization Use energy Response Reproduction Adaptation

Structures of TMV and Influenza Virus

Tour of a Virus

Structures of Adenovirus and Bacteriophage

Reproductive Cycle of HIV

Structures of Influenza Virus

Viral Diseases and Modes of Transmission

C l a s s i f y i n g T r a i t s T y p e o f n u c l e i c a c i d T y p e o f h o s t c e l l

L y t i c C y c l e 1. Attach to a cell. 2. Inject nucleic acid. 3. Control the cell. 4. Produce viruses. 5. Cell ruptures. 6. Cell dies.

L y s o g e n i c C y c l e 1. Attach to a cell. 2. Inject nucleic acid. 3. Nucleic acid becomes part of the cell genes. 4. New genes are passed to offspring. 5. New genes stimulated and produce new trait.

A r e t h e y H a r m f u l ? Virulent Temperate

P a p i l l o m a v i r u s - W a r t s

I n f l u e n z e v i r u s - F l u

H u m a n I m m u n o d e f i c i e n c y V i r u s - A I D S

R a b i e s V i r u s