1. C1 Bellwork Complete Most Missed Quiz – Taxonomy (10 minutes)
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Bellwork
Complete Most Missed Quiz – Taxonomy (10 minutes)
Quickwrite: What is a virus? How do viruses make us sick? How are viral infections treated? Can viral infections be prevented? Write in 37 words.

2. Unit 8 – Viruses & Microorganisms Definitions Due Wednesday (2/10/16) All Parts Due Wednesday (2/17/16)
PG 106
Antibiotic
Gram Staining
Lyse
Bacilli Shaped
Host
Microorganism
Bacterium
Human Immunodeficiency Virus (HIV)
Parasite
Bacteriophage
Pathogen
Binary Fission
Retrovirus
Immunization
Cocci Shaped
Spirilla Shaped
Influenza
Capsid
Vaccine
Lysogenic Cycle
Conjugation
Virus
Lytic Cycle

3. Collect Today Taxonomy/Cladogram Video MAKEUP Quiz Assigned Page 106 – Notecard Definitions (Wednesday) Chart MAKEUP Quiz (Friday) Late Taxonomy & Kingdoms Test Analysis (NO CREDIT)

4. How do viruses differ from living organisms? Standard
Essential Question
How do viruses differ from living organisms? Standard
4C – Compare the structures of viruses to cells, describe viral reproduction, and describe the role of viruses in causing diseases such as human immunodeficiency virus (HIV) and influenza
PG 108

5. Viruses

6. I. Viruses A. All viruses have one thing in common:. 1
I. Viruses A. All viruses have one thing in common: They enter living cells and use the cell to produce more viruses.

7. B. Virus Structure -A virus is made of:. a) a core of DNA or RNA
B. Virus Structure -A virus is made of: a) a core of DNA or RNA b) A virus has either a capsid or an envelope surrounding its genetic information. -The capsid allows viral DNA or RNA to enter a host cell.
Envelope
Capsid

8. Viral components Spikes Nucleic acids DNA or RNA Capsid Protein
Envelope
Lipid
Spikes
Used to attach to cell
ONLY SOME VIRUSES

9. Generalized Structure of Viruses
virions having envelopes = enveloped viruses
virions lacking envelopes = naked viruses

10. Generalized Structure of Viruses

12. Cellular Organisms vs Acellular Particles
Eukaryotic Cell
Virus
Prokaryotic Cell
Prokaryotes
Eukaryotes
Viruses
Eukaryotic Nucleus
1 ųm (1000 nm)

13. C. Virus Specificity -Viruses are highly specific to the cells they infect Examples: 1) plant viruses infect plant cells 2) animal viruses infect only certain related species of animals 3) bacterial viruses infect only certain types of bacteria.
So, what about zombies?

14. Write this on your notes!
E. Retroviruses 1. Retroviruses are viruses that contain RNA as their genetic information. -Retroviruses get their name from the fact that their genetic information is copied backward, from RNA to DNA. 2. HIV is the most infamous retrovirus.
AZT is a medication used to treat HIV by stopping an enzyme called reverse transcriptase
Write this on your notes!

15. HIV and AIDS

16. F. Viruses are parasites (use other organisms to grow and reproduce) 1. Viruses are NOT alive because they do not: a) grow and develop b) obtain and use energy c) respond to the environment

17. G. Vaccines. 1. Viral diseases cannot be treated with antibiotics. 2
G. Vaccines 1. Viral diseases cannot be treated with antibiotics. 2. Vaccines are the best way to protect against viruses a) A vaccine is a dead or weakened version of a virus that is injected into a person to stimulate the immune system. b) Vaccines provide protection only if they are used before an infection begins.