1. DO NOW!!!
What type of cell is each one of these pictures? Describe each!

2. Archaea, Bacteria, and Viruses
Unit 2 Lesson 1

3. Prokaryotes Prokaryotes – no nucleus or membrane-bound organelles
Single-celled micro-organisms – cant be seen with the naked eye
Divided into two domains, Bacteria and Archaea.

5. Bacteria https://www.youtube.com/watch?v=qCn92mbWxd4
Most prokaryotes = bacteria (single celled micro-organisms)
Domain Bacteria - more individuals than all other domains combined do.
Usually have a cell wall and usually reproduce by cell division.

6. Producers, consumers, & decomposers
Bacteria consumers - get nutrients by feeding on other organisms. (Heterotroph)
Some bacterial consumers are decomposers, which feed on dead organisms.
Others live in or on another organism.
Bacteria producers - make their own food. Use energy from sunlight to make food, and are often green. (Autotroph)

8. Bacteria
Some stick together to form strands or films but function as independent organisms.
Take in nutrients
Release energy from food
Get rid of waste
Grow

9. Bacteria Shape
A rigid cell wall gives bacteria their shape. Each shape helps bacteria in a different way.
Spiral shape (Spirilla) – bacteria moves like a corkscrew
Rod shaped (Bacilli) – helps bacteria quickly absorb nutrients
Round shape (Cocci) – bacteria do not dry out quickly

12. Where are bacteria found?
Almost everywhere on Earth.
Found breaking down dead material in soil
Making nitrogen available inside plant roots
Breaking down nutrients in animal and human intestines.

13. When conditions improve - endospores break open and bacteria become active again.

14. Discover your microbe personality: Which microbe are you?
Got to this website:
Take the online quiz for grades 6 and up.
What microbe are you?
Research what type of bacteria you are: Helpful or Harmful and Why?

15. HW
Summarize pages 80 – 83 and complete questions #6 – 11.

16. DO NOW!!! Watch this video to learn about the domain archaea.

17. Domain Archaea http://www.microbeworld.org/types-of-microbes/archaea
GO to this link, research Domain Archaea, and answer these questions:
What are the three main types?
How are they characterized?
Why are they different from bacteria?
What do they look like?
What do they eat?
How old are they?

18. Archaea
Genetically very different from bacteria and have unique chemicals in their cell walls.
Characteristics include:
Get energy
Reproduce
Many can move
Many unique molecular traits.
Some molecules are similar to molecules in eukaryotes, while others are not found in living things.

19. Extremely acidic or salty habitats.

20. Yellowstone National Park - Emerald Pool in the Black Sand Geyser Basin. Archea bacterial growth in the water gives the deep green color.

21. Bacteria & Archaea Reproduction = Binary Fission

22. Asexual Reproduction STEP 1
3 Ways Bacteria Acquire New Genetic Information
Transformation
Transduction
Conjugation

23. Transformation & Transduction
Transformation - bacteria take up DNA from the environment.
Transduction - virus injects DNA into a bacterium.
Conjugation - two bacteria join and a plasmid transfers from one to the other.

24. HW
Summarize pages 84 to 86 and complete questions 13 – 15.

25. DO NOW!!! https://www.youtube.com/watch?v=ruBcSCOLq5Q
What the heck is a virus?

26. Virus
Microscopic particle - cannot replicate on its own. Needs to get inside or injects a cell with its DNA, often destroying the cell.
Cause diseases - common cold, flu, and acquired immune deficiency syndrome (AIDS)
Infects - people, plants, animals, and prokaryotes.

29. Are Viruses Alive?
Viruses - genetic material + protein but does not perform any life functions.
Viruses do not
use energy from nutrients
maintain homeostasis
Grow
respond to stimuli such as light, sound, or touch.
Cannot function on its own. Can only replicate inside a cell it infects.

31. How do viruses replicate?
Only replicate in a living cell (host – living thing that a virus or parasite uses for resources or shelter)
Attach to specific types of host cells and invade them.
Many viruses cannot be spread from one type of organism to another.

32. Lysis

33. Lytic Cycle The new viruses - search for new host cells
Some viruses insert - genes into the host cell which remain dormant (inactive for a long time)
When the genes do become active, they begin the lytic cycle and make copies of the virus. (HIV +AIDS)

34. Research a Virus Discussion about viruses. Zika Virus Ebola HIV – AIDS
Chickenpox –Shingles
Etc.

35. Virus Diseases
- EBOLA
– EBOLA EXPLAINED
- OUTBREAK
– HIV & AIDS
– SMALLPOX

36. Activity Turn to page 87 in your textbook and read about THE FLU.
Answer question 16 when your done reading.

37. HW
Complete the Lesson 1 Review on Page 91.

38. Glow Germs Activity Virus Infection Game
DO NOW
Glow Germs Activity Virus Infection Game
VICE: Killing Cancer by using Viruses