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Microbes Chapter 11. What is a microbe? A microbe is an organism that can only be seen with the help of a microscope. Microbes include: – Viruses – Bacteria.

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Presentation on theme: "Microbes Chapter 11. What is a microbe? A microbe is an organism that can only be seen with the help of a microscope. Microbes include: – Viruses – Bacteria."— Presentation transcript:

1 Microbes Chapter 11

2 What is a microbe? A microbe is an organism that can only be seen with the help of a microscope. Microbes include: – Viruses – Bacteria – Protists – Fungi

3 Bacteria Single-celled Bacteria are prokaryotes. Their genetic material is not found in a nucleus. Size: 1-2 micrometers Three main shapes: spherical, rodlike, or spiral.

4 Bacteria Diagram Genetic material Ribosomes Cell wall Cell membrane Cytoplasm Flagella

5 Examples of Bacteria Cyanobacteria E. coli Lyme disease Pneumonia Syphilis Strep throat Anthrax Tetanus

6 Different bacteria invade the body and cause different disease Cholera Diptheria Food poisoning Leprosy Lyme diseases

7 Cholera Virbrio http:// imbabwe- cholera http://www.guardian.co.uk/world/video/2009 /feb/26/zimbabwe-cholera http://www.youtube.com/watch?v=3V- UCwxXQ70

8 Classwork Watch brainpop on bacteria Turn volume off on computer – Closed caption only, and answer questions. Turn in. Homework: Read Section 2, p. 448 on bacteria. Study the diagram Take notes on each section


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