Microbiology Seeing the Unseen Essential Question Summarize the

Microbiology – Seeing the Unseen Essential Question: Summarize the basic characteristics of microbes.

Vocabulary Microbiology Unicellular Virus Bacteria Morphology Reproduction potential Fungi Parasite Protists Lytic Lysogenic

Concepts • Types of microorganisms

What are Microbes? • http: //www. youtube. com/watch? v=_Vj 0 c. Igw p. QI • Invisible Universe of Human Microbiome • http: //www. youtube. com/watch? v=5 DTr. ENd Wvv. M

Microbiology • The area of science that studies microorganisms (microscopic) such as: – Viruses; – Bacteria; – Protists; – Parasites; – Fungi

Unicellular • Single-celled organisms that can only be seen through a microscope. • Bacteria – unicellular and prokaryotic. • Some protists and fungi are unicellular, but eukaryotic.

Virus • The smallest of the microbes. • Considered non-living because they can not reproduce on their own. – Must infect a living organism, called the host. The “host cell” makes copies of the virus, then it’s released to infect more cells.

Viral Reproduction Lytic Reproduction • Virus uses the host cell to make more copies of itself. • It causes the host cell to burst from so many copies. • Analogy: water balloon bursting

Viral Reproduction Lysogenic Reproduction • The virus uses the host cell to copy its DNA and then inserts that DNA into future viruses.

Bacteria • Smallest living organisms on earth. • They can be found almost anywhere: – Air, Soil, Water, Human Body.

Morphology • Morphology – means shapes and structures. • Bacteria have 3 basic morphologies: – Sphere – Rod – Spiral

Reproduction Potential • Bacteria multiply very rapidly with ideal conditions. • Millions of the same type of bacteria located in the same place are called: colonies. – They come from a single bacteria multiplying. • Graph:

Fungi • Reproduce by using spores. • Decomposer – gains food by breaking it down and absorbing it.

Protists Algae • Plant-like protists. • Multicellular. Protozoa • Animal-like protists.