1. Microbiology
Part I –
Introduction

2. ? purpose Educated Future Parent Educated Patient Curiosity
Why study microbiology?
Educated Future
Parent ?
Educated Patient
Curiosity

3. BACTERIA ARE ALMOST EVERYWHERE AND IN ASTONISHING NUMBERS!
Fun Facts!
BACTERIA ARE ALMOST EVERYWHERE AND IN ASTONISHING NUMBERS!
Organisms from Archaebacteria and Eubacteria outnumber ALL the members of the other 4 Kingdoms COMBINED
Bacteria have a greater combined weight than ALL THE OTHER LIVING organisms on earth
Bacteria THRIVE in places where no other organisms were thought to exist
A single GRAM of common soil can contain MILLION bacteria cells
Every cubic meter of air contains ,000 bacteria cells

4. Bacteria Facts
Most people hear the word “bacteria” and think of germs and disease
While SOME species of bacteria cause disease (pathogenic), MOST (along with Fungi) are the primary decomposers on this planet and dispose of TONS of waste
Decomposers secrete chemicals that break down dead/decaying material so they may be reused by plants and other organisms

5. A few Pathogenic Bacteria…
Clostridium botulinum
Clostridium difficile
Staphylococcus aureus
Vibrio cholerae
Streptococcus pneumoniae
Escherichia coli
Yersinia pestis

6. Classification Domain Prokarya Kingdom Archaebacteria
Kingdom Eubacteria

7. Kingdom Archaebacteria
3 Main Groups:
Thermoacidophiles
Methanogens
Halophiles

8. Comparison – Archaebacteria and eubacteria

9. Bacteria Shapes
Draw shapes:

10. Bacteria structure

11. Bacterial Cell Walls and Capsules
Bacterial cell walls are made of large molecules called peptidoglycans
The thickness, composition of the cell walls are unique to each species
Scientists are able to observe the thickness (and type) through a process called Gram’s Stain
On the outside of the cell walls are layers of sticky carbs called the capsule
These allow bacteria to stick to surfaces and protect the cell from bad conditions

12. The structure of a bacteria will often dictate:
Why are they important?
The structure of a bacteria will often dictate:
Symptoms of an infection
what antibiotic is used to treat the infection
Antibiotic used will target the cell wall/capsule to kill the bacteria

13. Bacteria Memory Game
Play 1 round and Copy down!