NR 283 CHAPTER 6 REVIIEW TEST 1

NR 283 CHAPTER 6 REVIIEW TEST 11. What are microorganisms? • Small living forms • Can grow in artificial culture medium • Fungi, bacteria, viruses, protozoa. 2. What is nonpathogenic? • Microorganisms that don’t cause a disease unless condition changes. • Normal flora and are beneficial 3. What are pathogens? • Disease causing microorganisms • Called germs 4. What are bacteria? • Unicellular organism that doesn’t require living tissue to survive 5. Characteristics of bacteria? • Prokaryotes • No nucleous • No nuclear membrane • Single cell • They divide by binary fission 6. What are the major groups of bacteria? • Bacilli: rod shaped • Spirals: wavy line, have flagella- tail. • Cocci: spherical. 7. What is a rigid cell wall? • Protects the microbe and provides specific shape. • Bacteria has 2 types of cell wall: o Gram positive o Gram negative 8. What is gram positive • A type of cell wall in bacteria, its useful to know what tkind of cell wall the bacterium has to identify and be treated for the right thing. 9. What is gram negative • A type of cell wall in bacteria, its useful to know what tkind of cell wall the bacteria has to identify and be treated for the right thing.