BIOL 203 MICROBIOLOGY LCC FINAL PAPER QUESTIONS AND CORRECT ANSWERS FULL REVIEW GUIDE

BIOL 203 MICROBIOLOGY LCC FINAL
PAPER QUESTIONS AND CORRECT
ANSWERS FULL REVIEW GUIDE

●● examples of microorganisms
Answer: bacteria
fungi
protozoa
microscopic algae
viruses


●● what kind of microscope do you use when you are working with
microorganisms you can't see?
Answer: bright field microscope


●● what are the different magnifications of a bright field microscope
Answer: 4x
10x
40x
100x


●● what is the kind of microscope that you use when looking at a virus

,Answer: electron microscope


●● what are the different magnifications of the electron microscope
Answer: 1 mil
2 mil
10 mil


●● How are microbes helpful
Answer: decompose organic waste
generate O2
produce chemical products such as ethanol and others
produce fermented foods ex: vinegar, cheese, and bread
produce products used in manufacturing ex: cellulose and insulin


●● How many microbes are pathogenic out of all the microorganisms
Answer: 70/10 mil


●● what knowledge do microbes give humans
Answer: prevent diseases
allow food storage and prevent food spoilages
stop transmission of diseases

,●● Microbiology
Answer: the study of organisms too small to be seen with the naked eye


●● microbial ecology
Answer: the study of the relationship between microorganisms and their
environment


●● competitive exclusion
Answer: a way to kill the bad bacteria


- change in the pH
- secrete enzymes
- eat the food


●● bioremediation
Answer: using microbes to clean up pollutants


●● Bacillus thuringienisis
Answer: can kill insects but doesn't harm plants or animals


●● Order of the Scientific Method
Answer: observe

, hypothesis
prediction
experiment
consistency
theory
law


●● Mycology
Answer: study of fungi


●● bacteriology
Answer: study of bacteria


●● virology
Answer: study of viruses


●● algology
Answer: study of algae


●● protozoology
Answer: study of protozoa