Microbiology Exam 1 Exam Prep Questions And Answers ()

Microbiology Exam 1 Exam Prep Questions And Answers
(202472025)


Question:
Microorganism
Answer:
are organisms that are too small to see with the unaided eye


Question:
examples of microorganisms
Answer:
bacteria


fungi

protozoa

microscopic algae

viruses

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


Question:
what are the different magnifications of a bright field microscope
Answer:
4x


10x

40x

100x

,Question:
what is the kind of microscope that you use when looking at a virus
Answer:
electron microscope


Question:
what are the different magnifications of the electron microscope
Answer:
1 mil


2 mil

10 mil

Question:
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

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


Question:
what knowledge do microbes give humans
Answer:
prevent diseases

, allow food storage and prevent food spoilages

stop transmission of diseases

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


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


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


- change in the pH

- secrete enzymes

- eat the food

Question:
bioremediation
Answer:
using microbes to clean up pollutants


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