MICROBIOLOGY EXAM 1 QUESTIONS
AND ANSWERS GRADED A+ 2025/2026
Microorganism - ANS are organisms that are too small to see with the unaided eye
examples of microorganisms - ANS bacteria
fungi
protozoa
microscopic algae
viruses
what kind of microscope do you use when you are working with microorganisms you can't see?
- ANS bright field microscope
what are the different magnifications of a bright field microscope - ANS 4x
10x
40x
100x
what is the kind of microscope that you use when looking at a virus - ANS electron
microscope
what are the different magnifications of the electron microscope - ANS 1 mil
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
,2 mil
10 mil
How are microbes helpful - ANS 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 - ANS 70/10 mil
what knowledge do microbes give humans - ANS prevent diseases
allow food storage and prevent food spoilages
stop transmission of diseases
Microbiology - ANS the study of organisms too small to be seen with the naked eye
microbial ecology - ANS the study of the relationship between microorganisms and their
environment
competitive exclusion - ANS a way to kill the bad bacteria
- change in the pH
- secrete enzymes
- eat the food
bioremediation - ANS using microbes to clean up pollutants
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
, Bacillus thuringienisis - ANS can kill insects but doesn't harm plants or animals
Order of the Scientific Method - ANS observe
hypothesis
prediction
experiment
consistency
theory
law
Mycology - ANS study of fungi
bacteriology - ANS study of bacteria
virology - ANS study of viruses
algology - ANS study of algae
protozoology - ANS study of protozoa
Robert Hooke - ANS • All living organisms are composed of little boxes or "cells"
• -came up with cell theory - that all microorganisms are made up of cells
-marked the beginning of the cell theory
Anton van Leeuwenhook - ANS • 1st cells observed under the microscope
also made the original electron microscope : 10 mil X
3 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
AND ANSWERS GRADED A+ 2025/2026
Microorganism - ANS are organisms that are too small to see with the unaided eye
examples of microorganisms - ANS bacteria
fungi
protozoa
microscopic algae
viruses
what kind of microscope do you use when you are working with microorganisms you can't see?
- ANS bright field microscope
what are the different magnifications of a bright field microscope - ANS 4x
10x
40x
100x
what is the kind of microscope that you use when looking at a virus - ANS electron
microscope
what are the different magnifications of the electron microscope - ANS 1 mil
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
,2 mil
10 mil
How are microbes helpful - ANS 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 - ANS 70/10 mil
what knowledge do microbes give humans - ANS prevent diseases
allow food storage and prevent food spoilages
stop transmission of diseases
Microbiology - ANS the study of organisms too small to be seen with the naked eye
microbial ecology - ANS the study of the relationship between microorganisms and their
environment
competitive exclusion - ANS a way to kill the bad bacteria
- change in the pH
- secrete enzymes
- eat the food
bioremediation - ANS using microbes to clean up pollutants
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
, Bacillus thuringienisis - ANS can kill insects but doesn't harm plants or animals
Order of the Scientific Method - ANS observe
hypothesis
prediction
experiment
consistency
theory
law
Mycology - ANS study of fungi
bacteriology - ANS study of bacteria
virology - ANS study of viruses
algology - ANS study of algae
protozoology - ANS study of protozoa
Robert Hooke - ANS • All living organisms are composed of little boxes or "cells"
• -came up with cell theory - that all microorganisms are made up of cells
-marked the beginning of the cell theory
Anton van Leeuwenhook - ANS • 1st cells observed under the microscope
also made the original electron microscope : 10 mil X
3 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
