Microbiology Exam 1 Practice exam 2026-2027 NEWEST
EXAM WITH UPDATED QUESTIONS AND CORRECT
DETAILED ANSWERS \VERIFIED 100% \GRADED A+
Microorganism
are organisms that are too small to see with the unaided eye
microbial ecology
the study of the relationship between microorganisms and their
environment
competitive exclusion
a way to kill the bad bacteria
- change in the pH
- secrete enzymes
- eat the food
bioremediation
using microbes to clean up pollutants
,Bacillus thuringienisis
can kill insects but doesn't harm plants or animals
Order of the Scientific Method
observe
hypothes
is
predictio
n
experime
nt
consistenc
y theory
law
Mycology
study of fungi
bacteriology
study of bacteria
virology
study of viruses
,algology
study of algae
protozoology
study of protozoa
Robert Hooke
• 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
• 1st cells observed under the microscope
also made the original electron microscope : 10 mil X
Rebecca Lancefield
• came up with the system that help classifying different microorganisms
• it was all based on different polysaccharides in the cell wall
also helped discover Streptococcus pyognes - which is basically strep
and we know this because pyognes is a pus forming microorganism
, Joseph Lister
• discovered phenol: was used to stop surgical would infections
• usually in hospitals : Staphylococcus aures aka staph infection
at least 20% of population is a carrier for the staph infection and they
carry it in their noses
Louis Pasteur
• father of microbiology and is the most important scientist in microbiology
• showed that microbes are responsible for fermentation
• Fermentation: conversion of sugar to alcohol in the absence of air
• Discovered that pasteurization was something that could stop food
spoilage
• Pasteurization: the application of a high heat for a short time to kill
harmful bacteria in beverages
How was he lucky in his discovery of pasteurization?—there we're no
endospores and that would should have been detected during the
search for spontaneous
generation but it didn't
Robert Koch
Proved that bacterium causes anthrax and provided the experimental
steps of Koch's Postulate
Edward Jenner
• Discovered vaccination (or the process of vaccination)
Did it through using cow parts to vaccinate a child to protect against small
pox
EXAM WITH UPDATED QUESTIONS AND CORRECT
DETAILED ANSWERS \VERIFIED 100% \GRADED A+
Microorganism
are organisms that are too small to see with the unaided eye
microbial ecology
the study of the relationship between microorganisms and their
environment
competitive exclusion
a way to kill the bad bacteria
- change in the pH
- secrete enzymes
- eat the food
bioremediation
using microbes to clean up pollutants
,Bacillus thuringienisis
can kill insects but doesn't harm plants or animals
Order of the Scientific Method
observe
hypothes
is
predictio
n
experime
nt
consistenc
y theory
law
Mycology
study of fungi
bacteriology
study of bacteria
virology
study of viruses
,algology
study of algae
protozoology
study of protozoa
Robert Hooke
• 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
• 1st cells observed under the microscope
also made the original electron microscope : 10 mil X
Rebecca Lancefield
• came up with the system that help classifying different microorganisms
• it was all based on different polysaccharides in the cell wall
also helped discover Streptococcus pyognes - which is basically strep
and we know this because pyognes is a pus forming microorganism
, Joseph Lister
• discovered phenol: was used to stop surgical would infections
• usually in hospitals : Staphylococcus aures aka staph infection
at least 20% of population is a carrier for the staph infection and they
carry it in their noses
Louis Pasteur
• father of microbiology and is the most important scientist in microbiology
• showed that microbes are responsible for fermentation
• Fermentation: conversion of sugar to alcohol in the absence of air
• Discovered that pasteurization was something that could stop food
spoilage
• Pasteurization: the application of a high heat for a short time to kill
harmful bacteria in beverages
How was he lucky in his discovery of pasteurization?—there we're no
endospores and that would should have been detected during the
search for spontaneous
generation but it didn't
Robert Koch
Proved that bacterium causes anthrax and provided the experimental
steps of Koch's Postulate
Edward Jenner
• Discovered vaccination (or the process of vaccination)
Did it through using cow parts to vaccinate a child to protect against small
pox
