MICROBIOLOGY EXAM 1 2026/2027
WITH OVER 120 QUESTIONS AND
CORRECT ANSWERS RATED A+
Woes
discovered the 3 domains and they were all based on the sequences of
nucleotides in rRNA
Carols Linnaeus
established the system of scientific nomenclature
Spontaneous Generation
the hypothesis that life arises from non living matter ; a vital force is necessary fro
life
disproven by Louis Pasteur
Biogenesis
the hypothesis that living cells arise only from preexisting living cells
divide through the binary fission process
Koch's Postulate
1. take sample
2. grow it in a pure sample
3. inject it into the same type of organism but a new one
4. take sample form new organism
5. see that if it's the same microorganism that that's one that was the culprit
exceptions to koch's postulate
- Viruses like syphailis and leprosy cannot grow in a artificial media therefore they
have to grow in a tissue culture in order for it to grow like we need it to
,- Ethical issues
• Ex: HIV or E. Coli
Microbial genetics
the study of how microbes inherit traits
Molecular biology
the study of how DNA directs proteins synthesis
protein synthesis- ribosomes
genomics
the study of an organism genes
has provided new tools for classifying microorganisms
Eurkarya
-animals
-Plants
- Fungi:
• Distinct nucleus
• Chitin in cell walls
• Absorb organic chemicals for energy
• Yeasts: unicellular
• Molds and Mushrooms: multicellular
what are the different magnifications of a bright field microscope
4x
10x
40x
100x
what is the kind of microscope that you use when looking at a virus
electron microscope
, what are the different magnifications of the electron microscope
1 mil
2 mil
10 mil
How are microbes helpful
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
70/10 mil
what knowledge do microbes give humans
prevent diseases
allow food storage and prevent food spoilages
stop transmission of diseases
Microbiology
the study of organisms too small to be seen with the naked 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
WITH OVER 120 QUESTIONS AND
CORRECT ANSWERS RATED A+
Woes
discovered the 3 domains and they were all based on the sequences of
nucleotides in rRNA
Carols Linnaeus
established the system of scientific nomenclature
Spontaneous Generation
the hypothesis that life arises from non living matter ; a vital force is necessary fro
life
disproven by Louis Pasteur
Biogenesis
the hypothesis that living cells arise only from preexisting living cells
divide through the binary fission process
Koch's Postulate
1. take sample
2. grow it in a pure sample
3. inject it into the same type of organism but a new one
4. take sample form new organism
5. see that if it's the same microorganism that that's one that was the culprit
exceptions to koch's postulate
- Viruses like syphailis and leprosy cannot grow in a artificial media therefore they
have to grow in a tissue culture in order for it to grow like we need it to
,- Ethical issues
• Ex: HIV or E. Coli
Microbial genetics
the study of how microbes inherit traits
Molecular biology
the study of how DNA directs proteins synthesis
protein synthesis- ribosomes
genomics
the study of an organism genes
has provided new tools for classifying microorganisms
Eurkarya
-animals
-Plants
- Fungi:
• Distinct nucleus
• Chitin in cell walls
• Absorb organic chemicals for energy
• Yeasts: unicellular
• Molds and Mushrooms: multicellular
what are the different magnifications of a bright field microscope
4x
10x
40x
100x
what is the kind of microscope that you use when looking at a virus
electron microscope
, what are the different magnifications of the electron microscope
1 mil
2 mil
10 mil
How are microbes helpful
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
70/10 mil
what knowledge do microbes give humans
prevent diseases
allow food storage and prevent food spoilages
stop transmission of diseases
Microbiology
the study of organisms too small to be seen with the naked 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
