MICROBIOLOGY EXAM 1(ACTUAL EXAM)
WITH CORRECT 170+ QUESTIONS AND
ANSWERS LATEST 2024 – 2025 GOOD
SCORE IS GUARANTEED GRADE A+
3 types of transport protein - ANSWERS-uniport
antiport
symport-coupled
Uniport - ANSWERS-protein can only transfer 1 type of molecule
Antiport - ANSWERS-2 molecules in 2 different directions
what kind of microscope do you use when you are working with
microorganisms you can't see? - ANSWERS-bright field microscope
,what are the different magnifications of a bright field microscope -
ANSWERS-4x
10x
40x
100x
what is the kind of microscope that you use when looking at a virus -
ANSWERS-electron microscope
Microorganism - ANSWERS-are organisms that are too small to see with
the unaided eye
examples of microorganisms - ANSWERS-bacteria
fungi
protozoa
microscopic algae
viruses
,what are the different magnifications of the electron microscope -
ANSWERS-1 mil
2 mil
10 mil
How are microbes helpful - ANSWERS-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 -
ANSWERS-70/10 mil
what knowledge do microbes give humans - ANSWERS-prevent
diseases
allow food storage and prevent food spoilages
stop transmission of diseases
Microbiology - ANSWERS-the study of organisms too small to be seen
with the naked eye
, microbial ecology - ANSWERS-the study of the relationship between
microorganisms and their environment
competitive exclusion - ANSWERS-a way to kill the bad bacteria
- change in the pH
- secrete enzymes
- eat the food
bioremediation - ANSWERS-using microbes to clean up pollutants
Bacillus thuringienisis - ANSWERS-can kill insects but doesn't harm
plants or animals
Order of the Scientific Method - ANSWERS-observe
hypothesis
prediction
experiment
consistency
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