ttu Exam Questions & Answers (Grade
A+)
What is a microbe or microorganism? -
correct answer ✅• A living organism that requires a microscope to
be seen.
How were microbes discovered? -
correct answer ✅Antoni van Leeuwenhoek • Microscope: the
most critical invention in microbiology
How are microbes classified -
correct answer ✅prokaryotes, eukaryotes, non-cellular
Prokaryotes NO NUCLEUS -
correct answer ✅Bacteria
Archaea
Eukaryotes HAVE NUCLEUS -
correct answer ✅Fungi
Protozoa
Algae
,Microbiology Exam 1 Review Zhang
ttu Exam Questions & Answers (Grade
A+)
Non-cellular Neither pro nor euk. -
correct answer ✅Viruses
Louis Pasteur -
correct answer ✅- disproved spontaneous generation w swan neck
flask experiment
- began field of industrial microbiology
- developed germ theory of disease
Fermentation -
correct answer ✅Pasteur's experiments taught us:
- microbial activities cause fermentation
Pasteurization -
correct answer ✅process of heating liquids enough to kill most
bacterial
Robert Koch (1843-1910) -
correct answer ✅koch's postulates
,Microbiology Exam 1 Review Zhang
ttu Exam Questions & Answers (Grade
A+)
What are Koch's postulates (etiology)? -
correct answer ✅1. Suspected causative agent must be found in
every case of the disease and be absent from healthy hosts
2. Agent must be isolated and grown outside the host
3. When agent is introduced into a healthy, susceptible host, the
host must get the disease
4. Same agent must be found in the diseased experimental host
Florence Nightingale -
correct answer ✅- Founder of modern nursing
- Medical statistics and sanitary reform
Role microorganisms play in environment -
correct answer ✅- producers
- recycling of chemicals such as Carbon, Nitrogenm and Sulfur
-MOST microbes are NOT pathogenic
How do we prevent/ defend against disease -
correct answer ✅1. Hygiene - wash hands etc
2. Immunology- vaccines
, Microbiology Exam 1 Review Zhang
ttu Exam Questions & Answers (Grade
A+)
3. Chemotherapy-
how do microves reproduce -
correct answer ✅Biochemistry
Genetics
How to use microbes to improve human life -
correct answer ✅health
environment
industry
common elements microbes are composed of (organic molecules) -
correct answer ✅carbon
hydrogen
oxygen
nitrogen
phosphorus
sulfur
sodium