1.
Disease-causing microorganisms are called
A. 
B. 
C. 
D. 
2.
The microorganisms that recycle nutrients by breaking down dead matter and wastes are called
A. 
B. 
C. 
D. 
3.
The microorganisms that do not have a nucleus in their cell wall are called
A. 
B. 
C. 
D. 
4.
Which activity is an example of biotechnology?
A. 
Bacteria in the soil secreting an antibiotic to kill competitors
B. 
A microbiologist using the microscope to study bacteria
C. 
Humans using yeast to make beer and wine
D. 
Mycobacterium tuberculosis in the lungs causing TB
5.
The Dutch merchant who made and used quality magnifying lenses to see and record microorganisms was
A. 
B. 
C. 
D. 
6.
Spontaneous generation is the belief that
A. 
Germs cause infectious diseases
B. 
Microbes are diverse and ubiquitous
C. 
Microbes placed in an infusion can grow in it
D. 
Living things arise from nonliving matter
7.
Koch's postulates are criteria used to establish that
A. 
Microbes are found on dust particles
B. 
A specific microbe is the cause of a specific disease
C. 
Life forms can only arise from preexisting life forms
D. 
A specific microbe should be classified in a specific kingdom
8.
Which scientist discovered heat resistant bacterial spores
A. 
B. 
C. 
D. 
9.
The rash and/or hemorrhage associated to Rocky Mountain spotted fever and Typhus occur when this bacterium targets the endotheilal cells that line blood vessels
10.
This bacterium has a life cycle that includes elementary and reticulate bodies
11.
This bacterium is a member parasite that adheres to and damages the mucous membrane of the respiratory, urinary, and reproductuve tracts
12.
This bacterium causes a commonly acquired sexually transmitted bacterial disease and Trachoma, the most common cause of blindness
13.
Which bacterium was the first organisms to produce oxygen as a byproduct of photosynthesis
14.
If microbiologist is studying a specimen at a total mag of 950x, what is the magnifying power of the objective lens if the ocular lens is 10x
A. 
B. 
C. 
D. 
15.
Which microscope achieves the greatest resolution and highest magnification
A. 
B. 
C. 
D. 
16.
Which microscope bombard a whole, metal-coated specimen with electrons moving back and forth over it
A. 
B. 
Differential interference contrast
C. 
D. 
17.
The primary purpose of staining cells on a microscope slide is to
A. 
B. 
C. 
D. 
Add contrast in order to see them better
18.
A microbiologist makes a fixed smear of bacterial cells and stains them with methylene blue. all the cells appear blue under the oil lens. this is an example of
A. 
B. 
C. 
D. 
19.
Why is immersion oil often used when viewing specimens under the microscope
A. 
B. 
To prevent smear from drying out
C. 
To slow bacterial movement so you can see cells better
D. 
To increase the resolution
20.
Spirochetes have a twisting and flexing locomotion due to
A. 
B. 
C. 
D. 
21.
Magnification is achieved in a compound microscope through the initial magnification of the specimen by the ______ lens. This image is then projected to the _________ lens that will further magnify the specimen to form a virtual image received by the eye
22.
The transfer of genes during bacterial conjugation involve rigid, tubular appendages called
A. 
B. 
C. 
D. 
23.
The term that refers to the presence of flagella all over the cell surface is
A. 
B. 
C. 
D. 
24.
The outcome of the gram stain is based on differences in cell's
A. 
B. 
C. 
D. 
25.
The most immediate result of destruction of a cell's ribosomes would be
A. 
Material would not be able to cross cell membrane
B. 
Protein synthesis would stop
C. 
Destruction of cell's DNA
D. 
Formation of glycogen inclusions