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Jugar Test
1. 
Which of the following is a characteristic used in the classification and identification of bacteria?
A.
Geographic origin
B.
Cell morphology
C.
Color of colony
D.
Size of the bacterial cell
2. 
Bacteria that lack a cell wall:
A.
Gram-positive
B.
Gram-negative
C.
Mycoplasma sp
D.
Spirochetes
3. 
Which of the following shapes describes rod-shaped bacteria?
A.
Cocci
B.
Bacilli
C.
Spirilla
D.
Vibrio
4. 
Cocci bacteria can be found in which of the following arrangements?
A.
Chains
B.
Clusters
C.
Tetrads
D.
All of these are possible arrangements
5. 
What is the average diameter of a coccus?
A.
0.5 µm
B.
1 µm
C.
2 µm
D.
5 µm
6. 
Which of the following is NOT a characteristic of bacilli?
A.
Short or long
B.
Round shape
C.
Thick or thin
D.
Pointed or blunt ends
7. 
An average-sized bacillus measures approximately:
A.
1 x 1 µm
B.
1 x 2 µm
C.
1 x 3 µm
D.
2 x 2 µm
8. 
Which of the following bacteria are classified as curved bacteria?
A.
Escherichia
B.
Treponema
C.
Vibrio
D.
Bacillus
9. 
Examples of spiral-shaped bacteria include:
A.
Campylobacter
B.
Borrelia
C.
Helicobacter
D.
Neisseria
10. 
What is the most common structure associated with bacterial motility?
A.
Pili
B.
Flagella
C.
Capsules
D.
Endotoxins
11. 
Which of the following is NOT a classification of bacteria based on their atmospheric requirements?
A.
Obligate aerobes
B.
Facultative anaerobes
C.
Capnophilic organisms
D.
Anaerobic fermenters
12. 
Capnophilic organisms grow best in the presence of increased concentrations of:
A.
Oxygen
B.
Nitrogen
C.
Carbon dioxide
D.
Hydrogen
13. 
Which of the following elements is NOT typically required by bacteria for growth?
A.
Carbon
B.
Helium
C.
Nitrogen
D.
Phosphorus
14. 
Bacteria with special and demanding nutritional requirements are termed:
A.
Simple
B.
Basic
C.
Fastidious
D.
Invasive
15. 
Which of the following bacteria are examples of medically important bacilli?
A.
Helicobacter
B.
Bacillus
C.
Vibrio
D.
Treponema
16. 
Pathogenic bacteria that secrete enzymes are often tentatively identified based on:
A.
Their color
B.
The gases they produce
C.
The enzymes they secrete
D.
Their shape
17. 
Which of the following bacteria is known for producing hydrogen sulfide?
A.
Neisseria meningitidis
B.
Vibrio cholerae
C.
Salmonella typhi
D.
Treponema pallidum
18. 
Bacteria that possess capsules, pili, or endotoxins are more likely to:
A.
Be non-pathogenic
B.
Cause disease
C.
Be gram-positive
D.
Have a complex shape
19. 
Which of the following is NOT a common pathogenic bacterium?
A.
Yersinia pestis
B.
Shigella spp.
C.
Haemophilus
D.
Treponema pallidum
20. 
Which bacterial shape can be described as "spiral"?
A.
Cocci
B.
Bacilli
C.
Vibrio
D.
Spirilla
21. 
Which of the following arrangements is characteristic of cocci?
A.
Chains
B.
Filaments
C.
Spirals
D.
Rods
22. 
Bacteria that can grow in the presence of increased CO2 are known as:
A.
Capnophilic
B.
Aerotolerant
C.
Microaerophilic
D.
Facultative
23. 
Which bacteria are known for their spiral shape and are often found in cases of Lyme disease?
A.
Treponema
B.
Borrelia
C.
Helicobacter
D.
Vibrio
24. 
Which of the following statements about bacterial motility is TRUE?
A.
Most cocci are motile.
B.
Bacterial motility is often associated with flagella
C.
Only bacilli are motile
D.
Motility is associated with ribosomes
25. 
Bacilli that are extremely short and resemble cocci are termed:
A.
Coccobacilli
B.
Diplobacilli
C.
Streptobacilli
D.
Spirilla
26. 
Which of the following is NOT a type of bacterial arrangement?
A.
Tetrads
B.
Octads
C.
Clusters
D.
Helicoids
27. 
Which group of bacteria includes Neisseria meningitidis and Vibrio cholerae?
A.
Bacilli
B.
Cocci
C.
Curved bacteria
D.
Spiral bacteria
28. 
Which type of bacteria would most likely be classified as an aerotolerant anaerobe?
A.
Bacteria that grow best with high levels of oxygen
B.
Bacteria that do not require oxygen but can tolerate its presence
C.
Bacteria that require oxygen for growth
D.
Bacteria that only grow in low oxygen levels