Quiz Mikrobiologi 1 Virus, Bakteri, Actinomycetes
- 1.Viruses are simple, acellular, infectious agents
- A.
- 2.Viruses can reproduce independently from the host cell
- A.
True
- B.
False
- 3.Viruses are composed of
- A.
- 4.Localized areas of cellular destruction and lysis caused by virus infection are called __________
- A.
- 5.Viruses may harm their host cells by ____________
- A.
- 6.The first step in the animal virus cycle is __________
- A.
Uncoating
- B.
Penetration of the host cell
- C.
Adsorption to the host cell surface
- 7.Which of the following is true about the G + C content of organisms?
- A.
G + C content of organisms is easily determined
- B.
G + C content is taxonomically valuable
- C.
G + C content indirectly reflects the base sequence of the organism
- D.
All of these are true about the G + C content of organisms.
- 8.Archaea differ from other bacterial groups in that they have special structural, chemical and metabolic adaptations that enable them to grow in extreme environments
- A.
- 9.Archaea usually grow in a few restricted or specialized habitats, such as
- A.
Anaerobic
- B.
Hypersaline
- C.
Extremely hot
- D.
Exremely cold
- E.
All of these
- 10.The deinococci are gram-positive cocci and rods that are distinctive in their unusually great resistance to ____________
- A.
Radiation
- B.
Desiccation
- C.
Radiation and desiccation
- D.
Extreme temperatures
- 11.Which of the following is not a group of photosynthetic bacteria?
- A.
The green bacteria
- B.
The purple bacteria
- C.
The cyanobacteria
- D.
All of these are groups of photosynthetic bacteria
- 12.The spirochetes include the causative agents for _______
- A.
Syphilis
- B.
Lyme disease
- C.
Both syphilis and Lyme disease.
- D.
Neither syphilis nor Lyme disease.
- 13.Proteobacteria are gram-negative bacteria of considerable importance as ________
- A.
Disease agents
- B.
Nitrogen fixers
- C.
Major experimental organisms
- D.
All of these
- 14.Which of the following genera grow symbiotically within root nodules of legumes as nitrogen-fixing bacteroids?
- A.
Agrobacterium
- B.
Rhizobium
- C.
Pseudomonas
- D.
Bacteroides
- 15.Helicobacter pylori is responsible for ________
- A.
Gastroenteritis.
- B.
Cholera.
- C.
Bacterial dysentery.
- D.
Peptic ulcer disease.
- 16.The causative agent for cholera in humans is a member of the genus __________
- A.
Escherichia
- B.
Vibrio
- C.
Enterobacter
- D.
Shigella
- 17.Actinomycetes are the primary source of antibiotics we use in medicine
- A.
True
- B.
False
- 18.Pseudomonads are a large group of bacteria which can _________
- A.
Spoil refrigerated food
- B.
Cause disease
- C.
Photosynthesize
- D.
A and b
- E.
A and c
Questions: 5 | Attempts: 345 | Last updated: Feb 7, 2016
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