Multiple Choice
Emerging viruses that infect human cells can originate from which of the following sources?
31
views
1. Introduction to Microbiology
Acellular Infectious Agents: Viruses, Viroids & Prions
Back1. Introduction to Microbiology
Acellular Infectious Agents: Viruses, Viroids & Prions
- Multiple ChoiceWhich of the following is the most common means of virus distribution?20views
- Multiple ChoiceBacteriophages and animal viruses do not differ significantly in which one of the following steps of their replication cycles?45views
- Multiple ChoiceWhich of the following is NOT used as a criterion to classify viruses?37views
- Multiple ChoiceAll viruses are made up of two essential components. These components are:28views
- Multiple ChoiceWhich statement best explains why viruses are considered non-living entities?36views
- Multiple Choice
Viruses:
1482views31rank - Multiple Choice
This type of acellular infectious agent is only known to infect plants and is a small, circular, single-stranded nucleic acid molecule.
1489views18rank - Multiple Choice
An infectious protein is known to cause neurodegenerative diseases in humans such as Creutzfeldt-Jakob disease ('mad cow disease'). This type of acellular infectious agent is known as a _________.
1414views19rank - Multiple Choice
Which of the following statements about acellular infectious agents is FALSE?
1505views24rank - Textbook Question
All of the following can be transmitted by recreational (i.e., swimming) water sources except
a. amebic dysentery.
b. cholera.
c. giardiasis.
d. hepatitis B.
e. salmonellosis.
558views - Textbook Question
Which of the following is not an acellular agent?
a. viroid
b. virus
c. rickettsia
d. prion
765views - Textbook Question
Which of the following statements is true?
a. Viruses move toward their host cells.
b. Viruses are capable of metabolism.
c. Viruses lack a cytoplasmic membrane.
d. Viruses grow in response to their environmental conditions.
553views - Textbook Question
A virus that is specific for a bacterial host is called a __________ .
a. phage
b. prion
c. virion
d. viroid
581views - Textbook Question
A naked virus __________ .
a. lacks a membranous envelope
b. has injected its DNA or RNA into a host cell
c. is devoid of capsomeres
d. is one that is unattached to a host cell
796views