Virus Taxonomy and Nomenclature

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What is the characteristic of Eubacteria cell walls?

Lack a cell wall
Composed of a lipid and protein complex
Composed of a carbohydrate and protein complex (correct)
Primarily made up of cellulose

How do Eubacteria typically reproduce?

Through binary fission (correct)
Through mitosis
Through photosynthesis
Through meiosis

What is a characteristic of Eubacteria in terms of cellular structure?

They have a large nucleus
They lack a nucleus (correct)
They have a cell wall made of cellulose
They have multiple cells

How should a species, genus, and family of a virus be formatted when used in a taxonomic sense?

In italics (A) Signup and view all the answers

What is the rule for capitalizing a virus name?

Only capitalize the virus name if it has a proper name in it (A) Signup and view all the answers

What is the rule for abbreviating a virus name?

Only abbreviate the virus name after defining it (B) Signup and view all the answers

What is a characteristic unique to fungi among the microorganisms mentioned?

Presence of a distinct nucleus containing genetic material (C) Signup and view all the answers

What is the primary mode of nutrition in fungi?

Absorbing dissolved molecules (D) Signup and view all the answers

Which of the following is a characteristic of helminths?

Multicellular animal parasites (A) Signup and view all the answers

What is the primary function of light, water, and carbon dioxide for algae?

Enabling photosynthesis and food production (D) Signup and view all the answers

What is a characteristic shared by both algae and fungi?

Eukaryotic cell structure (C) Signup and view all the answers

Which of the following is a characteristic of molds?

Multicellular structure with hyphae (C) Signup and view all the answers

What is the primary reason viruses are not considered living organisms?

They are unable to reproduce on their own (B) Signup and view all the answers

What is the main purpose of Koch's Postulates?

To establish the criteria for determining the cause of a disease (A) Signup and view all the answers

What is the term for an individual who is infected with a pathogen but does not show symptoms of the disease?

Asymptomatic carrier (B) Signup and view all the answers

What is the characteristic of opportunistic pathogens that distinguishes them from other pathogens?

They take advantage of a compromised immune system (A) Signup and view all the answers

What is the structure of a virus particle or virion?

A small amount of DNA or RNA wrapped in protein and sometimes by a lipid membrane (C) Signup and view all the answers

What is the fourth criterion of Koch's Postulates?

The microorganism must be re-isolated from the inoculated, diseased individual and matched to the original microorganism (D) Signup and view all the answers

What is the primary goal of treatment in medical microbiology?

To eliminate or control the infection, alleviate symptoms, and prevent complications (A) Signup and view all the answers

What is the term for the study of the causes or origins of diseases or conditions?

Etiology (B) Signup and view all the answers

What is the term for the process by which a disease or condition develops and progresses within the body?

Pathogenesis (D) Signup and view all the answers

What is the term for the measures and practices implemented to prevent and reduce the transmission of infectious agents?

Infection control (B) Signup and view all the answers

What is the term for the science of bacteria that can cause infectious diseases in humans?

Medical Bacteriology (D) Signup and view all the answers

What is the term for the microorganisms that reside on either surface of the body or at mucosa without harming human health?

Commensals (B) Signup and view all the answers

What is a major limitation of the germ theory of disease?

It oversimplifies the complex interactions between host and environment (B) Signup and view all the answers

Which of the following is a reason why not all pathogens are culturable?

Some pathogens are obligate human pathogens (A) Signup and view all the answers

What is implied by the statement 'infectious disease is primarily caused by transmission of an organism from one host to another—is a gross oversimplification'?

The germ theory neglects other factors that contribute to disease (B) Signup and view all the answers

Why do pathogens may become less pathogenic when grown in vitro?

They are affected by the lack of host immune system (D) Signup and view all the answers

What is an example of a multifactorial disease?

A disease caused by a combination of genetic and environmental factors (D) Signup and view all the answers

What is the main argument against the germ theory of disease?

It is too simplistic and neglects other factors (C) Signup and view all the answers