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Mycoplasmas Aishath Majidha Hassan Objectives

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Mycoplasmas Aishath Majidha Hassan Objectives

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Questions and Answers

Which bacterial species is the smallest free-living bacteria?

Ureaplasma urealyticum

Mycoplasma genitalium (correct)

Mycoplasma pneumoniae

Mycoplasma hominis

What characteristic makes mycoplasmas highly fastidious?

Ability to grow on simple media

Large genome size

Presence of many metabolic pathways

Lack of many metabolic pathways (correct)

Which genus is facultative anaerobe except for one species?

Mycoplasmataceae

Mycoplasma (correct)

Ureaplasma

Mollicutes

Among the listed genera, which one requires complex media for isolation?

Mycoplasma Signup and view all the answers

What distinguishes mycoplasmas in terms of genome size compared to other bacteria?

They have the smallest genome Signup and view all the answers

Which of the following statements about Mycoplasma pneumoniae is true?

It is a strict pathogen that causes upper respiratory tract disease. Signup and view all the answers

What is the primary virulence factor of Mycoplasma pneumoniae?

Adherence proteins like P1 adhesin Signup and view all the answers

What is the result of Mycoplasma pneumoniae colonization in the respiratory tract?

Ciliostasis and destruction of epithelial cells Signup and view all the answers

Which of the following statements about the epidemiology of Mycoplasma pneumoniae is false?

It is more prevalent in tropical regions. Signup and view all the answers

Which of the following organisms is associated with non-gonococcal urethritis and spontaneous abortions?

Ureaplasma urealyticum Signup and view all the answers

What is a characteristic feature of Mycoplasma species?

They lack sterols in their cell membrane. Signup and view all the answers

How are Mycoplasma species typically diagnosed in the laboratory?

Serology (ELISA, cold agglutinins, complement fixation test) Signup and view all the answers

Which of the following statements about the clinical manifestations of Mycoplasma pneumoniae infection is true?

The incubation period is typically 2 to 3 weeks. Signup and view all the answers

Which of the following statements about the colonization of Mycoplasma hominis and Ureaplasma urealyticum is false?

Carriers are always symptomatic. Signup and view all the answers

What is a requirement for the growth and membrane synthesis of Mycoplasma species?

Presence of sterols Signup and view all the answers