Chlamydia Flashcards

0
Q

The elementary bodies of Chlamydia often infect what kind of cells in the body?

A

Columnar epithelial cells

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1
Q

The elementary body of Chlamydia is rigid because of __

A

Cross-linking of disulfide bonds

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2
Q

How does a reticulate body produce elementary bodies?

A

Binary fission

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3
Q
False about Chlamydia reticulate body
A. Infectious
B. Metabolically active
C. Fragile membrane
D. lack crosslinking of disulfide bonds
A

A

Elementary body ang infectious

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4
Q
How are serovars of C.trachomatis classified?
A. Major outer membrane proteins
B. Culture media
C. Presence of flagella
D. Oxidase test result
A

A

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5
Q

C.trachomatis affects humans only. T or F?

A

T

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6
Q

Infection of C.trachomatis stimulates long-lasting immunity. T or F?

A

T

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7
Q

Patients with trachoma infection may be also infected with gonorrhea. T or F?

A

T

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8
Q
Trachoma may lead to blindness due to scarring of this part of the eye 
A. Retina
B. Iris
C. Conjunctiva
D. Lens
A

C.Conjunctiva

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9
Q
What abnormality is usually seen in conjunctivitis caused by trachoma?
A. Lack of muta
B. Milky muta
C. More tears
D. All of the above
A

B

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10
Q

Secondary stage of lymphogranuloma venereum, present in C.trachomatis infectionw

A

Painful buboe

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11
Q

In culture process of C.trachomatis, ___ stains glycogen in inclusion bodies, that is why it is used

A

Iodine

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12
Q

Antigen detection technique usually used in ER,OPD

A

ELISA

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13
Q

Antigen detection technique usually used to confirm results of other diagnostic tests

A

DFA

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14
Q

What was C.pneumoniae originally called?

A

TWAR strain

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15
Q

C.pneumoniae attaches to host cell via __

A

Major outer membrane proteins

16
Q

Another name for psittacosis

A

Parrot fever

17
Q

C.psittaci mainly infects

A.cats
B.dogs
C.fishes
D.birds

A

D

18
Q

psittacosis may be treated with erythromycin, true or false?

A

True

19
Q

What serologic technique is usually used to detect C.psittaci?

A

Microimmunofluorescence

20
Q

Which organs may experience organomegaly in the pathogenic course of C.psittaci?

A

Liver and spleen

21
Q

Which is TRUE?
A.peptidoglycan layer is lacking in Chlamydia
B.RB produces proteins when they enter and become EB
C.RB enters cell via receptor-mediated endocytosis and pinocytosis
D. conglomerations of RB produce inclusion cells

A

A

for B: EB produces proteins and becomes RB
for C AND D: EB dapat. NOT RB

22
Q

When iodine is used to stain glycogen @ inclusion bodies, the technique s called

A

McCoy cell lines