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Gram-negative bacteria: Quiz


Question 1: The outer leaflet of the membrane comprises a complex lipopolysaccharide whose ________ portion acts as an endotoxin.

Question 2: ________ is a common result of cytokine (from the Greek cyto, cell and kinesis, movement) production, which can also produce host toxicity.
InflammationLeukocyte extravasationMeningitisVasculitis

Question 3: The test itself is useful in classifying two distinct types of bacteria based on the structural differences of their ________.
Cell wallChloroplastCell envelopePlastid

Question 4: Other notable groups of Gram-negative bacteria include the ________, spirochaetes, green sulfur and green non-sulfur bacteria.
ProkaryoteCyanobacteriaGram-positive bacteriaStreptococcus iniae

Question 5: Other drugs can be used, namely ________, streptomycin, and nalidixic acid.

Question 6: The outer membrane provides these bacteria with resistance to lysozyme and ________.
CycloserinePenicillinBeta-lactam antibioticCephalosporin

Question 7: [1] In humans, LPS triggers an innate immune response characterized by ________ production and immune system activation.

Question 8: This outer membrane protects the bacteria from several ________, dyes, and detergents which would normally damage the inner membrane or cell wall (peptidoglycan).
Nucleic acid inhibitorAntibioticATC code J01Antibiotic misuse

Question 9: Medically relevant Gram-negative cocci include three organisms, which cause a sexually transmitted disease (Neisseria gonorrhoeae), a meningitis (________), and respiratory symptoms (Moraxella catarrhalis).
Haemophilus influenzaeYersinia pestisPathogenic bacteriaNeisseria meningitidis

Question 10: If present, ________ have four supporting rings instead of two


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