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Q:l Rheumaticl feverl displaysl ______l hemolyticl activityl andl occursl whenl
______l isl leftl untreated.
Answer:
Beta; Strep.l Pharyngitis
(Strepl throatl (alsol knownl asl strep.l Pharyngitis)l canl leadl tol Rheumaticl feverl ifl leftl untreatedl andl displaysl beta-hemolyticl activity.)
Q:l Truel orl False:l Underl mostl circumstances,l Staphylococcusl canl bel foundl inl ~30%l ofl humanl populationl wherel itl remainsl pathogenic.
Answer:
False
Whilel Staphylococcusl canl bel foundl inl ~30%l ofl thel humanl population,l itl remainsl non-symptomatic.
Q:l Truel orl False:l Underl mostl circumstances,l staphylococcusl canl bel foundl inl ~80%l ofl humanl populationl wherel itl remainsl non-symptomatic.
BIOLl271l /l BIOL271l Modulesl 5 & 6:l
(Latestl 2026/l 2027l Update)l 100%l Verifiedl Questionsl &l Answersl |l Gradel
A 1 / 3
Answer:
Falsel
(Staphylococcusl isl onlyl foundl (non-symptomatic)l inl ~30%l ofl thel humanl population.)
Q:l Definel commensall bacteria.
Answer:
Thel bacteriuml neitherl harmsl norl benefitsl froml thel hostl froml whichl itl obtainsl nutrients.
Q:l Howl canl staphylococcusl bel differentiallyl tested?
Answer:
Staphylococcusl speciesl arel capablel ofl growthl inl thel presencel ofl bilel saltsl (MSAl agar).
Q:l Matchl thel followingl symptomsl withl theirl respectivel diseases:
1.l Folliculitis 2.l Scaldedl skinl syndrome 3.l Impetigo 4.l Conjunctivitis 5.l Ophthalmial neonatorum
A.l Childhoodl skinl diseasel nearl mouth/nose 2 / 3
B.l Infectionl ofl thin,l transparentl sclerall tissue C.l Infectionl occursl atl timel ofl birth D.l Pus-filledl lesionsl onl skinl orl hair E.l Ruptured-pustules;l treatedl withl penicillin
Answer:
1.l Folliculitis:l
Pus-filledl lesionsl onl skinl orl hairl
2.l Scaldedl skinl syndrome:
Ruptured-pustules;l treatedl withl penicillinl
3.l Impetigo:l
Childhoodl skinl diseasel nearl mouth/nose
4.l Conjunctivitis:
Infectionl ofl thin,l transparentl sclerall tissuel
5.l Ophthalmial
neonatorum:
Infectionl occursl atl timel ofl birth
Q:l Truel orl false:l Staphylococcusl isl thel onlyl causativel agentl ofl conjunctivitis.
Answer:
False
(Therel arel bacteriall andl virall formsl ofl conjunctivitis.)
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