BIOLl271l /l BIOL271l Modulesl 5 & 6:l
(Latestl 2026/l 2027l Update)l 100%l
Verifiedl Questionsl &l Answersl |l Gradel
A
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.
,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
, 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.)
(Latestl 2026/l 2027l Update)l 100%l
Verifiedl Questionsl &l Answersl |l Gradel
A
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.
,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
, 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.)
