Modulel 4:l BIODl 102/l BIOD102l (Latestl
2025/l 2026l Update)l Essentiall Biologyl IIl
W/Labl |l Questionsl &l Answers|l Gradel A|l
100%l Correctl (Verifiedl Solutions)-l
Portagel Learning
Q:l Evaporativel coolingl inl thel forml ofl sweatingl isl thel mostl efficientl methodl tol
reducel bodyl temperaturel andl isl oftenl thel firstl linel ofl interventionl usedl tol assistl al
patientl inl reducingl bodyl temperature.l Whatl arel behaviorall changesl onel canl makel tol
returnl thel bodyl tol itsl optimall setl point?
Answer:
behaviorall changes,l suchl asl seekingl shadel orl takingl offl layersl ofl clothingl orl covering,l
arel alsol waysl tol increasel heatl lossl andl returnl thel bodyl temperaturel tol itsl setl pointl
range.
Q:l Calcitoninl isl al peptidel hormonel thatl isl manufacturedl andl releasedl byl thel
_________ofl thel thyroid.
Answer:
parafollicularl cells
Q:l Chemoreceptorsl sensel changesl inl eachl ofl thel followingl except:
a.l Bloodl oxygenl concentration
b.l Bloodl carbonl dioxidel concentration
c.l Bloodl phosphatel levels
d.l Bloodl pH
,Answer:
c
Q:l Whatl isl thel rolel ofl estrogenl duringl parturition?
Answer:
Itl increasesl thel sensitivityl ofl uterinel smoothl musclel tol facilitatel contraction.
Q:l Whichl ofl thel followingl statementsl isl TRUEl regardingl PTH?
a.l Itl directlyl increasesl bloodl calciuml levelsl byl stimulatingl thel workl ofl osteoclasts.
b.l Itl directlyl increasesl bloodl calciuml levelsl byl bindingl tol kidneyl tubules,l increasingl
thel reabsorptionl ofl calcium.
c.l Itl indirectlyl increasesl bloodl calciuml levelsl byl stimulatingl thel kidneysl tol promotel thel
activationl ofl Vitaminl D.
d.l Alll ofl thel above
Answer:
d
Q:l Explainl howl epinephrinel worksl tol increasel bloodl pressure.
Answer:
Epinephrinel isl al hormonel thatl targetsl thel heart,l bloodl vessels,l liver,l andl adiposel tissue.l
Bindingl tol heartl cellsl increasesl heartl ratel andl strokel volume,l therebyl increasingl bloodl
pressure.l Thel smoothl musclel ofl thel bloodl vessell wallsl isl stimulatedl tol constrict,l whichl
alsol contributesl tol anl increasel inl bloodl pressure
Q:l Thel bindingl ofl glucagonl tol ______l tissuel facilitatesl thel conversionl ofl storedl
glycogenl intol glucosel inl al processl calledl _________.
, Answer:
liver;l glycogenolysis
Q:l Explainl howl Angiotensinl IIl andl aldosteronel workl togetherl tol increasel bloodl
pressure.
Answer:
Angiotensinl IIl targetsl cellsl ofl thel adrenall cortex.l Thel cellsl ofl thel adrenall cortexl
respondl tol angiotensinl IIl byl increasingl thel secretionl ofl aldosterone,l whichl isl al steroidl
hormonel thatl targetsl cellsl ofl thel distall tubulesl andl collectingl ductsl tol increasel
reabsorptionl ofl sodiuml andl water.l Thisl contributesl tol anl increasel inl bloodl volume.l Thel
combinationl ofl bloodl vessell constrictionl (effectl ofl Angiotensinl II)l andl increasedl bloodl
volumel contributesl tol al risel inl bloodl pressure
Q:l Describel al heat-generatingl mechanisml usedl byl thel bodyl whenl al dropl inl bodyl
temperaturel isl detected.
Answer:
Whenl corel temperaturel drops,l skeletall musclesl arel stimulatedl tol movel tol producel
frictionl andl heatl throughl shivering.l Shiveringl isl al mechanisml thatl producesl andl
conservesl heat
Q:l Whatl happensl ifl calciuml levelsl dropl sharply?
Answer:
Skeletall musclel andl cardiacl musclel willl experiencel strong,l uncontrolledl contractionsl thatl
canl bel fatal
Q:l Whatl happensl ifl calciuml levelsl arel tool high?
2025/l 2026l Update)l Essentiall Biologyl IIl
W/Labl |l Questionsl &l Answers|l Gradel A|l
100%l Correctl (Verifiedl Solutions)-l
Portagel Learning
Q:l Evaporativel coolingl inl thel forml ofl sweatingl isl thel mostl efficientl methodl tol
reducel bodyl temperaturel andl isl oftenl thel firstl linel ofl interventionl usedl tol assistl al
patientl inl reducingl bodyl temperature.l Whatl arel behaviorall changesl onel canl makel tol
returnl thel bodyl tol itsl optimall setl point?
Answer:
behaviorall changes,l suchl asl seekingl shadel orl takingl offl layersl ofl clothingl orl covering,l
arel alsol waysl tol increasel heatl lossl andl returnl thel bodyl temperaturel tol itsl setl pointl
range.
Q:l Calcitoninl isl al peptidel hormonel thatl isl manufacturedl andl releasedl byl thel
_________ofl thel thyroid.
Answer:
parafollicularl cells
Q:l Chemoreceptorsl sensel changesl inl eachl ofl thel followingl except:
a.l Bloodl oxygenl concentration
b.l Bloodl carbonl dioxidel concentration
c.l Bloodl phosphatel levels
d.l Bloodl pH
,Answer:
c
Q:l Whatl isl thel rolel ofl estrogenl duringl parturition?
Answer:
Itl increasesl thel sensitivityl ofl uterinel smoothl musclel tol facilitatel contraction.
Q:l Whichl ofl thel followingl statementsl isl TRUEl regardingl PTH?
a.l Itl directlyl increasesl bloodl calciuml levelsl byl stimulatingl thel workl ofl osteoclasts.
b.l Itl directlyl increasesl bloodl calciuml levelsl byl bindingl tol kidneyl tubules,l increasingl
thel reabsorptionl ofl calcium.
c.l Itl indirectlyl increasesl bloodl calciuml levelsl byl stimulatingl thel kidneysl tol promotel thel
activationl ofl Vitaminl D.
d.l Alll ofl thel above
Answer:
d
Q:l Explainl howl epinephrinel worksl tol increasel bloodl pressure.
Answer:
Epinephrinel isl al hormonel thatl targetsl thel heart,l bloodl vessels,l liver,l andl adiposel tissue.l
Bindingl tol heartl cellsl increasesl heartl ratel andl strokel volume,l therebyl increasingl bloodl
pressure.l Thel smoothl musclel ofl thel bloodl vessell wallsl isl stimulatedl tol constrict,l whichl
alsol contributesl tol anl increasel inl bloodl pressure
Q:l Thel bindingl ofl glucagonl tol ______l tissuel facilitatesl thel conversionl ofl storedl
glycogenl intol glucosel inl al processl calledl _________.
, Answer:
liver;l glycogenolysis
Q:l Explainl howl Angiotensinl IIl andl aldosteronel workl togetherl tol increasel bloodl
pressure.
Answer:
Angiotensinl IIl targetsl cellsl ofl thel adrenall cortex.l Thel cellsl ofl thel adrenall cortexl
respondl tol angiotensinl IIl byl increasingl thel secretionl ofl aldosterone,l whichl isl al steroidl
hormonel thatl targetsl cellsl ofl thel distall tubulesl andl collectingl ductsl tol increasel
reabsorptionl ofl sodiuml andl water.l Thisl contributesl tol anl increasel inl bloodl volume.l Thel
combinationl ofl bloodl vessell constrictionl (effectl ofl Angiotensinl II)l andl increasedl bloodl
volumel contributesl tol al risel inl bloodl pressure
Q:l Describel al heat-generatingl mechanisml usedl byl thel bodyl whenl al dropl inl bodyl
temperaturel isl detected.
Answer:
Whenl corel temperaturel drops,l skeletall musclesl arel stimulatedl tol movel tol producel
frictionl andl heatl throughl shivering.l Shiveringl isl al mechanisml thatl producesl andl
conservesl heat
Q:l Whatl happensl ifl calciuml levelsl dropl sharply?
Answer:
Skeletall musclel andl cardiacl musclel willl experiencel strong,l uncontrolledl contractionsl thatl
canl bel fatal
Q:l Whatl happensl ifl calciuml levelsl arel tool high?
