Exam 2: BIOS 251/ BIOS251 (NEW 2026/ 2027 Update) Anatomy and Physiology I with Lab Review| Questions & Answers | Grade A| 100% Correct (Verified Solutions)-Chamberlain

Examl 2:l BIOSl 251/l BIOS251l (NEWl
2026/l 2027l Update)l Anatomyl andl
Physiologyl Il withl Labl Review|l Questionsl
&l Answersl |l Gradel A|l 100%l Correctl
(Verifiedl Solutions)-Chamberlain

QUESTION
Restingl Membranel Potential

Answer:
-70mV



QUESTION
sodium-potassiuml pump

Answer:
-l movesl 3l sodiuml ionsl outl andl 2l potassiuml ionsl intol cell
-l createsl morel negativel chargel inl thel cell
-l musclel andl nervousl systeml relyl onl it



QUESTION
depolarization

Answer:
Thel processl duringl thel actionl potentiall whenl sodiuml isl rushingl intol thel celll causingl
thel interiorl tol becomel morel positive.



QUESTION
repolarization

,Answer:
Returnl ofl thel celll tol restingl state,l causedl byl reentryl ofl potassiuml intol thel celll whilel
sodiuml exitsl thel cell.



QUESTION
organelles

Answer:
-l tiny,l organizedl structuresl thatl performl functionsl withinl ourl cellsl
-l "littlel organ"



QUESTION
nucleus

Answer:
geneticl controll ofl thel cell;l directsl proteinl synthesis,l storagel ofl DNA,l sitel ofl DNAl
replicationl andl transcription



QUESTION
roughl ER

Answer:
sitel ofl proteinl synthesisl andl lipidl synthesis



QUESTION
smoothl ER

Answer:
sitel ofl lipidl syntehsis



QUESTION

, ribosomes

Answer:
synthesizesl proteins



QUESTION
golgil complex

Answer:
synthesizesl sugars,l modifiesl proteins,l createsl vesiclesl andl lysosomes



QUESTION
lysosomes

Answer:
containl enzymesl usedl forl digestion,l metabolism,l programmedl celll death



QUESTION
peroxisomes

Answer:
containsl enzymesl forl oxidizingl fattyl acids



QUESTION
proteasomes

Answer:
degradel unnecessaryl orl damagedl proteins



QUESTION
mitochondria