Examl 2:l BIOSl 251l BIOS251l Latestl

Examl 2:l BIOSl 251/l BIOS251l (Latestl

2026/l 2027l Update)l Anatomyl andl Physiologyl Il withl Labl Guide|l Q/Al |l Gradel A|l 100%l Correctl (Verifiedl Answers)l -Chamberlain

Q:l Gapl Junctions

Answer:

formsl al connectionl betweenl twol cells

Q:l Endocytosis

Answer:

Thel processl byl whichl cellsl absorbl moleculesl byl engulfingl them.

Q:l Exocytosis

Answer:

Thel processl byl whichl cellsl releasel substancesl storedl inl vesiclesl outsidel thel cell.

Q:l Restingl Membranel Potential

Answer:

Thel electricall chargel differencel acrossl thel plasmal membranel ofl al restingl cell,l typicallyl aroundl -70mV.

Q:l Simplel Diffusion 1 / 3

Answer:

Thel passivel movementl ofl moleculesl froml anl areal ofl higherl concentrationl tol anl areal ofl lowerl concentration.

Q:l Facilitatedl Diffusion

Answer:

Thel passivel transportl ofl moleculesl acrossl al celll membranel withl thel helpl ofl transportl proteins.

Q:l Osmosis

Answer:

Thel movementl ofl waterl acrossl al semipermeablel membranel froml anl areal ofl lowl solutel concentrationl tol anl areal ofl highl solutel concentration.

Q:l Activel Transport

Answer:

Thel movementl ofl moleculesl acrossl al celll membranel againstl theirl concentrationl gradient,l requiringl energy.

Q:l Bulkl Transport

Answer:

Thel transportationl ofl largel moleculesl orl particlesl acrossl thel celll membranel usingl vesicles.

Q:l Sodium-Potassiuml Pump

Answer: 2 / 3

Movesl 3l sodiuml ionsl outl &l 2l potassiuml ionsl intol cell,l creatingl al morel negativel chargel inl thel cell.l Musclel andl Nervousl systeml relyl onl it.

Q:l Depolarization

Answer:

Na+l channelsl openl andl Na+l entersl thel cell,l makingl itl morel positive.

Q:l Repolarization

Answer:

Na+l channelsl close,l K+l channelsl open,l andl K+l rushesl outl ofl thel cell.l Afterl depolarizationl &l repolarization,l thel sodium-potassiuml pumpl helpsl thel celll returnl tol RMP.

Q:l Organelles

Answer:

Tiny,l organizedl structuresl thatl performl functionsl withinl ourl cells.l Membranousl organellesl arel coveredl withl al lipidl membrane,l includingl thel Nucleus,l mitochondrion,l lysosomes,l peroxisomes,l Endoplasmicl reticuluml (smoothl &l rough),l Golgil complex.l Non- membranousl organellesl arel generallyl madel ofl proteinsl andl notl coveredl withl lipids.

Q:l Nucleolus

Answer:

Darkl regionl atl thel centerl ofl thel nucleusl madel ofl chromatinl (thread-likel strandsl ofl DNA).

Q:l Inclusionl Bodies

Answer:

Anl abnormall structurel floatingl withinl thel cytoplasm.

• / 3