TEST BANK- Huether and McCance's Understanding Pathophysiology 2nd Canadian Edition ( Sue E. Huether, 2022) All chapters | latest edition 2024 | COMPLETE SOLUTION.

nursing .ohealth .oca




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,Chapter .o01: .oCellular .oBiology


MULTIPLE .oCHOICE

1. A .ostudent .ois .oobserving .oa .ocell .ounder .othe .omicroscope. .oIt .ois .oobserved .oto .ohave
.osupercoiled .oDNA .owith .ohistones. .oWhich .oof .othe .ofollowing .owould .oalso .obe
.oobserved .oby .othe .ostudent? .oa. .oA .osingle .ocircular .ochromosome
b. A .onucleus
c. Free-floating .onuclear .omaterial
d. No .oorganelles



ANS: .oB
The .ocell .odescribed .ois .oa .oeukaryotic .ocell, .oso .oit .ohas .ohistones .oand .oa .osupercoiled .oDNA
.owithin .oits .onucleus; .othus, .othe .onucleus .oshould .obe .oobserved. .oA .osingle .ocircular
.ochromosome .ocalled .oa .oprokaryote .ocontains .ofree-floating .onuclear .omaterial .obut .ohas .ono
.oorganelles.


REF: .op. .o2

2. A .onurse .ois .oinstructing .othe .ostaff .oabout .ocellular .ofunctions. .oWhich .ocellular .ofunction
.ois .othe .onurse .odescribing .owhen .oan .oisolated .ocell .oabsorbs .ooxygen .oand .ouses .oit .oto
.otransform .onutrients .oto .oenergy?
a. Metabolic .oabsorption
b. Communication
c. Secretion
d. Respiration




ANS: .oD NURSINGTB.COM
The .ocell’s .oability .oto .oabsorb .ooxygen .ois .oreferred .oto .oas .orespiration .owhile .oits .ocommunication
.oability .oinvolves .omaintenance .oof .oa .osteady .odynamic .ostate, .ometabolic .oabsorption .oprovides
.onutrition, .oand .osecretion .oallows .ofor .othe .osynthesizing .oof .onew .osubstances.


REF: .op. .o2

3. A .oeukaryotic .ocell .ois .oundergoing .oDNA .oreplication. .oIn .owhich .oregion .oof .othe .ocell
.owould .omost .oof .othe .ogenetic .oinformation .obe .ocontained?
a. Mitochondria




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, b. Ribosome
c. Nucleolus
d. Nucleus .oCytoplasm



ANS: .oC
The .oregion .oof .othe .ocell .othat .ocontains .ogenetic .omaterial, .oincluding .oa .olarge .oamount .oof
.oribonucleic .oacid, .omost .oof .othe .oDNA, .oand .oDNA-binding .oproteins, .ois .othe .onucleolus,
.owhich .ois .olocated .owithin .othe .ocell’s .onucleus. .oMitochondria .ois .oassociated .owith .ocellular
.orespiration, .owhile .oribosomes .oare .oinvolved .owith .oprotein .omanufacturing. .oCytoplasm .ois
.oa .ofluid .ofilling .othat .ois .oa .ocomponent .oof .othe . o cell.


REF: .op. .o2

4. Which .oof .othe .ofollowing .ocan .oremove .oproteins .oattached .oto .othe .ocell’s .obilayer .oby .odissolving .othe
.olayer
itself?
a. Peripheral .omembrane .oproteins
b. Integral .omembrane .oproteins
c. Glycoproteins
d. Cell .oadhesion .omolecules



ANS: .oB
Proteins .odirectly .oattached .oto .othe .omembrane .obilayer .ocan .obe .oremoved .oby .othe .oaction
.oof .ointegral .omembrane .oproteins .othat .odissolve .othe .obilayer. .oPeripheral .omembrane
.oproteins .oreside .oat .othe .osurface .owhile .ocell .oadhesion .omolecules .oare .oon .othe .ooutside .oof
.othe .omembrane. .oGlycoprotein .omarks .ocells .oand .odoes .onot .ofloat.


REF: .op. .o7

5. Which .oof .othe .ofollowing .ocan .obind .oto .oplasma .omembrane .oreceptors?
a. Oxygen
b. Ribosomes
c. Amphipathic .olipids
d. Ligands



ANS: .oD
Ligands .oare .othe .oonly .ospecific .omolecules .othat .ocan .obind .owith .oreceptors .oon .othe .ocell .omembran

REF: .op. .o9

6. A .onurse .ois .oreviewing .oa .oreport .ofrom .oa .opatient .owith .ometastatic .ocancer. .oWhat .oalternation .oin .othe
extracellular .omatrix .owould .osupport .othe .odiagnosis .oof .ometastatic .ocancer?a.
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, Decreased .ofibronectin
b. Increased .ocollagen
c. Decreased .oelastin
d. Increased .oglycoproteins



ANS: .oA
Only .oa .oreduced .oamount .oof .ofibronectin .ois .ofound .oin .osome .otypes .oof .ocancerous .ocells,
.oallowing .othem .oto .otravel .oor .ometastasize.


REF: .op. .o10

7. Which .oform .oof .ocell .ocommunication .ois .oused .oto .orelate .oto .oother .ocells .oin .odirect .ophysical
.ocontact? .oa. .oCell .ojunction
b. Gap .ojunction
c. Desmosome
d. Tight .ojunction



ANS: .oA
Cell .ojunctions .ohold .ocells .otogether .oand .opermit .omolecules .oto .opass .ofrom .ocell .oto .ocell.
Gap .ojunctions .oallow .ofor .ocellular .ocommunication .obetween .ocells. .oNeither .odesmosomes .onor .otigh
.ojunctions .oare .oassociated .owith .ocellular .ocommunication.


REF: .op. .o11

8. Pancreatic .obeta .ocells .osecrete .oinsulin, .owhich .oinhibits .osecretion .oof .oglucagon .ofrom
.oneighboring .oalpha .ocells. .oThis .oaction .ois .oan .oexample .oof .owhich .oof .othe .ofollowing
.osignaling .otypes? .oa. .oParacrine
b. Autocrine
c. Neurohormonal
d. Hormonal


ANS: .oAParacrine .osignaling .oinvolves .othe .orelease .oof .olocal .ochemical .omediators .othat .oare .oquickly .otake
.oup, .odestroyed, .oor .oimmobilized, .oas .oin .othe .ocase .oof .oinsulin .oand .othe .oinhibition .oof .othe .osecretion .oof
.oglucagon. .oNone .oof .othe .oother .ooptions .oinvolve .osignaling .othat .ois .oassociated .owith .oa .olocal .ochemical
.omediator .olike .oinsulin.


REF: .op. .o12

9. In .ocellular .ometabolism, .oeach .oenzyme .ohas .oa .ohigh .oaffinity .ofor .oa:
a. solute.
b. substrate.
c. receptor.
d. ribosome.




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