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TEST BANK FOR: MCCANCE: PATHOPHYSIOLOGY THE BIOLOGIC BASIS FOR DISEASE IN ADULTS AND CHILDREN 8TH EDITION BY KATHRYN L MCCANCE, SUE E HUETHER ISBN-10;0275972488/ISBN-13;978- 0275972486

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TEST BANK FOR: MCCANCE: PATHOPHYSIOLOGY THE BIOLOGIC BASIS FOR DISEASE IN ADULTS AND CHILDREN 8TH EDITION BY KATHRYN L MCCANCE, SUE E HUETHER ISBN-10;0275972488/ISBN-13;978- Chapter 01: Cellular Biology MULTIPLE CHOICE 1. Which statement best describes the cellular function of metabolic absorption? a. Cells can produce proteins. b. Cells can secrete digestive enzymes. c. Cells can take in and use nutrients. d. Cells can synthesize fats. ANS: C In metabolic absorption, all cells take in and use nutrients and other substances from their surroundings. The remaining options are not inclusive in their descriptions of cellular metabolic absorption. PTS: 1 DIF: Cognitive Level: Remembering 2. Where is most of a cell’s genetic information, including RNA and DNA, contained? a. Mitochondria b. Ribosome c. Nucleolus d. Lysosome ANS: C The nucleus contains the nucleolus, a small dense structure composed largely of RNA, most of the cellular DNA, and the DNA-binding proteins, such as the histones, which regulate its activity. The mitochondria are responsible for cellular respiration and energy production. Ribosomes’ chief function is to provide sites for cellular protein synthesis. Lysosomes function as the intracellular digestive system. PTS: 1 DIF: Cognitive Level: Remembering 3. Which component of the cell produces hydrogen peroxide (H2O2) by using oxygen to remove hydrogen atoms from specific substrates in an oxidative reaction? a. Lysosomes b. Peroxisomes c. Ribosomes d. Endosome ANS: B Peroxisomes are so named because they usually contain enzymes that use oxygen to remove hydrogen atoms from specific substrates in an oxidative reaction that produces H2O2, which is a powerful oxidant and potentially destructive if it accumulates or escapes from peroxisomes. Ribosomes are RNA-protein complexes (nucleoproteins) that are synthesized in the nucleolus and secreted into the cytoplasm through pores in the nuclear envelope called nuclear pore complexes. Lysosomes are saclike structures that originate from the Golgi complex and contain more than 40 digestive enzymes called hydrolases, which catalyze bonds in proteins, lipids, nucleic acids, and carbohydrates. An endosome is a vesical that has been pinched off from the cellular membrane. PTS: 1 DIF: Cognitive Level: Remembering 4. Which cell component is capable of cellular autodigestion when it is released during cell injury? a. Ribosome b. Golgi complex c. Smooth endoplasmic reticulum d. Lysosomes ANS: D The lysosomal membrane acts as a protective shield between the powerful digestive enzymes within the lysosome and the cytoplasm, preventing their leakage into the cytoplasmic matrix. Disruption of the membrane by various treatments or cellular injury leads to a release of the lysosomal enzymes, which can then react with their specific substrates, causing cellular selfdigestion. The chief function of a ribosome is to provide sites for cellular protein synthesis. The Golgi complex is a network of flattened, smooth vesicles and membranes often located near the cell nucleus. The smooth endoplasmic reticulum is involved in steroid hormone production and removing toxic substances from the cell. PTS: 1 DIF: Cognitive Level: Remembering 5. Which cAMP-mediated response is related to antidiuretic hormone? a. Increased heart rate and force of contraction b. Secretion of cortisol c. Increased retention of water d. Breakdown of fat ANS: C Antidiuretic hormone leads to increased retention of water in the body. Epinephrine causes increases in heart rate and force of contraction. Increased cortisol secretion is due to ACTH. Breakdown of fat is due to glucagon. PTS: 1 DIF: Cognitive Level: Remembering 6. During which phase of the cell cycle is DNA synthesized? a. G1 b. S c. G2 d. M

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test bank for mccance pathophysiology the biol
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TEST BANK FOR: MCCANCE:
PATHOPHYSIOLOGY THE BIOLOGIC BASIS
FOR DISEASE IN ADULTS AND CHILDREN
8TH EDITION BY KATHRYN L MCCANCE, SUE
E HUETHER ISBN-10; 0275972488/ISBN-13; 978-
0275972486

,
,Chapter 01: Cellular Biology
q q q

MULTIPLEqCHOICE

1. Whichqstatementqbestqdescribesqtheqcellularqfunctionqofqmetabolicqabsorption?
a. Cellsqcanqproduceqproteins.
b. Cellsqcanqsecreteqdigestiveqenzymes.
c. Cellsqcanqtakeqinqandquseqnutrients.
d. Cellsqcanqsynthesizeqfats.

ANS:q C
Inqmetabolicqabsorption,qallqcellsqtakeqinqandquseqnutrientsqandqotherqsubstancesqfromqtheirqsurrou
ndings.qTheqremainingqoptionsqareqnotqinclusiveqinqtheirqdescriptionsqofqcellularqmetabolicqabsorpt
ion.

PTS:qqq 1 DIF: CognitiveqLevel:qRemembering

2. Whereqisqmostqofqaqcell’sqgeneticqinformation,qincludingqRNAqandqDNA,qcontained?
a. Mitochondria
b. Ribosome
c. Nucleolus
d. Lysosome

ANS:q C
Theqnucleusqcontainsqtheqnucleolus,qaqsmallqdenseqstructureqcomposedqlargelyqofqRNA,qmostqofqt
heqcellularqDNA,qandqtheqDNA-
bindingqproteins,qsuchqasqtheqhistones,qwhichqregulateqitsqactivity.qTheqmitochondriaqareqrespons
ibleqforqcellularqrespirationqandqenergyqproduction.
Ribosomes’qchiefqfunctionqisqtoqprovideqsitesqforqcellularqproteinqsynthesis.qLysosomesqfunctionqa
sqtheqintracellularqdigestiveqsystem.

PTS:qqq 1 DIF: CognitiveqLevel:qRemembering

3. Whichqcomponentqofqtheqcellqproducesqhydrogenqperoxideq(H2O2)qbyqusingqoxygenqtoqremoveqh
ydrogenqatomsqfromqspecificqsubstratesqinqanqoxidativeqreaction?
a. Lysosomes
b. Peroxisomes
c. Ribosomes
d. Endosome

ANS:q B

, Peroxisomesqareqsoqnamedqbecauseqtheyqusuallyqcontainqenzymesqthatquseqoxygenqtoqremoveqhyd
rogenqatomsqfromqspecificqsubstratesqinqanqoxidativeqreactionqthatqproducesqH2O2,qwhichqisqaqpowe
rfulqoxidantqandqpotentiallyqdestructiveqifqitqaccumulatesqorqescapesqfromqperoxisomes.
RibosomesqareqRNA-
proteinqcomplexesq(nucleoproteins)qthatqareqsynthesizedqinqtheqnucleolusqandqsecretedqintoqtheqc
ytoplasmqthroughqporesqinqtheqnuclearqenvelopeqcalledqnuclearqporeqcomplexes.qLysosomesqareqs
aclikeqstructuresqthatqoriginateqfromqtheqGolgiqcomplexqandqcontainqmoreqthanq40qdigestiveqenzy
mesqcalledqhydrolases,qwhichqcatalyzeqbondsqinqproteins,qlipids,qnucleicqacids,qandqcarbohydrate
s.qAnqendosomeqisqaqvesicalqthatqhasqbeenqpinchedqoffqfromqtheqcellularqmembrane.

PTS:qqq 1 DIF: CognitiveqLevel:qRemembering

4. Whichqcellqcomponentqisqcapableqofqcellularqautodigestionqwhenqitqisqreleasedqduringqcellqinjury?
a. Ribosome
b. Golgiqcomplex
c. Smoothqendoplasmicqreticulum
d. Lysosomes

ANS:q D
Theqlysosomalqmembraneqactsqasqaqprotectiveqshieldqbetweenqtheqpowerfulqdigestiveqenzymesqwi
thinqtheqlysosomeqandqtheqcytoplasm,qpreventingqtheirqleakageqintoqtheqcytoplasmicqmatrix.qDisr
uptionqofqtheqmembraneqbyqvariousqtreatmentsqorqcellularqinjuryqleadsqtoqaqreleaseqofqtheqlysosom
alqenzymes,qwhichqcanqthenqreactqwithqtheirqspecificqsubstrates,qcausingqcellularqself-
qdigestion.qTheqchiefqfunctionqofqaqribosomeqisqtoqprovideqsitesqforqcellularqproteinqsynthesis.qTheq

Golgiqcomplexqisqaqnetworkqofqflattened,qsmoothqvesiclesqandqmembranesqoftenqlocatedqnearqtheqc
ellqnucleus.qTheqsmoothqendoplasmicqreticulumqisqinvolvedqinqsteroidqhormoneqproductionqandqre
movingqtoxicqsubstancesqfromqtheqcell.

PTS:qqq 1 DIF: CognitiveqLevel:qRemembering

5. WhichqcAMP-mediatedqresponseqisqrelatedqtoqantidiureticqhormone?
a. Increasedqheartqrateqandqforceqofqcontraction
b. Secretionqofqcortisol
c. Increasedqretentionqofqwater
d. Breakdownqofqfat

ANS:q C
Antidiureticqhormoneqleadsqtoqincreasedqretentionqofqwaterqinqtheqbody.qEpinephrineqcausesqi
ncreasesqinqheartqrateqandqforceqofqcontraction.qIncreasedqcortisolqsecretionqisqdueqtoqACTH.qB
reakdownqofqfatqisqdueqtoqglucagon.

PTS:qqq 1 DIF:q CognitiveqLevel:qRemembering

6. DuringqwhichqphaseqofqtheqcellqcycleqisqDNAqsynthesized?
a. G1
b. S
c. G2
d. M

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