Test Bank for McCance & Huether’s Pathophysiology: The Biologic Basis for Disease in Adultsand Children 9th Edition by Julia Rogers

Test Bank for McCance
& Huether’s
Pathophysiology: The
Biologic Basis for Disease
in Adultsand Children
9th Edition by Julia
Rogers

,PATHO PHYSIOL
62




OGY9TH EDITIO 62




N MCCANCE
62




TEST BANK 62




LATEST REVISED
62

, TEST62BANK62FOR62PATHOPHYSIOLOGY629T
H62EDITION62MCCANCE62(ALL62CHAPTERS)

Chapter621:62Cellular62Biology


MULTIPLE62CHOICE

1. Which62component62of62the62cell62prodNuUceRsS IhNyGd TroBg. CenO Mperox ide 62(H2O2)62by62using6
2oxygen62to62remove62hydrogen62atoms62from62specific62substrates62in62an62oxidativ
e62reaction?
a. Lysosomes c. Ribosomes
b. Peroxisomes d.62 Oxyhydrosomes
ANS:62B
Peroxisomes62are62so62named62because62they62usually62contain62enzymes62that62use62oxy
gen62to62remove62hydrogen62atoms62from62specific62substrates62in62an62oxidative62reactio
n62that62produces62H2O2,62which62is62a62powerful62oxidant62and62potentially62destructive62
if62it62accumulates62or62escapes62from62peroxisomes.62Ribosomes62are62RNA-
protein62complexes62(nucleoproteins)62that62are62synthesized62in62the62nucleolus62and62se
creted62into62the62cytoplasm62through62pores62in62the62nuclear62envelope62called62nuclear
62pore62complexes.62Lysosomes62are62saclike62structures62that62originate62from62the62Golg
i62complex62and62contain62more62than624062digestive62enzymes62called62hydrolases,62whic
h62catalyze62bonds62in62proteins,62lipids,62nucleic62acids,62and62carbohydrates.62Oxyhydros
omes62are62involved62in62enzyme62production.

PTS:6 2 6 2 1 REF:62Page628

2. Which62statement62best62describes62the62cellular62function62of62metabolic62absorption?
a. Cells62can62produce62proteins. c. Cells62can62take62in62and62use62nutrients.
b. Cells62can62secrete62digestive62enzymes. d.6 2 Cells62can62synthesize62fats.
ANS:62C
In62metabolic62absorption,62all62cells62take62in62and62use62nutrients62and62other62substances
62from62their62surroundings.62The62remaining62options62are62not62inclusive62in62their62desc
riptions62of62cellular62metabolic62absorption.

PTS:6 2 6 2 1 REF:62Page622

3. Most62of62a62cell’s62genetic62information,62including62RNA62and62DNA,62is62contained62in62the:
a. Mitochondria c. Nucleolus
b. Ribosome d.6 2 6 2 Lysosome
ANS:62C
The62nucleus62contains62the62nucleolus,62a62small62dense62structure62composed62largely62
of62RNA,62most62of62the62cellular62DNA,62and62the62DNA-
binding62proteins,62such62as62the62histones,62which62regulate62its62activity.62The62other62op
tions62do62not62contain62most62of62a62cell’s62genetic62information.

PTS:6 2 6 2 1 REF:62Page622

4. Which62cell62component62is62capable62of62cellular62autodigestion62when62it62is62released6
ANS:62
D

, TEST62BANK62FOR62PATHOPHYSIOLOGY629T
H62EDITION62MCCANCE62(ALL62CHAPTERS)
2during62cell62injury?
a. Ribosome c. Smooth62endoplasmic62reticulum
b. Golgi62complex d.62Lysosomes




ANS:62
D