Understanding Pathophysiology 7th edition by Huether, McCance Test Bank Latest Updated Examination Study Guide 2022

Understanding Pathophysiology 7th edition by Huether, McCance Test Bank
Latest Updated Examination Study Guide 2022

Understanding8 0 Pathophysiology8 0 7th8 0 edition8 0 by8 0 Huether,8 0 McCance8 0 Test8 0
Bank


Chapter801.80Cellular80Biology

MULTIPLE80CHOICE

1. A80student80is80observing80a80cell80under80the80microscope.80It80is80observed80to80have80sup
ercoiled80DNA80with80histones.80Which80of80the80following80would80also80be80observed80by8
0the80student?



a. A80single80circular80chromosome
b. A80nucleus
c. Free-floating80nuclear80material
d. No80organelles


ANS:80B

The80cell80described80is80a80eukaryotic80cell,80so80it80has80histones80and80a80supercoiled80DNA80
within80its80nucleus;80thus,80the80nucleus80should80be80observed.

A80single80circular80chromosome80is80characteristic80of80prokaryotic80cells,80which80do80not80have80h
istones.

Free-
floating80nuclear80material80describes80a80prokaryotic80cell,80which80would80not80have80a80distin
ct80nucleus.

Eukaryotic80cells80have80membrane80bounded80cellular80components80called80organelles.80No80o
rganelles80describes80a80prokaryotic80cell.

2. A80nurse80is80instructing80the80staff80about80cellular80functions.80Which80cellular80function8
0is80the80nurse80describing80when80an80isolated80cell80absorbs80oxygen80and80uses80it80to80tran

sform80nutrients80to80energy?

,a. Metabolic80absorption
b. Communication
c. Secretion
d. Respiration

,ANS:80D

The80ability80of80the80cell80to80absorb80oxygen80refers80to80the80cells80function80of80respiration.

The80ability80of80the80cell80to80function80within80a80society80of80cells80refers80to80its80function80
of80communication.

The80ability80of80the80cell80to80take80in80nutrients80refers80to80the80cells80function80of80metabolic80abs
orption.

The80ability80of80the80cell80to80synthesize80new80substances80and80secrete80these80elsewhere80refers80t
o80the80cells80function80of80secretion.

3. A80eukaryotic80cell80is80undergoing80DNA80replication.80In80which80region80of80the80cell80w
ould80most80of80the80genetic80information80be80contained?

a. Mitochondria
b. Ribosome
c. Nucleolus
d. Nucleus


ANS:80C

The80region80of80the80cell80that80contains80genetic80material,80including80a80large80amount80of80r
ibonucleic80acid,80most80of80the80DNA,80and80DNA-binding80proteins,80is80the80nucleolus.

The80mitochondria80is80the80site80of80cellular80respiration.

The80ribosomes80are80involved80in80manufacturing80of80proteins80within80the80cell.

The80nucleus80contains80the80nucleolus,80and80it80is80the80nucleolus80that80contains80genetic80material
.

4. The80fluid80mosaic80model80for80biologic80membranes80describes80membrane80behavior.80Ac
cording80to80this80model,80which80of80the80following80float80singly80or80as80aggregates80in80the8
0fluid80lipid80bilayer?


a. Peripheral80membrane80proteins
b. Integral80membrane80proteins

, c. Glycoproteins
d. Cell80adhesion80molecules


ANS:80B

Integral80membrane80proteins80float80freely80in80the80fluid80lipid80bilayer.

Peripheral80membrane80proteins80are80not80embedded80in80the80layer,80but80reside80at80the80surf

ace.80Glycoproteins80act80as80cell80surface80markers.

Cell80adhesion80molecules80are80on80the80outside80of80the80membrane80and80allow80cells80to80hook80t
ogether.

5. Which80of80the80following80can80bind80to80plasma80membrane80receptors?

a. Oxygen
b. Ribosomes
c. Amphipathic80lipids
d. Ligands


ANS:80D

Ligands80are80specific80molecules80that80can80bind80with80receptors80on80the80cell80mem

brane.80Oxygen80moves80by80diffusion;80it80does80not80bind80to80receptors.

Ribosomes80make80proteins80and80are80not80involved80in80

binding.80Amphipathic80lipids80are80a80portion80of80the80c

ell80membrane.

6. A80nurse80is80reviewing80a80report80from80a80patient80with80metastatic80cancer.80What80fi
nding80would80support80the80diagnosis80of80metastatic80cancer?80Alterations80in80extracellu
lar80matrix80that80include:

a. Decreased80fibronectin
b. Increased80collagen