Answerdone.com
TEST BANK FOR
mj mj
Porth's Essentials of Pathophysiology 5th edition
mj mj mj mj mj
by Tommie L Norris
mj mj mj
,Answerdone.com
1. Chapter 1 mj
Although the basic structure of the cell plasma membrane is formed by a lipid bilayer, mo
mj mj mj mj mj mj mj mj mj mj mj mj mj mj mj
st ofthe specific membrane functions are carried out by:
mj m
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A) Bound and transmembrane proteins
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B) Complex, long carbohydrate chains mj mj mj
C) Surface antigens and hormone receptors
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D) A gating system of selective ion channels
mj mj mj mj mj mj
Ans: A mj
Feedback:
The functions of plasma membrane depend on the presence of proteins that are bound in the l
mj mj mj mj mj mj mj mj mj mj mj mj mj mj mj mj
ipidbilayer and some that have the ability to pass freely into and out of the cell.
m
j mj mj mj mj mj mj mj mj mj mj mj mj mj mj mj
Carbohydrate chains form a cell coat that surrounds the membrane and that contain surfac
mj mj mj mj mj mj mj mj mj mj mj mj mj
e antigens and surface hormone receptors. Some ion channels are gated and open only wh
mj mj mj mj mj mj mj mj mj mj mj mj mj mj
en themembrane potential changes significantly.
mj m
j mj mj mj
2. Which describes the function of the nucleus?
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A) It is basically the site of protein synthesis in the body.
mj mj mj mj mj mj mj mj mj mj
B) It contains the genetic code for the individual.
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C) It is the transformer of cellular energy.
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D) It initiates the process of aerobic metabolism.
mj mj mj mj mj mj
Ans: B mj
Feedback:
The nucleus contains DNA, which contains the genetic code that contains the information tha
mj mj mj mj mj mj mj mj mj mj mj mj mj
t controls cells. Ribosomes synthesize protein. Mitochondria transform organic compounds int
mj mj mj mj mj mj mj mj mj mj
o cellular energy. Mitochondria require oxygen for aerobic metabolism, using hydrogen and c
mj mj mj mj mj mj mj mj mj mj mj mj
arbon combined with oxygen molecules to form carbon dioxide and water as energy is releas
mj mj mj mj mj mj mj mj mj mj mj mj mj mj
ed.
3. Which of the following aspects of the function of the nucleus is performed by riboso
mj mj mj mj mj mj mj mj mj mj mj mj mj mj
malRNA (rRNA)?
m
j mj
,Answerdone.com
A) Copying and carrying DNA instructions for protein synthesis
mj mj mj mj mj mj mj
B) Carrying amino acids to the site of protein synthesis
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C) Providing the site where protein synthesis occurs
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D) Regulating and controlling protein synthesis mj mj mj mj
Ans: C mj
Feedback:
There are three types of ribonucleic acid (messenger RNA, ribosomal RNA, and transfer R
mj mj mj mj mj mj mj mj mj mj mj mj mj
NA)that move to the cytoplasm and carry out the actual synthesis of proteins.
m
j mj mj mj mj mj mj mj mj mj mj mj mj
Messenger RNA (mRNA) copies and carries the DNA instructions for protein synthesis to
mj mj mj mj mj mj mj mj mj mj mj mj m
thecytoplasm; ribosomal RNA (rRNA) is the site of protein synthesis; and transfer RNA (t
j m
j mj mj mj mj mj mj mj mj mj mj mj mj mj
RNA)transports amino acids to the site of protein synthesis for incorporation into the prote
m
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in being synthesized.
mj mj
4. Which accurately explains the functions of the organelles lysosomes? They:
mj mj mj mj mj mj mj mj mj
A) Are sacs filled with enzymes that breakdown and remove foreign substances and w
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orn-out cell parts
m
j mj mj
B) Function in association with the endoplasmic reticulum to modify protein end produ
mj mj mj mj mj mj mj mj mj mj mj
ctsand package them into secretory granules or vesicles
m
j mj mj mj mj mj mj mj
C) Are small particles of nucleoproteins that are involved in the synthesis of proteins t
mj mj mj mj mj mj mj mj mj mj mj mj mj
hatremain in the cell as cytoplasmic structural or functional elements
m
j mj mj mj mj mj mj mj mj mj
D) Are a dynamic system of interconnected membranous tubes that functions as a tubu
mj mj mj mj mj mj mj mj mj mj mj mj
larcommunication system for transporting various substances from one part of the cell to a
m
j mj mj mj mj mj mj mj mj mj mj mj mj mj
nother
Ans: A mj
Feedback:
Lysosomes are sacs that are filled with hydrolytic enzymes that aid in the processing and re
mj mj mj mj mj mj mj mj mj mj mj mj mj mj mj
moval of unwanted substances within the cytoplasm. The Golgi apparatus functions in associ
mj mj mj mj mj mj mj mj mj mj mj mj
ation with the endoplasmic reticulum to modify and package substances in preparation forsec
mj mj mj mj mj mj mj mj mj mj mj mj m
j
retion, whereas ribosomes are small particles of nucleoproteins that are involved in the synth
mj mj mj mj mj mj mj mj mj mj mj mj mj
esis of proteins. The ER is a tubular communication system for transporting various substan
mj mj mj mj mj mj mj mj mj mj mj mj mj
ces from one part of the cell to another.
mj mj mj mj mj mj mj mj
, Answerdone.com
5. Impairment in the function of peroxisomes would result in:
mj mj mj mj mj mj mj mj
A) Inadequate sites for protein synthesis
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B) An inability to transport cellular products across the cell membrane
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C) Insufficient energy production within a cell
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D) Accumulation of free radicals in the cytoplasm mj mj mj mj mj mj
Ans: D mj
Feedback:
Peroxisomes function in the control of free radicals; unless degraded, these highly unsta
mj mj mj mj mj mj mj mj mj mj mj mj
blechemical compounds damage other cytoplasmic molecules. Peroxisomes do not direc
m
j mj mj mj mj mj mj mj mj mj
tly contribute to energy production, protein synthesis, or transport of cellular secretions.
mj mj mj mj mj mj mj mj mj mj mj
6. Although energy is not made in mitochondria, they are known as the ―power plants
mj mj mj mj mj mj mj mj mj mj mj mj mj
‖ ofthe cell because they:
mj m
j mj mj mj
A) Contain RNA for protein synthesis
mj mj mj mj
B) Utilize glycolysis for oxidative energy
mj mj mj mj
C) Extract energy from organic compounds
mj mj mj mj
D) Store calcium bonds for muscle contractions
mj mj mj mj mj
Ans: C mj
Feedback:
Mitochondria contain the enzymes needed for transforming organic compounds into energy t
mj mj mj mj mj mj mj mj mj mj mj
hatis easily accessible to the cell. Mitochondria contain their own DNA. Glycolysis is anaer
m
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obic metabolism and unrelated to oxidative energy. Mitochondria store phosphate bonds (suc
mj mj mj mj mj mj mj mj mj mj mj
h as in ATP) to power cellular functions.
mj mj mj mj mj mj mj
7. Semen analysis indicates that the client's sperm have decreased motility. Which of
mj mj mj mj mj mj mj mj mj mj mj mj
thefollowing cellular components may be defective within the client's sperm?
m
j mj mj mj mj mj mj mj mj mj
A) Ribosomes
B) Microtubules
C) Mitochondria
D) Microfilaments
TEST BANK FOR
mj mj
Porth's Essentials of Pathophysiology 5th edition
mj mj mj mj mj
by Tommie L Norris
mj mj mj
,Answerdone.com
1. Chapter 1 mj
Although the basic structure of the cell plasma membrane is formed by a lipid bilayer, mo
mj mj mj mj mj mj mj mj mj mj mj mj mj mj mj
st ofthe specific membrane functions are carried out by:
mj m
j mj mj mj mj mj mj mj
A) Bound and transmembrane proteins
mj mj mj
B) Complex, long carbohydrate chains mj mj mj
C) Surface antigens and hormone receptors
mj mj mj mj
D) A gating system of selective ion channels
mj mj mj mj mj mj
Ans: A mj
Feedback:
The functions of plasma membrane depend on the presence of proteins that are bound in the l
mj mj mj mj mj mj mj mj mj mj mj mj mj mj mj mj
ipidbilayer and some that have the ability to pass freely into and out of the cell.
m
j mj mj mj mj mj mj mj mj mj mj mj mj mj mj mj
Carbohydrate chains form a cell coat that surrounds the membrane and that contain surfac
mj mj mj mj mj mj mj mj mj mj mj mj mj
e antigens and surface hormone receptors. Some ion channels are gated and open only wh
mj mj mj mj mj mj mj mj mj mj mj mj mj mj
en themembrane potential changes significantly.
mj m
j mj mj mj
2. Which describes the function of the nucleus?
mj mj mj mj mj mj
A) It is basically the site of protein synthesis in the body.
mj mj mj mj mj mj mj mj mj mj
B) It contains the genetic code for the individual.
mj mj mj mj mj mj mj
C) It is the transformer of cellular energy.
mj mj mj mj mj mj
D) It initiates the process of aerobic metabolism.
mj mj mj mj mj mj
Ans: B mj
Feedback:
The nucleus contains DNA, which contains the genetic code that contains the information tha
mj mj mj mj mj mj mj mj mj mj mj mj mj
t controls cells. Ribosomes synthesize protein. Mitochondria transform organic compounds int
mj mj mj mj mj mj mj mj mj mj
o cellular energy. Mitochondria require oxygen for aerobic metabolism, using hydrogen and c
mj mj mj mj mj mj mj mj mj mj mj mj
arbon combined with oxygen molecules to form carbon dioxide and water as energy is releas
mj mj mj mj mj mj mj mj mj mj mj mj mj mj
ed.
3. Which of the following aspects of the function of the nucleus is performed by riboso
mj mj mj mj mj mj mj mj mj mj mj mj mj mj
malRNA (rRNA)?
m
j mj
,Answerdone.com
A) Copying and carrying DNA instructions for protein synthesis
mj mj mj mj mj mj mj
B) Carrying amino acids to the site of protein synthesis
mj mj mj mj mj mj mj mj
C) Providing the site where protein synthesis occurs
mj mj mj mj mj mj
D) Regulating and controlling protein synthesis mj mj mj mj
Ans: C mj
Feedback:
There are three types of ribonucleic acid (messenger RNA, ribosomal RNA, and transfer R
mj mj mj mj mj mj mj mj mj mj mj mj mj
NA)that move to the cytoplasm and carry out the actual synthesis of proteins.
m
j mj mj mj mj mj mj mj mj mj mj mj mj
Messenger RNA (mRNA) copies and carries the DNA instructions for protein synthesis to
mj mj mj mj mj mj mj mj mj mj mj mj m
thecytoplasm; ribosomal RNA (rRNA) is the site of protein synthesis; and transfer RNA (t
j m
j mj mj mj mj mj mj mj mj mj mj mj mj mj
RNA)transports amino acids to the site of protein synthesis for incorporation into the prote
m
j mj mj mj mj mj mj mj mj mj mj mj mj mj
in being synthesized.
mj mj
4. Which accurately explains the functions of the organelles lysosomes? They:
mj mj mj mj mj mj mj mj mj
A) Are sacs filled with enzymes that breakdown and remove foreign substances and w
mj mj mj mj mj mj mj mj mj mj mj mj
orn-out cell parts
m
j mj mj
B) Function in association with the endoplasmic reticulum to modify protein end produ
mj mj mj mj mj mj mj mj mj mj mj
ctsand package them into secretory granules or vesicles
m
j mj mj mj mj mj mj mj
C) Are small particles of nucleoproteins that are involved in the synthesis of proteins t
mj mj mj mj mj mj mj mj mj mj mj mj mj
hatremain in the cell as cytoplasmic structural or functional elements
m
j mj mj mj mj mj mj mj mj mj
D) Are a dynamic system of interconnected membranous tubes that functions as a tubu
mj mj mj mj mj mj mj mj mj mj mj mj
larcommunication system for transporting various substances from one part of the cell to a
m
j mj mj mj mj mj mj mj mj mj mj mj mj mj
nother
Ans: A mj
Feedback:
Lysosomes are sacs that are filled with hydrolytic enzymes that aid in the processing and re
mj mj mj mj mj mj mj mj mj mj mj mj mj mj mj
moval of unwanted substances within the cytoplasm. The Golgi apparatus functions in associ
mj mj mj mj mj mj mj mj mj mj mj mj
ation with the endoplasmic reticulum to modify and package substances in preparation forsec
mj mj mj mj mj mj mj mj mj mj mj mj m
j
retion, whereas ribosomes are small particles of nucleoproteins that are involved in the synth
mj mj mj mj mj mj mj mj mj mj mj mj mj
esis of proteins. The ER is a tubular communication system for transporting various substan
mj mj mj mj mj mj mj mj mj mj mj mj mj
ces from one part of the cell to another.
mj mj mj mj mj mj mj mj
, Answerdone.com
5. Impairment in the function of peroxisomes would result in:
mj mj mj mj mj mj mj mj
A) Inadequate sites for protein synthesis
mj mj mj mj
B) An inability to transport cellular products across the cell membrane
mj mj mj mj mj mj mj mj mj
C) Insufficient energy production within a cell
mj mj mj mj mj
D) Accumulation of free radicals in the cytoplasm mj mj mj mj mj mj
Ans: D mj
Feedback:
Peroxisomes function in the control of free radicals; unless degraded, these highly unsta
mj mj mj mj mj mj mj mj mj mj mj mj
blechemical compounds damage other cytoplasmic molecules. Peroxisomes do not direc
m
j mj mj mj mj mj mj mj mj mj
tly contribute to energy production, protein synthesis, or transport of cellular secretions.
mj mj mj mj mj mj mj mj mj mj mj
6. Although energy is not made in mitochondria, they are known as the ―power plants
mj mj mj mj mj mj mj mj mj mj mj mj mj
‖ ofthe cell because they:
mj m
j mj mj mj
A) Contain RNA for protein synthesis
mj mj mj mj
B) Utilize glycolysis for oxidative energy
mj mj mj mj
C) Extract energy from organic compounds
mj mj mj mj
D) Store calcium bonds for muscle contractions
mj mj mj mj mj
Ans: C mj
Feedback:
Mitochondria contain the enzymes needed for transforming organic compounds into energy t
mj mj mj mj mj mj mj mj mj mj mj
hatis easily accessible to the cell. Mitochondria contain their own DNA. Glycolysis is anaer
m
j mj mj mj mj mj mj mj mj mj mj mj mj mj
obic metabolism and unrelated to oxidative energy. Mitochondria store phosphate bonds (suc
mj mj mj mj mj mj mj mj mj mj mj
h as in ATP) to power cellular functions.
mj mj mj mj mj mj mj
7. Semen analysis indicates that the client's sperm have decreased motility. Which of
mj mj mj mj mj mj mj mj mj mj mj mj
thefollowing cellular components may be defective within the client's sperm?
m
j mj mj mj mj mj mj mj mj mj
A) Ribosomes
B) Microtubules
C) Mitochondria
D) Microfilaments
