Answerdone.com
TEST BANK FOR
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Porth's Essentials of Pathophysiology 5th edition
c* c* c* c* c*
by Tommie L Norris
c* c* c*
,Answerdone.com
1. Chapter 1 c*
Although the basic structure of the cell plasma membrane is formed by a lipid bilayer, most
c* c* c* c* c* c* c* c* c* c* c* c* c* c* c* c
ofthe specific membrane functions are carried out by:
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A) Bound and transmembrane proteins
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B) Complex, long carbohydrate chains c* c* c*
C) Surface antigens and hormone receptors
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D) A gating system of selective ion channels
c* c* c* c* c* c*
Ans: A c*
Feedback:
The functions of plasma membrane depend on the presence of proteins that are bound in the li
c* c* c* c* c* c* c* c* c* c* c* c* c* c* c* c*
pidbilayer and some that have the ability to pass freely into and out of the cell.
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Carbohydrate chains form a cell coat that surrounds the membrane and that contain surface
c* c* c* c* c* c* c* c* c* c* c* c* c* c*
antigens and surface hormone receptors. Some ion channels are gated and open only when t
c* c* c* c* c* c* c* c* c* c* c* c* c* c*
hemembrane potential changes significantly.
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2. Which describes the function of the nucleus?
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A) It is basically the site of protein synthesis in the body.
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B) It contains the genetic code for the individual.
c* c* c* c* c* c* c*
C) It is the transformer of cellular energy.
c* c* c* c* c* c*
D) It initiates the process of aerobic metabolism.
c* c* c* c* c* c*
Ans: B c*
Feedback:
The nucleus contains DNA, which contains the genetic code that contains the information that
c* c* c* c* c* c* c* c* c* c* c* c* c* c
controls cells. Ribosomes synthesize protein. Mitochondria transform organic compounds into
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cellular energy. Mitochondria require oxygen for aerobic metabolism, using hydrogen and car
* c* c* c* c* c* c* c* c* c* c* c*
bon combined with oxygen molecules to form carbon dioxide and water as energy is released.
c* c* c* c* c* c* c* c* c* c* c* c* c* c*
3. Which of the following aspects of the function of the nucleus is performed by riboso
c* c* c* c* c* c* c* c* c* c* c* c* c* c*
malRNA (rRNA)? *c c*
,Answerdone.com
A) Copying and carrying DNA instructions for protein synthesis
c* c* c* c* c* c* c*
B) Carrying amino acids to the site of protein synthesis
c* c* c* c* c* c* c* c*
C) Providing the site where protein synthesis occurs
c* c* c* c* c* c*
D) Regulating and controlling protein synthesis c* c* c* c*
Ans: C c*
Feedback:
There are three types of ribonucleic acid (messenger RNA, ribosomal RNA, and transfer RN
c* c* c* c* c* c* c* c* c* c* c* c* c*
A)that move to the cytoplasm and carry out the actual synthesis of proteins.
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Messenger RNA (mRNA) copies and carries the DNA instructions for protein synthesis to t
c* c* c* c* c* c* c* c* c* c* c* c* c*
hecytoplasm; ribosomal RNA (rRNA) is the site of protein synthesis; and transfer RNA (tR
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NA)transports amino acids to the site of protein synthesis for incorporation into the protein
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being synthesized. c*
4. Which accurately explains the functions of the organelles lysosomes? They:
c* c* c* c* c* c* c* c* c*
A) Are sacs filled with enzymes that breakdown and remove foreign substances and wor
c* c* c* c* c* c* c* c* c* c* c* c*
n-out cell parts
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B) Function in association with the endoplasmic reticulum to modify protein end produc
c* c* c* c* c* c* c* c* c* c* c*
tsand package them into secretory granules or vesicles
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C) Are small particles of nucleoproteins that are involved in the synthesis of proteins t
c* c* c* c* c* c* c* c* c* c* c* c* c*
hatremain in the cell as cytoplasmic structural or functional elements
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D) Are a dynamic system of interconnected membranous tubes that functions as a tubul
c* c* c* c* c* c* c* c* c* c* c* c*
arcommunication system for transporting various substances from one part of the cell to ano
*c c* c* c* c* c* c* c* c* c* c* c* c* c*
ther
Ans: A c*
Feedback:
Lysosomes are sacs that are filled with hydrolytic enzymes that aid in the processing and rem
c* c* c* c* c* c* c* c* c* c* c* c* c* c* c*
oval of unwanted substances within the cytoplasm. The Golgi apparatus functions in associati
c* c* c* c* c* c* c* c* c* c* c* c*
on with the endoplasmic reticulum to modify and package substances in preparation forsecreti
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on, whereas ribosomes are small particles of nucleoproteins that are involved in the synthesis
c* c* c* c* c* c* c* c* c* c* c* c* c* c*
of proteins. The ER is a tubular communication system for transporting various substances fr
c* c* c* c* c* c* c* c* c* c* c* c* c*
om one part of the cell to another.
c* c* c* c* c* c* c*
, Answerdone.com
5. Impairment in the function of peroxisomes would result in:
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A) Inadequate sites for protein synthesis c* c* c* c*
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 c* c* c* c* c* c*
Ans: D c*
Feedback:
Peroxisomes function in the control of free radicals; unless degraded, these highly unstab
c* c* c* c* c* c* c* c* c* c* c* c*
lechemical compounds damage other cytoplasmic molecules. Peroxisomes do not directl
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y contribute to energy production, protein synthesis, or transport of cellular secretions.
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6. Although energy is not made in mitochondria, they are known as the “power plants”
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ofthe cell because they:
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A) Contain RNA for protein synthesis
c* c* c* c*
B) Utilize glycolysis for oxidative energy
c* c* c* c*
C) Extract energy from organic compounds
c* c* c* c*
D) Store calcium bonds for muscle contractions
c* c* c* c* c*
Ans: C c*
Feedback:
Mitochondria contain the enzymes needed for transforming organic compounds into energy th
c* c* c* c* c* c* c* c* c* c* c*
atis easily accessible to the cell. Mitochondria contain their own DNA. Glycolysis is anaerobi
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c metabolism and unrelated to oxidative energy. Mitochondria store phosphate bonds (such as
c* c* c* c* c* c* c* c* c* c* c* c*
in ATP) to power cellular functions.
c* c* c* c* c* c*
7. Semen analysis indicates that the client's sperm have decreased motility. Which of t
c* c* c* c* c* c* c* c* c* c* c* c*
hefollowing cellular components may be defective within the client's sperm?
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A) Ribosomes
B) Microtubules
C) Mitochondria
D) Microfilaments
TEST BANK FOR
c* c*
Porth's Essentials of Pathophysiology 5th edition
c* c* c* c* c*
by Tommie L Norris
c* c* c*
,Answerdone.com
1. Chapter 1 c*
Although the basic structure of the cell plasma membrane is formed by a lipid bilayer, most
c* c* c* c* c* c* c* c* c* c* c* c* c* c* c* c
ofthe specific membrane functions are carried out by:
* *c c* c* c* c* c* c* c*
A) Bound and transmembrane proteins
c* c* c*
B) Complex, long carbohydrate chains c* c* c*
C) Surface antigens and hormone receptors
c* c* c* c*
D) A gating system of selective ion channels
c* c* c* c* c* c*
Ans: A c*
Feedback:
The functions of plasma membrane depend on the presence of proteins that are bound in the li
c* c* c* c* c* c* c* c* c* c* c* c* c* c* c* c*
pidbilayer and some that have the ability to pass freely into and out of the cell.
*c c* c* c* c* c* c* c* c* c* c* c* c* c* c* c*
Carbohydrate chains form a cell coat that surrounds the membrane and that contain surface
c* c* c* c* c* c* c* c* c* c* c* c* c* c*
antigens and surface hormone receptors. Some ion channels are gated and open only when t
c* c* c* c* c* c* c* c* c* c* c* c* c* c*
hemembrane potential changes significantly.
*c c* c* c*
2. Which describes the function of the nucleus?
c* c* c* c* c* c*
A) It is basically the site of protein synthesis in the body.
c* c* c* c* c* c* c* c* c* c*
B) It contains the genetic code for the individual.
c* c* c* c* c* c* c*
C) It is the transformer of cellular energy.
c* c* c* c* c* c*
D) It initiates the process of aerobic metabolism.
c* c* c* c* c* c*
Ans: B c*
Feedback:
The nucleus contains DNA, which contains the genetic code that contains the information that
c* c* c* c* c* c* c* c* c* c* c* c* c* c
controls cells. Ribosomes synthesize protein. Mitochondria transform organic compounds into
* c* c* c* c* c* c* c* c* c* c
cellular energy. Mitochondria require oxygen for aerobic metabolism, using hydrogen and car
* c* c* c* c* c* c* c* c* c* c* c*
bon combined with oxygen molecules to form carbon dioxide and water as energy is released.
c* c* c* c* c* c* c* c* c* c* c* c* c* c*
3. Which of the following aspects of the function of the nucleus is performed by riboso
c* c* c* c* c* c* c* c* c* c* c* c* c* c*
malRNA (rRNA)? *c c*
,Answerdone.com
A) Copying and carrying DNA instructions for protein synthesis
c* c* c* c* c* c* c*
B) Carrying amino acids to the site of protein synthesis
c* c* c* c* c* c* c* c*
C) Providing the site where protein synthesis occurs
c* c* c* c* c* c*
D) Regulating and controlling protein synthesis c* c* c* c*
Ans: C c*
Feedback:
There are three types of ribonucleic acid (messenger RNA, ribosomal RNA, and transfer RN
c* c* c* c* c* c* c* c* c* c* c* c* c*
A)that move to the cytoplasm and carry out the actual synthesis of proteins.
*c c* c* c* c* c* c* c* c* c* c* c* c*
Messenger RNA (mRNA) copies and carries the DNA instructions for protein synthesis to t
c* c* c* c* c* c* c* c* c* c* c* c* c*
hecytoplasm; ribosomal RNA (rRNA) is the site of protein synthesis; and transfer RNA (tR
*c c* c* c* c* c* c* c* c* c* c* c* c* c*
NA)transports amino acids to the site of protein synthesis for incorporation into the protein
*c c* c* c* c* c* c* c* c* c* c* c* c* c* c*
being synthesized. c*
4. Which accurately explains the functions of the organelles lysosomes? They:
c* c* c* c* c* c* c* c* c*
A) Are sacs filled with enzymes that breakdown and remove foreign substances and wor
c* c* c* c* c* c* c* c* c* c* c* c*
n-out cell parts
*c c* c*
B) Function in association with the endoplasmic reticulum to modify protein end produc
c* c* c* c* c* c* c* c* c* c* c*
tsand package them into secretory granules or vesicles
*c c* c* c* c* c* c* c*
C) Are small particles of nucleoproteins that are involved in the synthesis of proteins t
c* c* c* c* c* c* c* c* c* c* c* c* c*
hatremain in the cell as cytoplasmic structural or functional elements
*c c* c* c* c* c* c* c* c* c*
D) Are a dynamic system of interconnected membranous tubes that functions as a tubul
c* c* c* c* c* c* c* c* c* c* c* c*
arcommunication system for transporting various substances from one part of the cell to ano
*c c* c* c* c* c* c* c* c* c* c* c* c* c*
ther
Ans: A c*
Feedback:
Lysosomes are sacs that are filled with hydrolytic enzymes that aid in the processing and rem
c* c* c* c* c* c* c* c* c* c* c* c* c* c* c*
oval of unwanted substances within the cytoplasm. The Golgi apparatus functions in associati
c* c* c* c* c* c* c* c* c* c* c* c*
on with the endoplasmic reticulum to modify and package substances in preparation forsecreti
c* c* c* c* c* c* c* c* c* c* c* c* *c
on, whereas ribosomes are small particles of nucleoproteins that are involved in the synthesis
c* c* c* c* c* c* c* c* c* c* c* c* c* c*
of proteins. The ER is a tubular communication system for transporting various substances fr
c* c* c* c* c* c* c* c* c* c* c* c* c*
om one part of the cell to another.
c* c* c* c* c* c* c*
, Answerdone.com
5. Impairment in the function of peroxisomes would result in:
c* c* c* c* c* c* c* c*
A) Inadequate sites for protein synthesis c* c* c* c*
B) An inability to transport cellular products across the cell membrane
c* c* c* c* c* c* c* c* c*
C) Insufficient energy production within a cell
c* c* c* c* c*
D) Accumulation of free radicals in the cytoplasm c* c* c* c* c* c*
Ans: D c*
Feedback:
Peroxisomes function in the control of free radicals; unless degraded, these highly unstab
c* c* c* c* c* c* c* c* c* c* c* c*
lechemical compounds damage other cytoplasmic molecules. Peroxisomes do not directl
*c c* c* c* c* c* c* c* c* c*
y contribute to energy production, protein synthesis, or transport of cellular secretions.
c* c* c* c* c* c* c* c* c* c* c*
6. Although energy is not made in mitochondria, they are known as the “power plants”
c* c* c* c* c* c* c* c* c* c* c* c* c* c*
ofthe cell because they:
*c c* c* c*
A) Contain RNA for protein synthesis
c* c* c* c*
B) Utilize glycolysis for oxidative energy
c* c* c* c*
C) Extract energy from organic compounds
c* c* c* c*
D) Store calcium bonds for muscle contractions
c* c* c* c* c*
Ans: C c*
Feedback:
Mitochondria contain the enzymes needed for transforming organic compounds into energy th
c* c* c* c* c* c* c* c* c* c* c*
atis easily accessible to the cell. Mitochondria contain their own DNA. Glycolysis is anaerobi
*c c* c* c* c* c* c* c* c* c* c* c* c* c*
c metabolism and unrelated to oxidative energy. Mitochondria store phosphate bonds (such as
c* c* c* c* c* c* c* c* c* c* c* c*
in ATP) to power cellular functions.
c* c* c* c* c* c*
7. Semen analysis indicates that the client's sperm have decreased motility. Which of t
c* c* c* c* c* c* c* c* c* c* c* c*
hefollowing cellular components may be defective within the client's sperm?
*c c* c* c* c* c* c* c* c* c*
A) Ribosomes
B) Microtubules
C) Mitochondria
D) Microfilaments
