Complete Test bank for Porth's Essentials of Pathophysiology 5th Edition by Tommie L. Norris Guide A+ latest Update.
TEST BANK FOR PORTH'S ESSENTIALS OF PATHOPHYSIOLOGY 5TH EDITION BY TOMMIE L. NORRIS ALL CHAPTERS COVERED ISBN-10; 1975107195/ ISBN-13; 978-1975107192/ GRADED A+
Porth's Essentials of Pathophysiology 5th Edition Test Bank by Tommie L Norris All Chapters (1-46) | A+ ULTIMATE GUIDE
llular energy. Mitochondria require oxygen for aerobic metabolism, using hydrogen and carbon
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combined with oxygen molecules to form carbon dioxide and water as energy is released.
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3. Which of the following aspects of the function of the nucleus is performed by ribosoma
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lRNA (rRNA)?
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A) Copying and carrying DNA instructions for protein synthesis
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B) Carrying amino acids to the site of protein synthesis
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C) Providing the site where protein synthesis occurs 4i 4i 4i 4i 4i 4i
D) Regulating and controlling protein synthesis 4i 4i 4i 4i
Ans: C 4i
Feedback:
There are three types of ribonucleic acid (messenger RNA, ribosomal RNA, and transfer RNA)
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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 th
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ecytoplasm; ribosomal RNA (rRNA) is the site of protein synthesis; and transfer RNA (tRNA
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)transports amino acids to the site of protein synthesis for incorporation into the protein being
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synthesized.
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4. Which accurately explains the functions of the organelles lysosomes? They:
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A) Are sacs filled with enzymes that breakdown and remove foreign substances and worn
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-out cell parts
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B) Function in association with the endoplasmic reticulum to modify protein end product
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sand 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 tha
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tremain 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 tubular
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communication system for transporting various substances from one part of the cell to anothe
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r
Ans: A 4i
Feedback:
Lysosomes are sacs that are filled with hydrolytic enzymes that aid in the processing and remov
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al of unwanted substances within the cytoplasm. The Golgi apparatus functions in association
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with the endoplasmic reticulum to modify and package substances in preparation forsecretion,
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4 4i
whereas ribosomes are small particles of nucleoproteins that are involved in the synthesis of pr
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oteins. The ER is a tubular communication system for transporting various substances from one
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part of the cell to another.
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5. Impairment in the function of peroxisomes would result in: 4i 4i 4i 4i 4i 4i 4i 4i
A) Inadequate sites for protein synthesis 4i 4i 4i 4i
B) An inability to transport cellular products across the cell membrane
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C) Insufficient energy production within a cell 4i 4i 4i 4i 4i
D) Accumulation of free radicals in the cytoplasm 4i 4i 4i 4i 4i 4i
Ans: D 4i
Feedback:
Peroxisomes function in the control of free radicals; unless degraded, these highly unstable
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chemical compounds damage other cytoplasmic molecules. Peroxisomes do not directly c
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ontribute 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‖ of
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the cell because they:
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A) Contain RNA for protein synthesis 4i 4i 4i 4i
B) Utilize glycolysis for oxidative energy 4i 4i 4i 4i
C) Extract energy from organic compounds 4i 4i 4i 4i
D) Store calcium bonds for muscle contractions
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Ans: C 4i
Feedback:
Mitochondria contain the enzymes needed for transforming organic compounds into energy that
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is easily accessible to the cell. Mitochondria contain their own DNA. Glycolysis is anaerobic m
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etabolism and unrelated to oxidative energy. Mitochondria store phosphate bonds (such as in A
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TP) to power cellular functions.
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7. Semen analysis indicates that the client's sperm have decreased motility. Which of the
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following cellular components may be defective within the client's sperm?
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A) Ribosomes
B) Microtubules
C) Mitochondria
D) Microfilaments
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