, Robbins Basic Pathology 10th Edition Kymar Abbas Test Bank
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Chapter 1. The Cell as a Unit of Health and Disease
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1 The nucleus nn , which is essential for function nn nn nn nn nn
andsurvival of the cell.
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A) is the site of protein synthesis nn nn nn nn nn
B) contains the genetic code nn nn nn
C) transforms cellular energy nn nn
D) initiates aerobic metabolism nn nn
2 Although energy is not made in mitochondria, they are
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knownas the power plants of the cell because they:
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A) contain RNA for protein synthesis. nn nn nn nn
B) utilize glycolysis for oxidative energy.
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C) extract energy from organic compounds.
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D) store calcium bonds for muscle contractions.
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3 Although the basic structure of the cell plasma membrane
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isformed by a lipid bilayer, most of the specific
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membrane functions are carried out by:
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A) bound and transmembrane proteins. nn nn nn
B) complex, long carbohydrate chains. nn nn nn
C) surface antigens and hormone receptors. nn nn nn nn
D) a gating system of selective ion channels.
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4 To effectively relay signals, cell-to-cell
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communicationutilizes chemical messenger systems
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that:
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A) displace surface receptor proteins. nn nn nn
B) accumulate within cell gap junctions. nn nn nn nn
C) bind to contractile microfilaments.
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D) release secretions into extracellular fluid.
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,5 Aerobic metabolism, also known as oxidative
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metabolism,provides energy by:
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A) removing the phosphate bonds from ATP. nn nn nn nn nn
B) combining hydrogen and oxygen to nn nn nn nn
formwater.
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C) activating pyruvate stored in the cytoplasm. nn nn nn nn nn
D) breaking down glucose to form lactic acid. nn nn nn nn nn nn
6 Exocytosis, the reverse of endocytosis, is important in
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nn into the extracellular fluid.
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A) Engulfing and ingesting fluid and proteins nn nn nn nn nn
fortransport nn n
B) Killing, degrading, and dissolving nn nn nn
harmfulmicroorganisms nn n
C) Removing cellular debris and nn nn nn
releasingsynthesized substances
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D) Destruction of particles by lysosomal nn nn nn nn
enzymesfor secretion
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7 The process responsible for generating and
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conductingmembrane potentials is:
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A) diffusion of current-carrying ions. nn nn nn
B) millivoltage of electrical potential. nn nn nn
C) polarization of charged particles. nn nn nn
D) ion channel neurotransmission.
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8 Epithelial tissues are classified according to the shape of
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thecells and the number of layers. Which of the following
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is a correctly matched description and type of epithelial
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tissue?
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A) Simple epithelium: cells in contact with nn nn nn nn nn
intercellular matrix; some do not extend
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tosurface nn n
, B) Stratified epithelium: single layer of cells; nn nn nn nn nn
allcells rest on basement membrane
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C) Glandular epithelium: arise from surface nn nn nn nn
epithelia and underlying connective tissue
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D) Pseudostratified epithelium: multiple layers nn nn nn
ofcells; deepest layer rests on basement
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membrane
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9 Connective tissue contains fibroblasts that are responsible for:
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A) providing a fibrous framework for capillaries. nn nn nn nn nn
B) synthesis of collagen, elastin, and nn nn nn nn
reticularfibers.
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C) forming tendons and the fascia that nn nn nn nn nn
coversmuscles.
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D) filling spaces between tissues to keep organs
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inplace.
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10 Although all muscle tissue cells have some similarities,
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smooth muscle (also known as involuntary muscle)
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differsby:
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A) having dense bodies attached to nn nn nn nn
actinfilaments. nn n
B) containing sarcomeres between Z lines and nn nn nn nn nn
Mbands.
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C) having rapid contractions and abundant
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cross-striations.
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D) contracting in response to nn nn nn
increasedintracellular calcium.
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11 Which of the following aspects of the function of the
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nucleusis performed by ribosomal RNA (rRNA)?
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A) Copying and carrying DNA instructions nn nn nn nn
forprotein synthesis nn n nn
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