Robbins Basic Pathology 10th Edition Kymar Abbas Test Bank

Robbins Basic Pathology 10th Edition Kymar Abbas Test Bank
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ChapterzI1.zIThezICellzIaszIazIUnitzIofzIHealthzIandzIDisease
1 The nucleus zI


, which is essential for function and
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survival of the cell. zI zI zI



A) is the site of protein synthesis zI zI zI zI zI



B) contains the genetic code zI zI zI



C) transforms cellular energy zI zI



D) initiates aerobic metabolism zI zI




2 Although energy is not made in mitochondria, they are known
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as the power plants of the cell because they:
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A) contain RNA for protein synthesis. zI zI zI zI



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 is
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formed by a lipid bilayer, most of the specific membrane fu
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nctions are carried out by: zI zI zI zI



A) bound and transmembrane proteins. zI zI zI



B) complex, long carbohydrate chains. zI zI zI



C) surface antigens and hormone receptors.
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D) a gating system of selective ion channels.
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4 To effectively relay signals, cell-to-
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cell communicationutilizes chemical messenger system
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s that:
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A) displace surface receptor proteins. zI zI zI



B) accumulate within cell gap junctions. zI zI zI zI



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 metabolism,
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provides energy by: zI zI



A) removing the phosphate bonds from ATP. zI zI zI zI zI



B) combining hydrogen and oxygen to form zI zI zI zI zI zI


water.
C) activating pyruvate stored in the cytoplasm. zI zI zI zI zI



D) breaking down glucose to form lactic acid.
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6 Exocytosis, the reverse of endocytosis, is important in
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zI into the extracellular fluid.
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A) Engulfing and ingesting fluid and proteins for zI zI zI zI zI zI zI


transport
B) Killing, degrading, and dissolving harmful zI zI zI zI zI


microorganisms
C) Removing cellular debris and releasing zI zI zI zI zI


synthesized substances zI



D) Destruction of particles by lysosomal enzymes zI zI zI zI zI zI


for secretion zI




7 The process responsible for generating and conducting
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membrane potentials is: zI zI



A) diffusion of current-carrying ions. zI zI zI



B) millivoltage of electrical potential. zI zI zI



C) polarization of charged particles. zI zI zI



D) ion channel neurotransmission.
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8 Epithelial tissues are classified according to the shape of the
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cells and the number of layers. Which of the following is a c
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orrectly matched description and type of epithelial tissue?
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A) Simple epithelium: cells in contact with in
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tercellular matrix; some do not extend tos zI zI zI zI zI zI zI


urface

,B) Stratified epithelium: single layer of cells; all
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cells rest on basement membrane
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C) Glandular epithelium: arise from surface epit zI zI zI zI zI


helia and underlying connective tissue
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D) Pseudostratified epithelium: multiple layers of zI zI zI zI zI


cells; deepest layer rests on basement membra
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ne
9 Connective tissue contains fibroblasts that are responsible for:
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A) providing a fibrous framework for capillaries. zI zI zI zI zI



B) synthesis of collagen, elastin, and reticular
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fibers.
C) forming tendons and the fascia that covers
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muscles.
D) filling spaces between tissues to keep organs in
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place.
10 Although all muscle tissue cells have some similarities, s
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mooth muscle (also known as involuntary muscle) differsb
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y:
A) having dense bodies attached to actin zI zI zI zI zI zI


filaments.
B) containing sarcomeres between Z lines and M zI zI zI zI zI zI zI


bands.
C) having rapid contractions and abundant cross-
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striations.
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D) contracting in response to increased zI zI zI zI zI


intracellular calcium. zI




11 Which of the following aspects of the function of the nucleus
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is performed by ribosomal RNA (rRNA)?
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A) Copying and carrying DNA instructions for zI zI zI zI zI zI


protein synthesis zI

, B) Carrying amino acids to the site of protein
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synthesis
C) Providing the site where protein synthesisocc
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urs
D) Regulating and controlling protein synthesis zI zI zI zI




12 Breakdown and removal of foreign substances and worn-
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outcell parts are performed by which of the following organ
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elles?
A) Lysosomes
B) Golgi apparatus zI



C) Ribosomes
D) Endoplasmic reticulum (ER) zI zI




13 Impairment in the function of peroxisomes would result in:
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A) inadequate sites for protein synthesis. zI zI zI zI



B) an inability to transport cellular products
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across the cell membrane.zI zI zI



C) insufficient energy production within a cell. zI zI zI zI zI



D) accumulation of free radicals in the cytoplasm. zI zI zI zI zI zI




14 After several months of trying to conceive, a couple is underg
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oing fertility testing. Semen analysis indicates that themans s
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perm have decreased motility, a finding that is thoughtto und
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erlie the couples inability to become pregnant. Which of the f
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ollowing cellular components may be defective withinthe ma
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ns sperm?
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A) Ribosomes
B) Microtubules
C) Mitochondria
D) Microfilaments