,Test Bank: Applied Pathophysiology for the Advanced Practice Nurse 2nd Edition
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Dlugasch Story
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Chapter 1 Cellular Function
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1. The nucleus Il ` , which is essential for function and survival of
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thecell.
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A) is the site of protein synthesis
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B) contains the genetic code Il ` Il ` Il`
C) transforms cellular energy Il` Il`
D) initiates aerobic metabolism Il` Il`
2. Although energy is not made in mitochondria, they are known as the
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powerplants of the cell because they:
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A) contain RNA for protein synthesis. Il` Il ` Il ` Il`
B) utilize glycolysis for oxidative energy.
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C) extract energy from organic compounds. Il ` Il` Il` Il`
D) store calcium bonds for muscle contractions.
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3. Although the basic structure of the cell plasma membrane is formed by
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a lipid bilayer, most of the specific membrane functions are carried out
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by:
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A) bound and transmembrane proteins.Il` Il` Il `
B) complex, long carbohydrate chains. Il` Il ` Il`
C) surface antigens and hormone receptors. Il ` Il` Il` Il`
D) a gating system of selective ion channels.
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4. To effectively relay signals, cell-to-cell communication utilizes
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chemicalmessenger systems that:
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A) displace surface receptor proteins. Il` Il` Il `
, B) accumulate within cell gap junctions. Il ` Il` Il` Il`
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, provides
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energyby:
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A) removing the phosphate bonds from ATP. Il` Il` Il` Il ` Il`
B) combining hydrogen and oxygen to form water. Il` Il` Il ` Il ` Il` Il`
C) activating pyruvate stored in the cytoplasm. Il` Il` Il` Il` Il `
D) breaking down glucose to form lactic acid. Il ` Il ` Il` Il` Il` Il `
6. Exocytosis, the reverse of endocytosis, is important in Il` Il` Il` Il` Il` Il ` Il ` into the Il`
extracellular fluid.
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A) Engulfing and ingesting fluid and proteins for transport Il ` Il ` Il` Il` Il` Il` Il `
B) Killing, degrading, and dissolving harmful microorganisms
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C) Removing cellular debris and releasing synthesized substances Il ` Il` Il` Il` Il ` Il`
D) Destruction of particles by lysosomal enzymes for secretion Il` Il ` Il` Il ` Il ` Il ` Il`
7. The process responsible for generating and conducting membrane
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potentialsis:
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A) diffusion of current-carrying ions. Il` Il` Il`
B) millivoltage of electrical potential. Il` Il ` Il`
C) polarization of charged particles. Il` Il ` Il`
D) ion channel neurotransmission.
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8. Epithelial tissues are classified according to the shape of the cells and the
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number of layers. Which of the following is a correctly matched
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descriptionand type of epithelial tissue?
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A) Simple epithelium: cells in contact with intercellular matrix; some do
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notextend to surface
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