Updated/Latest Understanding Pathophysiology 7th Edition Sue E. Huether Kathryn L. McCance Test Bank Comprehensive Pathophysiology Resource Complete Chapter Questions Answers Rationales Disease Mechanisms Clinical Manifestations Case Studies NCLEX Review

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Chapter 1. Cellular Biology Y.F TL T Y.FTL T Y.F TL T




MULTIPLE CHOICE Y.F TL T




1. A student is observing a cell under the microscope. It is observed to have supercoiled
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TL
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a. A single circular chromosome Y.F TL T Y.F TL T Y.F TL T




b. A nucleus Y. F TL
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c. Free-floating nuclear material TL
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d. No organelles TL
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ANS: B TL
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The cell described is a eukaryotic cell, so it has histones and a supercoiled DNA within its
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Y.F TL T nucleus; thus, the nucleus should be observed. Y.F TL T TL
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A single circular chromosome is characteristic of prokaryotic cells, which do not have
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histones.
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Free-floating nuclear material describes a prokaryotic cell, which would not have a distinct TL
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Y.F TL T nucleus.

Eukaryotic cells have membrane bounded cellular components called organelles. No YF
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2. A nurse is instructing the staff about cellular functions. Which cellular function is the
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Y.F TL T nutrients to energy? TL
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a. Metabolic absorption TL
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b. Communication
c. Secretion
d. Respiration

,ANS: D TL
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The ability of the cell to absorb oxygen refers to the cells function of respiration.
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The ability of the cell to function within a society of cells refers to its function of
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Y.F TL T communication.

The ability of the cell to take in nutrients refers to the cells function of metabolic
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absorption.
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The ability of the cell to synthesize new substances and secrete these elsewhere refers to
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3. A eukaryotic cell is undergoing DNA replication. In which region of the cell would
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a. Mitochondria
b. Ribosome
c. Nucleolus
d. Nucleus


ANS: C TL
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The region of the cell that contains genetic material, including a large amount of
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The mitochondria is the site of cellular respiration.
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The ribosomes are involved in manufacturing of proteins within the cell.
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The nucleus contains the nucleolus, and it is the nucleolus that contains genetic material.
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4. The fluid mosaic model for biologic membranes describes membrane behavior.
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Y.F TL T fluid lipid bilayer? Y.F TL T Y.F TL T




a. Peripheral membrane proteins TL
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b. Integral membrane proteins Y.F TL T Y.F TL T

, c. Glycoproteins
d. Cell adhesion molecules Y.F TL T TL
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ANS: B TL
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Integral membrane proteins float freely in the fluid lipid bilayer.
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Peripheral membrane proteins are not embedded in the layer, but reside at the surface.
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Cell adhesion molecules are on the outside of the membrane and allow cells to hook
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together.
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5. Which of the following can bind to plasma membrane receptors? TL
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a. Oxygen
b. Ribosomes
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d. Ligands


ANS: D TL
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Ligands are specific molecules that can bind with receptors on the cell membrane.
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Y.F TL T Oxygen moves by diffusion; it does not bind to receptors.
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Ribosomes make proteins and are not involved in TL
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6. A nurse is reviewing a report from a patient with metastatic cancer. What finding
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a. Decreased fibronectin Y. FTL T




b. Increased collagen TL
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