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The Biologic Basis For Disease In Adults And Children, 5th Edition | Pathophysiology TEST BANK - _Huether & McCance | complete guide.|Grade A+. $17.99   Add to cart
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The Biologic Basis For Disease In Adults And Children, 5th Edition | Pathophysiology TEST BANK - _Huether & McCance | complete guide.|Grade A+.
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The Biologic Basis For Disease In Adults And Children, 5th Edition | Pathophysiology TEST BANK - _Huether & McCance | complete guide.|Grade A+.The Biologic Basis For Disease In Adults And Children, 5th Edition | Pathophysiology TEST BANK - _Huether & McCance | complete guide.|Grade A+.The Biologic ...

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  • September 17, 2024
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Pathophysiology: The Biologic Basis For Disease In Adults And fl fl fl fl fl fl fl fl




Children, 5th Edition Test Bank fl fl fl fl fl




Chapter 01: Cellular Biology fl fl fl




Huether and McCance: Understanding fl fl fl




Pathophysiology,5th Edition
fl fl fl




Chapter 01: Cellular fl fl




BiologyTest Bank
fl fl fl




MULTIPLE CHOICE fl




1. A student is observing a cell under the microscope. It is observed to have
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supercoiled DNA with histones. Which of the following would also be observed by
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fl fl f l the student? fl




a. A single circular chromosome fl fl fl




b. A nucleus fl




c. Free-floating nuclear material fl fl




d. No organelles fl




ANS: B fl




The cell described is a eukaryotic cell, so it has histones and a supercoiled
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DNAwithin its nucleus; thus, the nucleus should be observed.
fl fl fl fl fl fl fl fl fl fl




A single circular chromosome is characteristic of prokaryotic cells, which do not
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havehistones.
fl fl




Free-floating nuclear material describes a prokaryotic cell, which would not have fl fl fl fl fl fl fl fl fl fl




adistinct nucleus.
fl fl fl




Eukaryotic cells have membrane bounded cellular components called organelles.
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Noorganelles describes a prokaryotic cell.
fl fl fl fl fl fl




REF: p. 2 fl fl




2. A nurse is instructing the staff about cellular functions. Which cellular function
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isthe nurse describing when an isolated cell absorbs oxygen and uses it to transform
fl fl fl fl fl fl fl fl fl fl fl fl fl fl fl




fl fl f l nutrients to energy? fl fl




a. Metabolic absorption fl




b. Communication
c. Secretion
d. Respiration
ANS: D fl




The ability of the cell to absorb oxygen refers to the cell’s function of respiration.
fl fl fl fl fl fl fl fl fl fl fl fl fl fl

, The ability of the cell to function within a society of cells refers to its function
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ofcommunication.
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The ability of the cell to take in nutrients refers to the cell’s function of
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metabolicabsorption.
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The ability of the cell to synthesize new substances and secrete these elsewhere refersto
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the cell’s function of secretion.
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REF: p. 3 fl fl




3. A eukaryotic cell is undergoing DNA replication. In which region of the cell
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wouldmost of the genetic information be contained?
fl fl fl fl fl fl fl fl




a. Mitochondria
b. Ribosome
c. Nucleolus
d. Nucleus
ANS: C fl




The region of the cell that contains genetic material, including a large amount
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of ribonucleic acid, most of the DNA, and DNA-binding proteins, is the
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nucleolus.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
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geneticmaterial.
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REF: p. 5 fl fl




4. The fluid mosaic model for biologic membranes describes membrane behavior.
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According to this model, which of the following float singly or as aggregates in the
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fl fl f l fluid lipid bilayer? fl fl




a. Peripheral membrane proteins fl fl




b. Integral membrane proteins fl fl




c. Glycoproteins
d. Cell adhesion molecules fl fl




ANS: B fl




Integral membrane proteins float freely in the fluid lipid bilayer.
fl fl fl fl fl fl fl fl fl




Peripheral membrane proteins are not embedded in the layer, but reside at the
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surface.Glycoproteins act as cell surface markers.
fl fl fl fl fl fl fl

, Cell adhesion molecules are on the outside of the membrane and allow cells to
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hooktogether.
fl fl




REF: p. 6 fl fl




5. Which of the following can bind to plasma membrane receptors? fl fl fl fl fl fl fl fl fl




a. Oxygen
b. Ribosomes
c. Amphipathic lipids fl




d. Ligands
ANS: D fl




Ligands are specific molecules that can bind with receptors on the cell
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membrane.Oxygen moves by diffusion; it does not bind to receptors.
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Ribosomes make proteins and are not involved in fl fl fl fl fl fl fl




binding.Amphipathic lipids are a portion of the cell
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membrane.
fl




REF: p. 11 fl fl




6. A nurse is reviewing a report from a patient with metastatic cancer. What finding
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would support the diagnosis of metastatic cancer? Alterations in extracellular matrix
fl fl fl fl fl fl fl fl fl fl fl




fl fl f l that include:
fl




a. Decreased fibronectin fl




b. Increased collagen fl




c. Decreased elastin fl




d. Increased glycoproteins fl




ANS: A fl




Reduced amounts of fibronectin are found in some types of cancerous cells,
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allowingcancer cells to travel, or metastasize.
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Collagen provides strength, and its breakdown is associated with osteoarthritis,
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notcancer.
fl fl




Elastin is found in the lungs and allows tissues to stretch; it is not associated
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withcancerous cells.
fl fl fl




Decreased, not increased, glycoproteins are associated with cancerous fl fl fl fl fl fl fl




cells.REF: p. 8
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7. Which form of cell communication is used to relate to other cells in direct
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physicalcontact?
fl fl

, a. Cell junction fl




b. Gap junction fl




c. Desmosomes
d. Tight junctions fl




ANS: A fl




Cell junctions hold cells together and permit molecules to pass from cell to
fl fl fl fl fl fl fl fl fl fl fl fl




cell.Gap junctions allow communication from the inside of one cell to the inside
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of another.
fl fl




Desmosomes are not involved in communication, but allow cells to hold together.
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Tight junctions are barriers that prevent movement of some substances and
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leakagesof others.
fl fl fl




REF: p. 9 fl fl




8. Pancreatic beta cells secrete insulin, which inhibits secretion of glucagon from
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neighboring alpha cells. This action is an example of which of the following signaling
fl fl fl fl fl fl fl fl fl fl fl fl fl fl




fl fl f l types?
a. Paracrine
b. Autocrine
c. Neurohormonal
d. Hormonal
ANS: A fl




Paracrine signaling involves the release of local chemical mediators that are quickly
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taken up, destroyed, or immobilized, as in the case of insulin and the inhibition of
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thesecretion of glucagon.
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When cells produce signals that they themselves respond to, autocrine signaling isused.
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Neurohormonal signaling involves secretion of hormones into the bloodstream fl fl fl fl fl fl fl fl




byneurosecretory hormones.
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Hormonal signaling involves specialized endocrine cells that secrete hormone
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chemicals released by one set of cells that travel through the tissue through
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thebloodstream to produce a response in other sets of cells.
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REF: p. 11 fl fl




9. In cellular metabolism, each enzyme has a high affinity for a:
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