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The Biologic Basis For Disease In Adults And Children, 5th Edition | Pathophysiology TEST BANK - _Huether & McCance | complete guide.|Grade A+. £14.71   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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  • Advance pathophysiology
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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.
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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.
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Eukaryotic cells have membrane bounded cellular components called organelles.
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Noorganelles describes a prokaryotic cell.
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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
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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.
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, 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.
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Peripheral membrane proteins are not embedded in the layer, but reside at the
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surface.Glycoproteins act as cell surface markers.
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, 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
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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.
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Elastin is found in the lungs and allows tissues to stretch; it is not associated
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withcancerous cells.
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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
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cell.Gap junctions allow communication from the inside of one cell to the inside
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of another.
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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.
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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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