Cell Injury, Death, And Adaptation

13 Questions | Total Attempts: 9534

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Cell Injury, Death, And Adaptation

They may be tiny little things that make up our bodies, but believe it or not, cells can become injured and even die and adapt given certain conditions. In the following quiz on cells, we’ll be looking at how all of this can occur and what the processes are behind it. Good luck!


Questions and Answers
  • 1. 
    Which of the following is the most common cause of cell injury?
    • A. 

      Chemical injury

    • B. 

      Hypoxia

    • C. 

      Infections

    • D. 

      Immunologic and Autoimmune diseases

  • 2. 
    A decrease in ATP will have which of the following cellular effects? (select 2)
    • A. 

      Decrease in pH (due to increased lactate production)

    • B. 

      Increased Oxidative phosporylation

    • C. 

      Influx of calcium

    • D. 

      Influx of potassium

  • 3. 
    Adaptive cell responses such as aplasia and atrophy are potentially reversible processes.
    • A. 

      True

    • B. 

      False

  • 4. 
    After an accident, you are unable to workout for months and so your muscles (skeletal) are looking smaller than usual. What has happened here? (select 2)
    • A. 

      Muscle atrophy

    • B. 

      Muscle aplasia

    • C. 

      Muscle Hypertrophy

    • D. 

      Muscle Hyperplasia

    • E. 

      The size of the muscle cells shrunk over time

    • F. 

      The number of muscle cells has decreased over time

  • 5. 
    A patient comes in after surgery after being diagnosed with a rare condition in which small bone formations have developed intraocularly. You diagnose this as ...
    • A. 

      Intraocular squamous metaplasia

    • B. 

      Intraocular myeloid metaplasia

    • C. 

      A vitamin A deficiency

    • D. 

      Intraocular osseous metaplasia

  • 6. 
    Intradermal nevi fall into which category?
    • A. 

      Aplasia

    • B. 

      Dysplasia

    • C. 

      Hyperplasia

    • D. 

      Metaplasia

  • 7. 
    AMD occurs when _______ accumulates in the retina and eventually causes macular degeneration. This combination of _______ accumulation and atrophy can be referred to as __________
    • A. 

      Lipofuscin, Lipofuscin, Brown Atrophy

    • B. 

      Lipofuscin, Bilirubin, Icterus

    • C. 

      Hemosiderin, Hemosiderin, Jaundice

    • D. 

      Lipofuscin, Lipofuscin, Dystrophic Calcification

  • 8. 
    Which of the following is not a sign of irreversible cell injury?
    • A. 

      Severe membrane damage

    • B. 

      Lysosomal rupture

    • C. 

      Pigment accumulation (lipofuscin, hemosiderin, melanin, ...)

    • D. 

      Pyknosis

    • E. 

      Karyolysis

  • 9. 
    After an ischemic injury, which of the following will survive the longest without irreversible cell damage?
    • A. 

      Bicep muscle cells

    • B. 

      Liver cells

    • C. 

      Myocardial cells

    • D. 

      Neurons

  • 10. 
    All of the following are markers of irreversible cell damage, eventually leading to cell death, except for?
    • A. 

      Lysergic acid diethylamide (LSD)

    • B. 

      Aspartate aminotransferase (AST)

    • C. 

      Creatine phospokinase (CPK)

    • D. 

      Lactate dehydrogenase (LDH)

  • 11. 
    If tumor suppressor p53 was deactivated, which of the following would be expected to occur
    • A. 

      Decreased apoptosis of cells

    • B. 

      Increased apoptosis of cells

    • C. 

      No change in apoptosis of cells

  • 12. 
    Necrosis which occurred secondary to vascular occlusion and affected lower extremities would most likely be called
    • A. 

      Gangrenous necrosis

    • B. 

      Coagulation necrosis

    • C. 

      Liquefaction necrosis

    • D. 

      Casseous necrosis

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