discussion 1 Essay

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Chapter 1: Cell Pathology 1-1 Which of the following accounts for differences in cells in a human body? Differences in chromatin Differences in chromosomes Differential content of DNA Differential expression of genes 1-2 Which of the following structures is not normally found in the cytoplasm of a resting cell? DNA Messenger RNA (mRNA) Ribosomal RNA (rRNA) Transfer RNA (tRNA) 1-3 Which of the following cytoplasmic organelles are not found in most all nucleated cells? Endoplasmic reticulum Golgi apparatus Mitochondria Myofilaments 1-4 Which of the following is the primary purpose of mitochondria? Maintenance of cell shape Modification of proteins Production of energy Replication of cellular structures 1…show more content…
Autocrine Endocrine Exocrine Paracrine 1-11 Which of the following best accounts for cellular swelling during reversible cellular injury occurring by transient hypoxia? The extra oxygen directly damages the plasma membrane, allowing in water The extra oxygen overwhelms the Na+/K+ ATPase The lack of oxygen results in decreased energy and shutdown of the Na+/K+ ATPase The lack of oxygen directly destabilizes the plasma membrane, allowing in water 3 1-12 Which of the following is NOT associated with reversible cellular injury? Cellular swelling Decreased energy production Increased autophagy Increased protein synthesis Decreased protein synthesis NOT "increased" pg. 8 1-13 A cell is subject to hypoxic conditions for 20 minutes, then observed under the microscope. The nucleus has become shrunken, with marked condensation of the chromatin. This nuclear change is best described as which of the following? Autophagy Karyolysis Karyorrhexis Pyknosis 1-14 Which of the following is NOT a key factor in determining if a cell will be reversibly or irreversibly damaged during hypoxia? Cellular location Cellular type Degree of hypoxia Hypoxia duration 1-15 Which of the following is most directly responsible for postperfusion injury to cells? Formation of oxygen radicals Hyperfunctioning of Na+/K+ ATPase Overproduction of catalase Shrinkage of cellular membranes 4 1-16 A new drug, Drug X, is

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