Biochemistry Quiz
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Questions and Answers

What serves as an alternative fuel source for the brain after several days of fasting?

  • Glucose
  • Fructose
  • Eicosanoids
  • Ketone bodies (correct)
  • Which amino acid is most likely to be found on the surface of a globular protein, exposed to the aqueous environment of a cell?

  • Asparagine (correct)
  • Tryptophan
  • Valine
  • Isoleucine
  • To which amino acid can a phosphate group be added to generate a phosphoprotein?

  • Tyrosine (correct)
  • Alanine
  • Glutamine
  • Proline
  • Which type of nitrogenous base is a purine?

    <p>Adenine</p> Signup and view all the answers

    What type of microscope is best suited to visualize the intracellular organization of a cell structure 40nm in size?

    <p>Transmission electron microscope</p> Signup and view all the answers

    What type of structure is best visualized by the dye used to stain the provided image?

    <p>Mucus and glycogen</p> Signup and view all the answers

    The popliteal artery is a direct continuation of which vessel?

    <p>Femoral artery</p> Signup and view all the answers

    What vessels form the venous angle?

    <p>Subclavian and internal jugular veins</p> Signup and view all the answers

    Which organ does the internal iliac vein drain?

    <p>Uterus</p> Signup and view all the answers

    Which statement about the renal veins is false?

    <p>The left renal vein is shorter than the right one</p> Signup and view all the answers

    What organ does the portal vein carry nutrients to?

    <p>Liver</p> Signup and view all the answers

    What vessels do the superior and inferior venae cavae anastomose via?

    <p>Azygos vein</p> Signup and view all the answers

    What is the function of cells that have cytoplasmic regions of both basophilia and intense eosinophilia, and highly euchromatic nuclei with prominent nucleoli?

    <p>Protein secretion</p> Signup and view all the answers

    Which organelle is responsible for protein synthesis and is characterized by the presence of ribosomes attached to its surface?

    <p>Rough ER</p> Signup and view all the answers

    What is the function of protein vesicles?

    <p>Protein secretion</p> Signup and view all the answers

    What type of cytoskeletal fiber should be present in a finger-like process of the cytoplasm to perform its function?

    <p>Actin filaments</p> Signup and view all the answers

    Which cells are more likely to be involved in protein secretion?

    <p>Cells with basophilic and eosinophilic regions</p> Signup and view all the answers

    What is the likely function of cells in a cancerous tumor that are secreting high amounts of proteins into the surrounding tissue?

    <p>Protein secretion</p> Signup and view all the answers

    What would you most likely observe in the cytoplasm of cancerous cells that are highly secretory?

    <p>Vacuolated cytoplasm</p> Signup and view all the answers

    In the histopathological study of the miscarriage, which cellular fibers are most likely affected?

    <p>Microfilaments</p> Signup and view all the answers

    In the TEM of the nucleus, which labeled region is most likely to contain actively transcribing DNA?

    <p>Euchromatin region</p> Signup and view all the answers

    What would you expect to observe in the pancreatic secretory cells from a patient with digestive and metabolic symptoms?

    <p>Vacuolation of the cytoplasm</p> Signup and view all the answers

    What is the most likely reason for the patient's metabolic symptoms in the pancreatic secretory cell biopsy?

    <p>Defective protein secretion</p> Signup and view all the answers

    What is the most likely cause of the miscarriage in the 28-year-old female?

    <p>Genetic defect in the cytoskeleton</p> Signup and view all the answers

    What is the most likely direction of the spread of bacterial infection in the urinary system?

    <p>Urethra to bladder to ureters to kidneys</p> Signup and view all the answers

    Which structure is at risk of injury due to the fracture indicated in the medical image?

    <p>Proximal part of left ureter</p> Signup and view all the answers

    Which medical image correlates with the organs seen in the autopsy?

    <p>Image 2</p> Signup and view all the answers

    What is the function of the tube described in the statement?

    <p>To transport urine</p> Signup and view all the answers

    Which of the following organs is located inferior to the organ that temporarily stores urine?

    <p>Urethra</p> Signup and view all the answers

    What is the normal course of the tube described in the statement?

    <p>It curves along its length</p> Signup and view all the answers

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