BIO 377 Exam 3

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tames38
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290953
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BIO 377 Exam 3
Updated:
2014-12-15 08:47:45
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BIO 377 Exam3 Final
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science,medical physiology
Description:
Exam 3 questions for BIO 377 at UMaine (Fall 2014).
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  1. After fluid passes through the entire proximal tubule, the fluid will enter the _________.
    loop of Henle
  2. Which equation describes the calculation of glomerular filtration pressure (BC= Bowman's capsule and GC= glomerular capillary)?
    (PGC + πBC) - (PBC + πGC)
  3. Which curve best represents the shape of the GFR vs Mean Arterial Presure curve?
  4. What is the equation for determining clearance?
    Clearance = excretion rate/plasma concentration
  5. Water reabsorption is controlled by hormones in the _________.
    collecting duct
  6. All of the following are true about the renal handling of glucose EXCEPT:

    A) None of these are exceptions
    B) Normal plasma [glucose]=100 mg/dL
    C) If plasma [glucose]<200 mg/dL, then practically NO glucose in the urine normally
    D) If plasma [glucose]<200 mg/dL, then practically NO glucose is reabsorbed normally
    E) If plasma [glucose]>300 mg/dL, then urine will be "sweet"
    D) If plasma [glucose]<200 mg/dL, then practically NO glucose is reabsorbed normally
    (this multiple choice question has been scrambled)
  7. If nothing else is removed from the filtrate once it reaches the late distal tubules, the urine excreted would be _________ and _________.
    low osmolarity; large volume
  8. What is the normal range of blood pH?
    7.35 - 7.45
  9. On a typical holiday day-off in Maine, most of your water loss is by way of ________.
    urine
  10. Bicarbonate crosses the apical membrane of the proximal tubule by ____________.
    conversion to carbon dioxide
  11. A patient is exhibiting several signs of acid-base imbalance. Blood tests reveal blood pH is 7.5, and bicarbonate and CO2 levels in blood are both low. What is the state of this patient?
    respiratory alkalosis with renal compensation
  12. Which of the following is NOT true concerning the role of ADH on kidney function?

    A) ADH will tend to help CONCENTRATE urine osmolarity
    B) ADH is released into the blood stream when you are THIRSTY
    C) ADH will tend to make the collecting ducts LESS permeable to salts (like Na+)
    D) ADH will tend to make the collecting ducts MORE permeable to water
    E) ADH stimulates insertion of water channels (aquapores) into collecting ducts
    C) ADH will tend to make the collecting ducts LESS permeable to salts (like Na+)
    (this multiple choice question has been scrambled)
  13. The flow of chyme from the stomach to the small intestine in regulated by the ________.
    pyloric sphincter
  14. In order to begin the process of fat digestion, the fat globules must be _________.
    emulsified by bile salts
  15. Which of the following is FALSE concerning jaundice?

    A) results from too high of bile salt levels in extracellular fluid
    B) the hemolytic form usually results from the destruction of RBCs
    C) the obstructive form usually results from blockage of the bile duct
    D) none of these are FALSE
    E) results in a yellowish tint to eyeballs or other [e.g. skin surface] regions
    A) results from too high of bile salt levels in extracellular fluid
    (this multiple choice question has been scrambled)
  16. The secretion of leptin causes _______.
    decreased sensation of hunger
  17. In response to the presence of food within the duodenum, the increased release of _________ will primarily stimulate an increase in bicarbonate secretion from the exocrine pancreas.
    secretin
  18. The molecular building blocks for urea production in our bodies is (are) ________.
    two ammonia and one carbon dioxide
  19. Vitamin B12 is absorbed in the ________ through _________.
    ileum; complexing with intrinsic factor
  20. What do parietal cells secrete ?
    both hydrogen ions and intrinsic factor
  21. According to the lecture notes, which nutrient is most associated with Δ in [skin pigmentation]?
    Vitamin D
  22. The thyroid gland secretes ________.
    calcitonin
  23. Hormones which can have an effect on glucose levels in the blood include ________.
    glucagons
  24. The beta cells in the ________ release insulin.
    Islets of Langerhans
  25. Calcium levels in the blood may be most affected by secretions from the _________.
    parathyroid
  26. Which of the following hormones is NOT secreted by the endocrine region of the pancreas?

    A) somatostatin
    B) insulin
    C) glucocorticoids
    D) pancreatic polypeptide
    E) glucagons
    C) glucocorticoids
    (this multiple choice question has been scrambled)
  27. Myxedema results from ________.
    hypothyroidism
  28. Any excess glucose in the liver not required for energy and not stored as glycogen will _________.
    be converted into fatty acids
  29. Glycogen from _________ is required for the maintenance of blood glucose.
    liver
  30. For homeotherms, the graph of body temperature versus room temperature ______________.
    goes up, plateaus, then goes up again
  31. What is the primary hormone mediating the stress response (or general adaptation syndrome)?
    cortisol
  32. Acromegaly is associated with a(n) __________.
    increase in growth hormone in adults
  33. Hypersecretion of the adrenal cortex is differently associated with __________.
    inability to cope with stress

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