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5 Written questions

2 Matching questions

  1. c
  2. b
  1. a Generally, negatively charged plasma proteins are:
    moved across the filtration membrane by active transport pumps.
    attracted by the positive charge of the filtration membrane.
    repelled by the negative charge of the filtration membrane.
    engulfed by endocytosis and reabsorbed at the filtration membrane.
  2. b
    This figure shows a frontal section of the kidney. What structure does number 5 indicate?
    Renal medulla
    Renal lobe
    Renal sinus
    Renal pyramid
    Renal cortex

5 Multiple choice questions

  1. The capillaries of the glomerulus differ from most other capillary networks in the body because they:
    carry only deoxygenated blood.
    drain into an arteriole instead of a venule.
    contain no endothelium.
    absorb nutrients from the glomerular capsule.
    secrete mucus.
  2. Nutrients such as glucose and amino acids within the tubular fluid:
    are completely secreted.
    are completely reabsorbed.
    have half of their plasma concentration secreted.
    have a little less than half of their tubular fluid concentration reabsorbed.
    have concentrations in the filtrate and urine that match their transport maximum.
  3. In response to low blood ________, the kidneys secrete __________.
    calcium, renin
    oxygen, erythropoietin
    sodium, calcitriol
    potassium, erythropoietin
    glucose, calcitriol
  4. Sympathetic stimulation of the kidney results in:
    constriction of afferent arterioles and an increase in the surface area of the glomerulus.
    constriction of afferent arterioles and a decrease in the surface area of the glomerulus.
    dilation of afferent arterioles and an increase in the surface area of the glomerulus.
    dilation of afferent arterioles and a decrease in the surface area of the glomerulus.
  5. If there is an increase in systemic blood pressure, the resulting stretch of afferent arterioles results in reflexive:
    vasoconstriction of efferent arterioles to raise GFR.
    vasoconstriction of afferent arterioles to keep GFR normal.
    vasodilation of efferent arterioles to lower GFR.
    vasodilation of afferent arterioles to keep GFR normal.

5 True/False questions

  1. bThe presence of proteins in the plasma tends to:
    push fluid across the filtration membrane.
    draw fluid back into the glomerulus.

          

  2. bThe normal pH for urine:
    is anything below 7.0.
    is anything above 7.0
    ranges between 4.5 and 8.0.
    ranges between 3.0 and 6.0.
    ranges between 8.0 and 9.0 for someone with a diet high in protein.

          

  3. aThe main parts of the juxtaglomerular apparatus are the:
    principal cells and macula densa.
    granular cells and macula densa.
    granular cells and intercalated cells.
    intercalated cells and principal cells.
    principal cells and granular cells.

          

  4. d
    This figure shows a frontal section of the kidney. Which number(s) indicate a renal papilla?
    2, 7
    3
    6
    9
    10

          

  5. dPlace the regions of the nephron in the correct order for the process of urine formation.
    a: Capsular space of glomerulus
    b: Nephron loop
    c: Collecting duct
    d: Distal convoluted tubule
    e: Proximal convoluted tubule
    a, c, b, e, d
    e, d, b, a, c
    b, e, c, d, a
    b, d, c, e, a
    a, e, b, d, c