Biology-122-FINAL-(Chapters 36-42)

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Marine vertebrates are _____ to their environment.

Answer:
a)  isotonic
b)  hypotonic
c)  hypertonic
d)  osmotonic
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  • What is the function of the shark rectal gland?


    a)It is involved in osmoregulation.
    b)It is responsible for excretion of undigested residue.
    c)It secretes a hypotonic solution.
    d)It concentrates electrolytes necessary for homeostasis in a hypertonic environment.
    d)It concentrates electrolytes necessary for homeostasis in a hypertonic environment.
  • The force driving simple diffusion is _____ while the energy source for active transport is _____.


    a)the concentration gradient; ADP
    b)the concentration gradient; ATP
    c)transmembrane pumps; electron transport
    d)phosphorylated protein carriers; ATP
    b)phosphorylated protein carriers; ATP
  • Terrestrial organisms lose water through evaporation. In what ecosystem might an entomologist find a good study organism to examine the prevention of water loss?


    a)wet rain forest
    b)desert
    c)prairie
    d)chaparral
    b)chaparral
  • Which of the following affects the osmolarity of a solution?


    a)concentration of cations
    b)concentration of anions
    c)concentration of water
    d)all of the above
    d)all of the above
  • Reabsorption of water in the hindgut of insects is controlled by which of the following?


    a)osmotic gradients created by ion pumps
    b)selective absorptive processes that take place in the Malpighian tubules
    c)selective absorptive processes that take place in the hemolymph
    d)osmoregulators in the rectal gland
    a)osmoregulators in the rectal gland
  • The products of filtration in the renal corpuscle enter the renal tubule through which of the following structures?


    a)the proximal convoluted tubule
    b)the loop of Henle
    c)the collecting duct
    d)Bowman's capsule
    d)Bowman's capsule
  • For filtration to take place through the capillaries of the renal corpuscle, _____.


    a)concentration of ions must be greater in the capillaries (the glomerulus) than in the renal tubule
    b)there must be a greater pressure inside the glomerulus than in the renal tubules
    c)there must be a larger concentration of proteins in the renal tubule than in the glomerulus
    d)there must be more than one capillary bed in the renal corpuscle
    b)there must be more than one capillary bed in the renal corpuscle
  • The loop of Henle dips into the renal cortex. This is an important feature of osmoregulation in terrestrial vertebrates because _____.


    a)absorptive processes taking place in the loop of Henle are hormonally regulated
    b)differential permeabilities of ascending and descending limbs of the loop of Henle are important in establishing an osmotic gradient
    c)the loop of Henle plays an important role in detoxification
    d)additional filtration takes place along the loop of Henle
    b)additional filtration takes place along the loop of Henle
  • Malpighian tubules form pre-urine, which is further processed by which of the following anatomical structures?


    a)hindgut
    b)hemolymph
    c)rectal gland
    d)spiracles
    a)spiracles
  • Why are the renal artery and renal vein critical to the process of osmoregulation in vertebrates?


    a)The kidneys require constant and abnormally high oxygen supply to function.
    b)The renal artery delivers blood with nitrogenous waste to the kidney and the renal vein brings blood with less nitrogenous wastes away from the kidneys.
    c)The kidneys require higher than normal levels of hormones.
    d)None of the above are true.
    b)None of the above are true.
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Biology 122 FINAL  Chapters 36 42
Biology-122-FINAL-(Chapters 36-42)
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Free Quiz Question From Biology-122-FINAL-(Chapters 36-42)
Question: Marine vertebrates are _____ to their environment.
Answer:
isotonic
hypotonic
hypertonic
osmotonic