Biology 172 Quiz 13: Osmoregulation and Excretion

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Biology 172 Quiz 13: Osmoregulation and Excretion
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2013-12-17 03:18:42
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Biology 172 Quiz 13 Osmoregulation Excretion
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Biology 172 Quiz 13: Osmoregulation and Excretion
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  1. Why is the respiratory system of a bird more efficient than the human respiratory system? 
    A.The internal spaces of the human respiratory system does not provide much surface area for gas exchange.
    B.The flow-through anatomy of the bird respiratory system does not mix exhaled air with inhaled air. 
    C.The bird respiratory system consists of a counter-current arrangement of airflow and blood across and through its gill filaments. 
    D.The human respiratory system ends in small parabronchi, which reduce the amount of surface area available for gas exchange.
    E.A bird lung contains multiple alveoli, which increases the amount of surface area available for gas exchange. 
    B.The flow-through anatomy of the bird respiratory system does not mix exhaled air with inhaled air.
    (this multiple choice question has been scrambled)
  2. Which type of epithelial tissues form the lining of the air sacs of the lungs where gas exchange takes place? 
    A.stratified squamous 
    B.simple squamous 
    C.simple columnar 
    D.adipose
    E.cuboidal
    B.simple squamous
    (this multiple choice question has been scrambled)
  3. The Bohr shift on the oxygen-hemoglobin dissociation curve is produced by changes in 
    A.hemoglobin concentration
    B.the partial pressure of carbon monoxide 
    C.pH 
    D.temperature
    E.the partial pressure of oxygen 
    C.pH
    (this multiple choice question has been scrambled)
  4. How is most carbon dioxide carried by the blood? 
    A.attached to hemoglobin 
    B.dissolved carbon dioxide in the plasma
    C.as carbon monoxide
    D.dissolved carbon dioxide in red blood cells 
    E.as bicarbonate ion (HCO3-) 
    E.as bicarbonate ion (HCO3-)
    (this multiple choice question has been scrambled)
  5. Countercurrent exchange in the fish gill helps to maximize 
    A.blood pressure
    B.diffusion 
    C.active transport 
    D.osmosis 
    E.endocytosis
    B.diffusion
    (this multiple choice question has been scrambled)
  6. Air rushes into the lungs of humans during inhalation because 
    A.pressure in the alveoli increases 
    B.gas flows from a region of lower pressure to a region of higher pressure 
    C.pulmonary muscles contract and pull on the outer surface of the lungs
    D.the rib muscles and diaphragm contract, increasing the lung volume 
    E.a positive respiratory pressure is created when the diaphragm relaxes
    D.the rib muscles and diaphragm contract, increasing the lung volume
    (this multiple choice question has been scrambled)
  7. A respiratory adaptation of marine mammals that allows them to dive deeply for extended periods of time is 
    A.increasing the heart rate 
    B.breathing through gills 
    C.abundant myoglobin in blood plasma
    D.low tolerance for carbon dioxide build up in the tissues
    E.allowing the lungs to collapse 
    E.allowing the lungs to collapse
    (this multiple choice question has been scrambled)
  8. A marine bony fish 
    A.avoids drinking water 
    B.excretes a hypertonic urine
    C.actively absorbs salts
    D.is an osmoconformer 
    E.accumulates urea 
    B.excretes a hypertonic urine
    (this multiple choice question has been scrambled)
  9. Birds and reptiles excrete ______ as their principal excretory waste. 
    A.uric acid 
    B.ammonia
    C.amino acids 
    D.urea 
    E.guanine
    A.uric acid
    (this multiple choice question has been scrambled)
  10. The structure that creates a solute concentration gradient within the renal pyramid of the human kidney is the 
    A.distal convoluted tubule 
    B.renal cortex
    C.proximal convoluted tubule 
    D.loop of Henle 
    E.collecting duct
    D.loop of Henle
    (this multiple choice question has been scrambled)
  11. What substance is secreted by the proximal-tubule cells of the human nephron and prevents the pH of urine from becoming too acidic? 
    A.ammonia 
    B.bicarbonate 
    C.salt 
    D.glucose
    E.HCl
    A.ammonia
    (this multiple choice question has been scrambled)
  12. Antidiuretic hormone (ADH) concentrates the urine by 
    A.inhibiting sodium reabsorption by the distal convoluted tubule 
    B.stimulating the secretion of urea by the glomerulus
    C.increasing the permeability of the collecting duct walls to water 
    D.raising the body temperature leading to evaporative water loss 
    E.turning the loop of Henle into a countercurrent multiplier
    C.increasing the permeability of the collecting duct walls to water
    (this multiple choice question has been scrambled)
  13. In the mammalian kidney, a hyperosmotic urine is produced 
    A.after osmoregulatory cells in the hypothalamus release a hormone in response to a high blood osmolarity 
    B.as a consequence of a concentration gradient established within the renal pyramids
    C.because the walls of the collecting ducts become permeable to water 
    D.all of these
    E.when antidiuretic hormone is discharged into the blood stream 
    D.all of these
    (this multiple choice question has been scrambled)
  14. Organisms categorized as osmoconformers are most likely 
    A.found in freshwater streams
    B.marine 
    C.found in freshwater lakes 
    D.terrestrial
    E.amphibious 
    B.marine
    (this multiple choice question has been scrambled)
  15. The juxtaglomerular apparatus 
    A.all of these
    B.causes copious hypoosmotic urine production when stimulated 
    C.secretes the hormone aldosterone 
    D.is located in the renal pelvis
    E.is stimulated by a decrease in blood pressure or blood volume 
    E.is stimulated by a decrease in blood pressure or blood volume
    (this multiple choice question has been scrambled)

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