GMS 6440 Review questions with |\ |\ |\ |\ |\
answers
Our body secretes about 8L of intestinal juices into the GI tract
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
daily, but only _________ mL of water is excreted in feces. -
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CORRECT ANSWERS ✔✔100 mL (the rest is reabsorbed by the
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digestive system) |\
How many lobes are found in the lungs? - CORRECT ANSWERS
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✔✔There are 3 lobes in the right lung, while the smaller left lung
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has 2 lobes, making space in the chest cavity for the heart.
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Filtrate produced by the glomerulus of the nephron will flow
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through the nephron tubules in what order? - CORRECT ANSWERS
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✔✔Bowman's capsule --> proximal tubule --> loop of Henle -->
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distal tubule --> collecting duct.
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What chemical component of the plasma membrane prevents
|\ |\ |\ |\ |\ |\ |\ |\
ions from readily and freely moving across the membrane? -
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CORRECT ANSWERS ✔✔Lipids (phospholipids) |\ |\ |\
Where is the concentration of [K+] greater: the ICF or the ECF? -
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CORRECT ANSWERS ✔✔ICF; K+ is largely an intracellular ion.
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Across a cell's plasma membrane, movement of water is
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(passive/active) and (simple/facilitated). - CORRECT ANSWERS |\ |\ |\ |\ |\ |\
✔✔passive (by osmosis), facilitated (through a channel)
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, Where is the concentration of [Na+] greater: ICF or ECF? -
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CORRECT ANSWERS ✔✔ECF; Na+ is largely an extracellular ion.
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Describe secondary active transport of glucose. - CORRECT
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ANSWERS ✔✔Glucose is moved into the cell, against its
|\ |\ |\ |\ |\ |\ |\ |\ |\
concentration gradient, by symport with Na+ (through the |\ |\ |\ |\ |\ |\ |\ |\
sodium-glucose cotransporter.) |\
This is secondary active transport, and relies on the Na+ gradient
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
being favorable due to actions of other ATPases.
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The movement of a charged electrolyte across the cell
|\ |\ |\ |\ |\ |\ |\ |\ |\
membrane is determined by ______________________,
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_______________________, and _______________. - CORRECT |\ |\ |\ |\ |\
ANSWERS ✔✔concentration gradient (or chemical potential)
|\ |\ |\ |\ |\ |\
voltage (or electric potential)
|\ |\ |\ |\
permeability
Which ion and channel is primarily responsible for establishing a
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
typical cell membrane's "resting" potential? - CORRECT ANSWERS
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✔✔K+, via the potassium "leak" channel
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True or False: Excessive extracellular acid (i.e., [H+] ) will raise
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
the concentration of extracellular potassium ion concentration. -
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CORRECT ANSWERS ✔✔True. H+/K+-exchange pumps uptake H+
|\ |\ |\ |\ |\ |\
into cells to preserve blood pH, causing hyperkalemia in plasma.
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answers
Our body secretes about 8L of intestinal juices into the GI tract
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
daily, but only _________ mL of water is excreted in feces. -
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
CORRECT ANSWERS ✔✔100 mL (the rest is reabsorbed by the
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
digestive system) |\
How many lobes are found in the lungs? - CORRECT ANSWERS
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
✔✔There are 3 lobes in the right lung, while the smaller left lung
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
has 2 lobes, making space in the chest cavity for the heart.
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
Filtrate produced by the glomerulus of the nephron will flow
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
through the nephron tubules in what order? - CORRECT ANSWERS
|\ |\ |\ |\ |\ |\ |\ |\ |\
✔✔Bowman's capsule --> proximal tubule --> loop of Henle -->
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
distal tubule --> collecting duct.
|\ |\ |\ |\
What chemical component of the plasma membrane prevents
|\ |\ |\ |\ |\ |\ |\ |\
ions from readily and freely moving across the membrane? -
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
CORRECT ANSWERS ✔✔Lipids (phospholipids) |\ |\ |\
Where is the concentration of [K+] greater: the ICF or the ECF? -
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
CORRECT ANSWERS ✔✔ICF; K+ is largely an intracellular ion.
|\ |\ |\ |\ |\ |\ |\ |\
Across a cell's plasma membrane, movement of water is
|\ |\ |\ |\ |\ |\ |\ |\ |\
(passive/active) and (simple/facilitated). - CORRECT ANSWERS |\ |\ |\ |\ |\ |\
✔✔passive (by osmosis), facilitated (through a channel)
|\ |\ |\ |\ |\ |\
, Where is the concentration of [Na+] greater: ICF or ECF? -
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
CORRECT ANSWERS ✔✔ECF; Na+ is largely an extracellular ion.
|\ |\ |\ |\ |\ |\ |\ |\
Describe secondary active transport of glucose. - CORRECT
|\ |\ |\ |\ |\ |\ |\ |\
ANSWERS ✔✔Glucose is moved into the cell, against its
|\ |\ |\ |\ |\ |\ |\ |\ |\
concentration gradient, by symport with Na+ (through the |\ |\ |\ |\ |\ |\ |\ |\
sodium-glucose cotransporter.) |\
This is secondary active transport, and relies on the Na+ gradient
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
being favorable due to actions of other ATPases.
|\ |\ |\ |\ |\ |\ |\ |\
The movement of a charged electrolyte across the cell
|\ |\ |\ |\ |\ |\ |\ |\ |\
membrane is determined by ______________________,
|\ |\ |\ |\ |\
_______________________, and _______________. - CORRECT |\ |\ |\ |\ |\
ANSWERS ✔✔concentration gradient (or chemical potential)
|\ |\ |\ |\ |\ |\
voltage (or electric potential)
|\ |\ |\ |\
permeability
Which ion and channel is primarily responsible for establishing a
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
typical cell membrane's "resting" potential? - CORRECT ANSWERS
|\ |\ |\ |\ |\ |\ |\
✔✔K+, via the potassium "leak" channel
|\ |\ |\ |\ |\ |\
True or False: Excessive extracellular acid (i.e., [H+] ) will raise
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
the concentration of extracellular potassium ion concentration. -
|\ |\ |\ |\ |\ |\ |\ |\
CORRECT ANSWERS ✔✔True. H+/K+-exchange pumps uptake H+
|\ |\ |\ |\ |\ |\
into cells to preserve blood pH, causing hyperkalemia in plasma.
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
