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Questions and Answers
Which mechanism involves changing the proportion of passive reabsorption in different tubular segments?
Which mechanism involves changing the proportion of passive reabsorption in different tubular segments?
- Dissociating glomerular filtration rate from renal blood flow
- Altering the back-leak permeability of the tubule
- Changing the coupling ratio of ATP generated to O2 consumed
- Shifting transport between tubular segments (correct)
What is the outcome of dissociating glomerular filtration rate from renal blood flow?
What is the outcome of dissociating glomerular filtration rate from renal blood flow?
- Increased ATP generated per O2 consumed
- Decreased O2 consumption per Na+ reabsorbed
- Unchanged O2 consumption per Na+ reabsorbed (correct)
- Increased O2 consumption per Na+ reabsorbed
Which mechanism does not directly affect Na+ reabsorption?
Which mechanism does not directly affect Na+ reabsorption?
- Altering the back-leak permeability of the tubule
- Changing the coupling ratio of ATP generated to O2 consumed (correct)
- Shifting transport between tubular segments
- Dissociating glomerular filtration rate from renal blood flow
What is the primary effect of altering back-leak permeability of the tubule?
What is the primary effect of altering back-leak permeability of the tubule?
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Which mechanism has a direct impact on the energy efficiency of Na+ reabsorption?
Which mechanism has a direct impact on the energy efficiency of Na+ reabsorption?
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Study Notes
Mechanisms for Changing Oxygen Consumption per Work Performed
- Dissociating glomerular filtration rate from renal blood flow is a mechanism to change the amount of oxygen consumed per work performed.
- Altering the amount of oxygen consumed per sodium reabsorbed is another mechanism to modify oxygen consumption.
- Shifting transport between tubular segments that make more or less use of passive reabsorption is a mechanism to change oxygen consumption.
- Altering back-leak permeability of the tubule is a way to modify oxygen consumption.
- Changing the coupling ratio of adenosine triphosphate generated to oxygen consumed by mitochondria is a mechanism to change oxygen consumption per work performed.
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Description
Test your knowledge of renal physiology mechanisms, including reabsorption, filtration, and blood flow. This quiz covers various aspects of kidney function and their effects on the body.
