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Which part of the nephron allows reabsorption of a small amount of urea into the medullary interstitium?

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Important Questions on Excretory Products and Their Elimination

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Biology Crash Course NEET>Chapter 19 - Excretory Products and Their Elimination>Level 1>Q 80
Find the incorrect pair.
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Biology Crash Course NEET>Chapter 19 - Excretory Products and Their Elimination>Level 1>Q 81
Which of the following glands does not help in excretion?
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Biology Crash Course NEET>Chapter 19 - Excretory Products and Their Elimination>Level 1>Q 82
Figure shows human urinary system with structures labelled A to D. Select option which correctly identifies them and give their characteristics and/or functions

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Biology Crash Course NEET>Chapter 19 - Excretory Products and Their Elimination>Level 1>Q 83
Find the incorrect statement regarding the mechanism of urine formation:
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Biology Crash Course NEET>Chapter 19 - Excretory Products and Their Elimination>Level 1>Q 84
The substances that are efficiently reabsorbed in the nephron are called high threshold substances. All of the following are high threshold substances except:
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Biology Crash Course NEET>Chapter 19 - Excretory Products and Their Elimination>Level 1>Q 85
Tiny functional unit of kidney are called
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Biology Crash Course NEET>Chapter 19 - Excretory Products and Their Elimination>Level 1>Q 86
The descending limb of Henle's loop is
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Biology Crash Course NEET>Chapter 19 - Excretory Products and Their Elimination>Level 1>Q 87
Column of Bertini are