Assertion (A): The urinary bladder stretches as urine collects.
Reason (R): The urinary bladder is lined by transitional epithelium.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.

Subtopic:  Micturition Reflex |
 67%
Level 2: 60%+
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Assertion (A): There is effective filtration pressure development in glomerulus.
Reason (R) Afferent arteriole is slightly wider than the efferent arteriole.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Subtopic:  Formation of Urine: Ultrafiltration |
 68%
Level 2: 60%+
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Assertion (A): The descending limb of Henle's loop contain hypertonic urine  and ascending Henle's loop urine becomes hypotonic.
Reason (R): The descending Henle's loop is impermeable to Na+ and ascending Henle's loop is impermeable to water.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
 
Subtopic:  Formation of Urine | Concentration of Urine |
 83%
Level 1: 80%+
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Assertion (A): Diabetes insipidus is marked by excessive urination and too much thirst for water.
Reason (R): ADH is secreted by the posterior lobe of pituitary gland.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Subtopic:  Disorders of Excretory System |
 74%
Level 2: 60%+
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Assertion (A): Glomerular filtration is an active transport.
Reason (R): Osmolarity of blood is 1200 mOsmol L-1.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Subtopic:  Formation of Urine |
 56%
Level 3: 35%-60%
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Assertion (A): Glucose and amino acids in the filtrate are reabsorbed by tubular epithelial cells by active transport.
Reason (R): Glucose and amino acids are reabsorbed by sodium coupled transport in PCT.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Subtopic:  Concentration of Urine |
 53%
Level 3: 35%-60%
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Assertion (A) Bilirubin is the exretory product of liver.
Reason (R): It is a byproduct of old RBCs.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Subtopic:  Role of other Organs in Excretion |
 52%
Level 3: 35%-60%
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Assertion (A): The presence of ketone bodies and glucose is indicative of diabetes mellitus.
Reason (R): Polyketonuria is the presence of excess ketone bodies in urine.

1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
 
Subtopic:  Disorders of Excretory System |
 75%
Level 2: 60%+
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Assertion (A): The kangaroo rat can live in desert without drinking water.
Reason (R): They produce hypertonic urine and depend on metabolic water.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Subtopic:  Osmoregulation |
 86%
Level 1: 80%+
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Assertion (A): Kidneys play a very important role in maintaining constant composition of blood irrespective of the nature of the food/fluid intake.
Reason (R): Kidney is an osmoregulator.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Subtopic:  Human Kidney: Functions | Human Kidney: Location & Cut Section |
Level 4: Below 35%
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