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Earn 100
Consider the following few statements (i)-(iv) and select the option that correctly identifies the true (T) and false (F) ones.
(i) Micturition is carried out by a reflex.
(ii) ADH helps in water elimination making, the urine hypotonic.
(iii) Protein-free fluid is filtered from blood plasma into the Bowman’s capsule.
(iv) Glucose is actively reabsorbed in the proximal convoluted tubule.
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Important Questions on Excretory Products and Their Elimination
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The outline of principal events of urination is given below in random manner.
(i) Stretch receptors on the wall of urinary bladder send signals to the CNS.
(ii) The bladder fills with urine and becomes distended.
(iii) Micturition.
(iv) CNS passes on motor messages to initiate the contraction of smooth muscles of bladder and simultaneous relaxation of urethral sphincter.
The correct sequence of the events is
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The yellow colour of urine is due to the presence of
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Which one of the following is correct for a normal human?
EASY
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Glycosuria is the condition where a man
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A person is undergoing prolonged fasting. His urine would contain abnormal quantities of
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A person who is not taking food or beverages will have.........in urine.
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Read the given statements regarding human excretory system and select the correct ones.
(i) Presence of glucose in urine is known as uremia.
(ii) Distal convoluted tubule (DCT) selectively secretes hydrogen ions, ammonia and potassium ions into the filtrate.
(iii) Macula densa is formed by cellular modifications in the distal convoluted tubule and the afferent arteriole at their contact location.
(iv) Atrial natriuretic factor (ANF) can cause vasoconstriction when blood flow is low to the atria of the heart.
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Match Column I with II and select the correct option from the codes given below.
| Column I | Column II | ||
|---|---|---|---|
| Lungs | Lactic acid | ||
| Liver | Hypertonic urine | ||
| Micturition | Counter-current system | ||
| Sweat | |||
| Vasa recta | Urinary bladder | ||
| Sebum | Glucose | ||
| ADH | Bilirubin | ||
| Tubular reabsorption | Sterols |
