EASY
Earn 100
The correct sequence of processes involved in urine formation is
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Important Questions on Excretory Products and Their Elimination
EASY
The Bowman's capsule, a part of the kidney is the site of:
HARD
Explain the mechanism of ultrafiltration in urine formation.
MEDIUM
Describe the Excretory system of man giving the structure of a Nephron.
EASY
Human urine is usually acidic because ?
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Why formation of urine and its elimination is necessary in humans?
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Match the items given in Column I with those in Column II and select the correct option given below:
| Column – I | Column – II (Part | ||
| Function | Part of Excretory System) | ||
| a. | Ultrafiltration | i. | Henle’s loop |
| b. | Concentration of urine | ii. | Ureter |
| c. | Transport of urine | iii. | Urinary bladder |
| d. | Storage of urine | iv. | Malpighian corpuscle |
| v. | Proximal convoluted tubule |
HARD
Explain the mechanism of glomerular filtration in urine formation
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Which of the following would help in the prevention of diuresis?
MEDIUM
The volume of glomerular filtrate produced in one minute is:
MEDIUM
In the given diagram of urine formation, which process occurs in X and Y?
MEDIUM
Which of the following does not favor the formation of large quantities of dilute urine?
HARD
Match the following ?
| List I | List II | List III | |||
| (i) | High threshold substances | (a) | Not at all reabsorbed | (p) | Creatinine |
| (ii) | Low threshold substances | (b) | Efficiently reabsorbed | (q) | Glucose |
| (iii) | Athreshold substances | (c) | Reabsorbed in very little amounts | (r) | Urea |
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A decrease in blood pressure/volume will not cause the release of
EASY
Descending limb of Henle allows the reabsorption of:
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Which of the following factors is responsible for the formation of concentrated urine?
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Renin is secreted when blood pressure in
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The increase in osmolarity from outer to inner medullary interstitium is maintained due to :
(i) Close proximity between Henle's loop and vasa recta
(ii) Counter current mechanism
(iii) Selective secretion of and hydrogen ions in
(iv) Higher blood pressure in glomerular capillaries
MEDIUM
Discuss the statement: Countercurrent mechanism in Vasa recta helps in maintaining concentration gradient in the renal medulla.
EASY
Identify the part of the nephron that is impermeable to water
MEDIUM
The glomerular filtration rate is NOT affected by
