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The nephron is a hollow, convoluted tube...

The nephron is a hollow, convoluted tube of cells. It is engineered to concentrate urine by removing water at which of the following sites?
I. Proximal convoluted tubule
II. Descending limb of the loop of Henle
III. Ascending limb of the loop of Henle

A

I only

B

II only

C

I and II only

D

I, II and III

Text Solution

Verified by Experts

The correct Answer is:
C
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Explore conceptually related problems

Write one function each of Glomerulus, Proximal Convoluted Tubule and Henle's loop of a nephron .

Assertion A: The renal fluid becomes increasingly concentrated when it flows down in the descending limb of loop of Henle towards the inner medulla but its concentration decreases in the ascending limb when it flows towards the cortex Reason R: The descending limb of the loop of Henle reabsorbs water, the ascending limb is impermeable to water but salts are reabsorbed

Assertion : In the descending limb of loop of Henle , the urine is hypertonic , while in ascending limb of loop of Henle , the urine is Hypotonic . Reason : Descending limb is impermeable to Na' while ascending limb is impermeable to H_(2)O

Read the following statements and select the correct option Statement 1 : When the urine moves through the descending limb, it becomes hypertonic to blood plasma and as it passes through the ascending limb of Henl's loop it becomes hypotonic to blood plasma Statement 2 : The decending limb is permeable to sodium ions, while the ascending limb is impermeable to sodium ions

Indicate whether the following statements are true or fals: (a) Micturition is carried out by a reflex. (b) ADH helps in water elimination, making the urine hypotonic. (c) protein free fluid is filtered from blood plasma into the Bowman's capsule, (d) henle's loop plays an important rule in concentrating the urine. (e) Glucose is actively reabsorbed in the capsule. proximal convoluted tubule.

Read the following statement and choose the correct option I. Asceding limb of Henle's loop is permeable to water II. Tubular cells secrete substance like H^(+), K^(+) and ammonia into filtrate III. There is maximum reabsorption in Henle's loop IV. Conditional reabsorption of Na^(+) occurs in DCT V. PCT helps in maintaining ionic balance of body fluids

Which of the following statements are correct? (i). Glucose has high threshold value. (ii). Urine is concentrated in Henle's loop (iii). Haemodialyser removes urea, uric acid, glucose and plasma proteins (iv). In glomerulus, urea, uric acid, water, glucose and plasma proteins are filtered out.

The correct match is I. DCT - Secretion of H^(+) and K^(+) ions II. Henle's loop -Reabsorption of glucose, water and Na^(+) ions III. Podocytes - Attached to parietal layer of Bowman's capsule IV. JGA - Rise in glomerular blood pressure activates it to release renin.

Match the items given in Column I with those in Column II and select the correct option below {:("","Column I",,"Column II"),(,"(Function)" ,,"(Part of Excretory System)"),((a),"Urine storage " ,(i),"Henle's loop "),((b),"Concentration of urine" ,(ii),"Ureter"),((c),"Transport of Urine" ,(iii),"Urinary Bladder"):}

TRUEMAN BIOLOGY-EXCRETORY PRODUCTS AND THEIR ELIMINATION-MULTIPLE CHOICE OUESTIONS
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  2. While doing some experiment with Amoeba proteus in a culture medium, i...

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  3. The nephron is a hollow, convoluted tube of cells. It is engineered to...

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  4. A substance is present in concentration of 2 mg % in the afferent arte...

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  5. NaCl is more in the interstitial fluid of renal medulla than of cortex...

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  6. Water from the two tanks shown in the diagram was tested 3 hours after...

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  7. Antidiuretic hormone has the most abundant receptors in the kidneys of

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  8. All of the following are true except

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  9. Which of the following statements is correct?

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  10. The pH of human urine is approximately

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  11. Which one of the following statements is incorrect?

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  12. Which of the following pairs is wrong ?

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  13. Which one of the following statements is incorrect

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  14. Match the terms given in Column I with their physiological processes g...

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  15. Match the abnormal conditions given in Col- umn A with their explanati...

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  16. Dialysing unit (artificial kidney) contains a fluid which is almost sa...

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  17. Which one of the following four secretions is correctly matched with i...

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  18. Which one of the following statements is correct with respect to salt ...

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  19. Find out the correct statement about the loop of Henle

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  20. A terrestrial animal must be able to

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