Advertisements
Advertisements
प्रश्न
We can produce a concentrated/ dilute urine. This is facilitated by a special mechanism. Identify the mechanism.
विकल्प
Reabsorption from PCT
Reabsorption from Collecting Duct
Reabsorption/Secretion in DCT
Counter current mechanism in Henle’s loop/Vasa recta
Advertisements
उत्तर
Counter current mechanism in Henle’s loop/Vasa recta
Explanation:
Counter current mechanism operates between the two limbs of the loop of Henle and those of vasa recta. The filtrate becomes concentrated when it moves down the descending limb but is diluted by the ascending limb.
APPEARS IN
संबंधित प्रश्न
Protein-free fluid is filtered from blood plasma into the Bowman’s capsule.
Give significance of podocyte
Fill in the blank.
.................. carries urine from the kidney to the urinary bladder.
Find the odd one out. Give a reason for your choice.
tannin, urine, latex, resin
Answer the following in detail.
How do skin and lungs help in excretion?
Name the main nitrogenous metabolic waste excreted out by mammals including humans.
Name the following:
Animals which eliminate urea.
Name the following:
Organ which stores urine.
What is osmoregulation?
Explain the Term: Tubular reabsorption
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
Urine leaves the urinary bladder of a female by means of the uterus.
Answer the following question.
Why are kidneys called 'retroperitoneal'?
Identify the CORRECT statement.
Which are the two main organic wastes present in urine?
Name the process and the organ which helps in removing the following wastes from the body.
- Carbon dioxide
- Undigested food
- Urine
- Sweat
Erythropoietin hormone which stimulates R.B.C. formation is produced by ______.
Where does the selective reabsorption of Glomerular filtrate take place?
Match Column I with Column II.
| Column I | Column II |
| A. PCT | (i) Concentrated urine formation |
| B. DCT | (ii) Filtration of blood |
| C. Loop of Henle | (iii) Reabsorption of 70-80% of the electrolyte |
| D. Counter current mechanism | (iv) Ionic balance |
| E. Renal corpuscle | (v) Maintenance of concentration gradient in medulla |
Select the correct option from the codes given below.
Which blood vessel has largest amount of urea?
Define the following term:
Kidney
