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Assertion :- In PCT all of the essential...

Assertion `:-` In PCT all of the essential nutrient and 70-80 percent of electrolytes and water are reabsorbed.
Reason `:-` PCT is lined by simple cuboidal brush border epithelium which increases the surface , are for reabsorption.

A

If both assertion and reason are true and reason is the correct explanation of assertion

B

If both assertion and reason are true but reason is not the correct explanation of assertion.

C

If assertion is true but reason is false.

D

If both assertion and reason are false.

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The correct Answer is:
A
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Nearly all of the essential nutrients, and 70-80% of electrolytes and water are reabsorbed in the

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PCT is lined by brush-bordered columnar epithelium . Why ?

Consider the following four statements (i-iv) and select the option that correctly identifies the true (T) and false (F) ones. (i). Atrial natriuretic factor can cause vasodilation (dilation of blood vessels) and thereby decreases the blood pressure. (ii). On an average, 60-70 gm of urea is excreted out per day. (iii). Sebaceous glands eliminate certain substances like NaCl, urea and lactic acid through sebum. (iv). PCT is lined by simple cuboidal brush border epithelium which increases the surface area for reabsorption.

Which of theses statements about proximal convoluted tubule is/are true? I. it is lined by simple columnar brush border epithelium which increases the surface area for reabsorption. II Nearly all of the essential nutrients and 70%-80% of electrolytes and water are reabsorbed by this segment. III. It selectively secretes hydrogen ions, ammonia and potassium ions into the filtrate. IV. It is the most convoluted part of the nephron and is present in the medullary region of the kidney.

Read the following functions and identify the part of nephron responsible for it. A. Nearly all of the essential nutrient and 70-80% of electroytes and water are reabsorbed by this segement. B. Conditional reabsorption of Na^(+) and water takes place in this segement. C. Large amounts of water could be reabsorbed from this region to produce concentrated urine.

Assertion :- Nearly 99 percent of the filtrate has to be reabsorbed by the renal tubules. Reason :- Glucose is reabsorbed by active mechanism is PCT.

What is the fuction of brush-bordered cuboidal epithelium in PCT of nephron?

MOTION-EXCRETORY PRODUCTS AND THEIR ELIMINATION-EXERCISE - 4 AIIMS - Assertion & Reason Questions
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  4. Assertion :- When filtrate pass through descending limb of loop of Hen...

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  5. Assertion :- Conditional reabsorption of Na^(o+) and water takes place...

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  6. Assertion :- Mammals have the ability to produce a concentrated urine....

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  7. Assertion :- An increase in glomerular blood pressure can activate the...

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  8. Assertion :- An increase in body fluid volume activate osmoreceptors ,...

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  9. Assertion :- Angiotensin II, activates the adrenall cortex to release ...

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  10. Assertion :- Nearly 99 percent of the filtrate has to be reabsorbed by...

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  11. Assertion :- The primary function of sweat is to facilitate a cooling ...

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  12. Assertion :- The descending limb of loop of Henle is permeable to wate...

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  13. Assertion :- In cortical nephrone, the loop of Henle is too short and ...

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  14. Assertion :- ADH prevents diuresis. Reason :- ADH also affect the ki...

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  15. Assertion :- The JGA plays a complex regulaltory role. Reason :- An...

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  16. Assertion :- Angiotensin II is a powerful vasconstrictor Reason :- A...

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  17. Assertion :- An increase in blood flow to the atria of heart can caus...

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  18. Assertion :- Feedback mechanism for regulartion of kidney involve hypo...

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  19. Assertion :- Analysis of urine helps in clinical diagnosis of many met...

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  20. Assertion :- Haemodialysis method is used in case of kidney failure. ...

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