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प्रश्न
The composition of glomerular filtrate and urine is not same. Comment.
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उत्तर
The composition of glomerular filtrate and urine is not the same because glomerular filtrate contains water, glucose, amino acids, salts, urea, and other small molecules, whereas urine mainly contains water, urea, uric acid, and salts. During the process of urine formation, useful substances like glucose, amino acids, and most water are reabsorbed into the blood, and additional wastes are secreted into the tubule. Therefore, the final urine is more concentrated and contains only waste products, making its composition different from glomerular filtrate.
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संबंधित प्रश्न
What is meant by the term osmoregulation?
Glucose is taken back from glomerular filtrate ___________
(A) along with concentration gradient
(B) against concentration gradient
(C) by simple diffusion
(D) by tubular secretion
Put a tick mark (✓) against the most appropriate alternative in the following statement :
Besides water, the urine mainly contains :
Where in the urinary system do the following processes take place?
- Urine formation: ______.
- Transport of urine away from kidney: ______.
- Temporary storage of urine: ______.
What is meant by osmoregulation?
Fill in the blank.
When air is humid, the rate of transpiration is ..................
Give the working of the nephron.
Give Reasons for the following:
As a result of ultrafiltration along with excretory products certain useful products like glucose, salt, etc. are also filtered but these are not excreted?
Choose the correct option.
Tubular secretion does not take place in ______.
Answer the following question.
Effective filtration pressure was calculated to be 20 mmHg; where glomerular hydrostatic pressure was 70 mm of Hg. Which other pressure is affecting the filtration process? How much is it?
What is micturition?
Identify the biological term
A ball of inter twined capillaries.
Identify the biological term
Consists of the kidneys, ureters and bladder.
Identify the biological term
Removal of useful substances from glomerular filtrate.
Na+ excretion in the urine is reduced by secretion of ______
Proximal convoluted tubule differs from distal convoluted tubule being lined by ______
Which part of the nephron allows the selective reabsorption of useful substances like glucose, amino acids, salts and water into the blood capillaries?
Filtration of the blood takes place at ______.
Name the following:
Three stages of urine formation.
