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उत्तर
In a nephron, the blood .enters by afferent arteriole and is filtered through the glomerulus. The filtrate is passed into the Bowman’s capsule; by the process called ultrafiltration. The filtrate contains useful products like glucose, amino acids, salts, etc. The plasma proteins, blood corpuscles, and platelets are retained in the glomerular mass. The filtrate now passes through Henle’s loop where selective reabsorption of useful products takes place but urea and uric acid are not absorbed. Now the excretory substances are secreted by proximal and distal convoluted tubule and urine is formed.
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संबंधित प्रश्न
Fill in the blank :
The unit of human kidney is called .....................
Fill in the blank :
Evaporation of sweat from the skin surface has ............... effect.
Fill in the blank.
When air is humid, the rate of transpiration is ..................
What is micturition?
Glomerular filtrate contains ______.
Aldosterone acts at the distal convoluted tubule and collecting duct resulting in the absorption of water through ______.
Identify the biological term
Produced when blood is filtered in a Bowman’s capsule.
How is urea formed in the human body?
The osmotic pressure of blood that opposes ultrafiltration is about ______ mm Hg.
The composition of glomerular filtrate and urine is not same. Comment.
