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Solution
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.
RELATED QUESTIONS
Fill in the blank :
The unit of human kidney is called .....................
Name the following:
Organ where ultrafiltration occurs.
Choose the correct option.
Tubular secretion does not take place in ______.
Aldosterone acts at the distal convoluted tubule and collecting duct resulting in the absorption of water through ______.
Identify the biological term
A liquid which gathers in the bladder.
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Minimum reabsorption occurs in ______.
The following substances are the excretory products in animals. Choose the least toxic form among them?
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glucose, amino acids, nitrogenous wastes, Na+, water
Name the substances other than water, that are reabsorbed during urine formation. What are the two parameters that decide the amount of water that is reabsorbed in the kidney?
