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प्रश्न
The given diagram represents a nephron and its blood supply. Study the diagram and answer the following questions:
(i) Label parts 1, 2, 3 and 4.
(ii) State the reason for the high hydrostatic pressure in the glomerulus.
(iii) Name the blood vessel which contains the least amount of urea in this diagram.
(iv) Name the two main stages of urine formation.
(v) Name the part of the nephron which lies in the renal medulla.
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उत्तर
(i)
1 – Collecting duct
2 – Distal convoluted tubule (DCT)
3 – Descending limb of loop of Henle
4 – Bowman’s capsule
(ii) The diameter of efferent arteriole is narrower than the diameter of the afferent arteriole which builds the high hydrostatic pressure in the glomerulus.
(iii) Efferent arteriole
(iv) The two main stages of urine formation are ultrafiltration and tubular reabsorption.
(v) Henle’s loop and collecting tubules
संबंधित प्रश्न
Define excretion.
State whether the following statement is true or false:
Some organisms store wastes in body parts.
Describe the mechanism of urine formation in human excretory system. Draw a labelled diagram to illustrate your answer.
Define the following term:
Micturition
Complete the following sentence with appropriate words:
The outer surface of the kidney is ______ while the inner surface is ______.
State the Location: Medulla of Kidney
The number of ATP molecules required to produce one molecule of urea from the omithine cycle.
Two green plants are kept separately in oxygen-free containers, one in the dark and the other in continuous light. Which one will live longer? Give reasons.
Why is the rate of breathing in aquatic organisms much faster than in terrestrial organisms?
Given below is a list of substances - select the ones that need to be eliminated from the body.
Glucose, excess water, amino acids, urea, carbon dioxide, excess common salt, glycogen, uric acid.
