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प्रश्न
The diagram below represents a mammalian kidney tubule (nephron) and its blood supply. Parts indicated by the guidelines 1 to 8 are as follows:
1. U-shaped loop of Henle
2. Proximal convoluted tubule with blood capillaries
3. Bowman’s capsule
4. Afferent arteriole from the renal artery
5. Glomerulus
6. Venule to the renal vein
7. Collecting tubule
8. Distal convoluted tubule with blood capillaries Study the diagram and answer the following questions in each case:
(i) Where does ultrafiltration take place?
(ii) Which structure contains the lowest concentration of urea?
(iii) Which structure contains the highest concentration of urea?
(iv) Which structure contains the lowest concentration of glucose?
(v) Where is the most water reabsorbed?
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उत्तर
(i) 3. Bowman’s capsule.
(ii) 6. Renal vein.
(iii) 8. Distal convoluted tubule with blood capillaries.
(iv) 7. Collecting tubule.
(v) 2. Proximal convoluted tubule with blood capillaries.
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संबंधित प्रश्न
The diagram given below is that of a structure present in a human kidney.
Study the same and answer the questions that follow:
1) Name the structure represented in the diagram
2) What is the liquid entering part ‘1’ called?
Name two substances present in this liquid that are reabsorbed in the tubule.
3) What is the fluid that comes to part ‘2’ called?
Name the main nitrogenous waste in it.
4) Mention the three main steps involved in the formation of the fluid mentioned in (iii) above
5) Name the substance which may be present in the fluid in part ‘2’ if a person suffers from Diabetes mellitus.
Fill in the following blank with suitable word:
The organs which extract the nitrogenous wastes from the blood are ..........
Tick the most appropriate answer.
Quinine is used in the treatment of
Answer the following in short.
Define transpiration in plants.
Answer the following in detail.
Explain the process of transpiration. Describe some factors that affect it.
Choose the correct answer:
The smallest functional unit of the kidney is ____________
Choose the correct answer:
Narrow apex of pyramid in kidney is called ___________
Differentiate between:
The Renal artery and the Renal vein.
What would happen if green plants disappeared from earth?
The main nitrogenous waste formed in the human body:
