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प्रश्न
The organs which extract the nitrogenous wastes from the blood are ______.
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उत्तर
The organs which extract the nitrogenous wastes from the blood are kidneys.
Explanation:
The kidneys act as the primary filtration system of the human body. They contain millions of microscopic filtering units called nephrons that continuously strain the blood, extracting harmful nitrogenous waste products like urea and excess salts to form urine for excretion.
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संबंधित प्रश्न
Describe the structure of nephrons.
Match structures given in Column I with functions given in Column II.
| Column I | Column II | ||
| (i) | Stomata | (a) | Absorption of water |
| (ii) | Xylem | (b) | Transpiration |
| (iii) | Root hairs | (c) | Transport of food |
| (iv) | Phloem | (d) | Transport of water |
| (e) | Synthesis of carbohydrates |
Give biological reasons for the following statements: There is frequent urination in winter than in summer
Give the biological/technical terms for the following:
The hormone increasing reabsorption of water by kidney tubules.
Name the two waste products of the human body which are produced in the body cells.
Why do some people need to use a dialysis machine? What does the machine do?
A dialysis machine contains long tubes coiled in a tank containing dialysing solution:
Of what substance are the tubes made?
A dialysis machine contains long tubes coiled in a tank containing dialysing solution:
What does the dialysing solution contain?
Describe the mechanism of urine formation in human excretory system. Draw a labelled diagram to illustrate your answer.
Fill in the blank.
Malpighian body consists of Bowman’s capsule and .....................
Answer the following in short.
What is excretion?
Answer the following in detail.
Describe the process of urine formation.
Name the following:
The outer region of kidney containing the Bowman's capsule.
The following diagram represents a mammalian kidney tubule (nephron) and its blood supply.
Parts indicated by the guidelines 1 to 8 are as follows:
1. Afferent arteriole from renal artery
2. efferent arteriole
3. Bowman’s capsule
4. Glomerulus;
5. Proximal convoluted tubule with blood capillaries;
6. Distal convoluted tubule with blood capillaries;
7. collecting tubule;
8. U-shaped loop of Henle
Study the diagram and answer the question that follow:
Where does ultrafiltration take place?
Explain in your own words with suitable examples.
How is excretion in plants useful to human beings?
Explain the Term: Ureter
Name the Following
The branch of renal artery which enters into Bowman’s capsule.
Choose the Odd One Out:
Complete the diagram/chart with correct labels/ information. Write the conceptual details regarding it.
An organ that produces urea:
