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प्रश्न
Name the two waste products of the human body which are produced in the body cells.
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उत्तर
The two primary waste products produced directly within human body cells during metabolism are carbon dioxide (CO2) and urea.
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संबंधित प्रश्न
Define excretion.
Name a waste gas released by the plants only during the day time.
What do kidneys excrete?
The excretory organs in an earthworm are ______.
Differentiate between
tannins and resins
One of the following sets of body parts or substances or processed, pick out the one item which overall includes the remaining foir.
Skin, liver, lungs, kidneys, excretion.
Why is it necessary to maintain a normal osmotic concentration of the blood?
In summer the urine is slightly thicker than in winter explain the reason.
Explain in your own words with suitable examples.
How is excretion in plants useful to human beings?
The following diagram represents a mammalian kidney tubule (nephron) and its blood supply.
Parts indicated by the guidelines 1to 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:
Which structure contains the lowest concentration of urea?
Given below is a highly simplified diagram of the human kidney cut open longitudinally. Answer the question that follow:
Mention two functions of the kidney.
Differentiate between:
The Renal artery and the Renal vein.
Differentiate between:
Renal cortex and Renal medulla.
Differentiate between:
Ureter and Urethra.
Name the Following
The division of the kidney which is light in colour and subdivided into conical renal pyramids.
Complete the following sentence with appropriate words:
The outer surface of the kidney is ______ while the inner surface is ______.
Write the functional activity of the following structure: Nephron
Write the functional activity of the following structure: Vasopressin
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.
Name the following;
Three nitrogenous wastes of our body.
