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प्रश्न
Put a tick mark (✓) against the most appropriate alternative in the following statement :
In human beings, urea is produced in :
विकल्प
liver
kidney
spleen
urinary bladder
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उत्तर
liver
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संबंधित प्रश्न
Give the biological/technical terms for the following:
The hormone increasing reabsorption of water by kidney tubules.
Identify the odd one.
Name the two waste products of the human body which are produced in the body cells.
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The organs A of a person have been damaged completely due to which too much of a poisonous waste material B has started accumulating in his blood, making it dirty. In order to save this person’s life, the blood from an artery in the person’s arm is made to flow into long tubes made of substance E which are kept in coiled form in a tank containing solution F. This solution contains three materials G, H and I in similar proportions to those in normal blood. As the person’s blood passes through long tubes of substance E, most of the wastes present in it go into solution. The clean blood is then put back into a vein in the arm of the person for circulation. |
- What are organs A?
- Name the waste substance B.
- What are (i) E, and (ii) F?
- Name G, H and I.
- What is the process described above known as?
Differentiate between the following pairs of term :
Renal cortex and renal medulla
Fill in the blanks in the following passage to make it a meaningful description.
In a nephron, the ______ flows through the ______ under great pressure. The reason for this great pressure is that the ______ (outgoing) ______ is narrower than the ______ (incoming). This high pressure causes the ______ part of the blood to filter out from the ______ into the ______ capsule.
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 (normally) contains the lowest concentration of glucose?
Complete the diagram/chart with correct labels/ information. Write the conceptual details regarding it.

Identify the INCORRECT match.
The process of removal of unwanted metabolic wastes from the body is called ______.
