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प्रश्न
What job is done by the kidneys?
उत्तर
Kidneys filter the wastes out of the blood and form the urine. They also maintain the water balance of the body.
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संबंधित प्रश्न
Describe the structure and functioning of nephrons.
_____________ secreted by the (ii) _____________ lobe of the pituitary gland. If this hormone secretion is reduced, there is an increased production of urine. This disorder is called (iii) ____________. Sometimes excess glucose is passed with urine due to hyposecretion of another hormone called (iv) _____________ leading to the cause of a disease called (v) ______________.
The diagram given below shows a section of human kidney. Study the diagram carefully and answer the questions that follow :
(i) Label the parts numbered 1 to 4.
(ii) Why does part ‘2’ have a striped appearance?
(iii) What is the fluid that passes down part ‘4’? Name the main nitrogenous waste present in it.
(iv) Mention the structural and functional units of kidneys.
(v) Name the two major steps in the formation of the fluid mentioned in Q.5 (a) (iii).
Name a waste gas released by the plants only during the night time.
Fill in the following blank with suitable word:
Bowman's capsule and tubule taken together make a..........
In summer the urine is slightly thicker than in winter explain the reason.
Look at the figure given bellow, it is a section of human kidney as seen from the front.
Is it a longitudinal section or a cross-section?
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:
Where is most water reabsorbed ?
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.
Study the diagram given below and then answer the questions that follow:
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- Name the region in the kidney where the above structure is present?
- Name the parts labelled 1, 2, 3 and 4.
- Name the stages involved in the formation of urine.
- What is the technical term given to the process occurring in 2 and 3? Briefly describe the process.
Name the Following
The blood vessels which brings pure blood to the kidneys:
Give Technical Term:
The duct which transports urine from the kidney to the urinary bladder.
Complete the following sentence with appropriate word:
______ is the functional unit of kidney.
Identify the INCORRECT match.
Osmoregulation maintains the osmolarity of blood at about ______.
The mode of excretion of nitrogenous wastes like ammonia which takes place by simple diffusion is called ______.
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.
The statement given below is false. Rewrite the correct form of the statement by changing the underlined word.
The pigment urochrome is the breakdown product of the haemoglobin of dead RBCs.
Choose the odd one out in the following set and write the category for the remaining terms:
