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Describe the structure of nephrons. - Science

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प्रश्न

Describe the structure of nephrons.

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उत्तर

Nephrons are the basic filtering units of kidneys. Each kidney possesses a large number of nephrons, approximately 1-1.5 million. The main components of the nephron are the glomerulus, Bowman’s capsule, and a long renal tubule. 

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पाठ 6: Life Processes - Intext Questions [पृष्ठ ११२]

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एनसीईआरटी Science [English] Class 10
पाठ 6 Life Processes
Intext Questions | Q 1 | पृष्ठ ११२

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संबंधित प्रश्‍न

Identify the odd one.


What do kidneys excrete?


What are the methods used by plants to get rid of their waste products?


Draw a neat labelled diagram of the human excretory system.


Write True (T) or False (F) for the following statement. Rewrite the false statement in the correct form.   

Excess sugar in the blood is a symptom of diabetes. 


Differentiate between 

tannins and resins


Answer the following in detail.

Describe the process of urine formation. 


Define the following term:

Osmoregulation


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?


Given below is a simplified diagram of the human kidney cut open longitudinally. Answer the questions that follow.

  1. Define excretion.
  2. Why does the cortex of the kidney show a dotted appearance?
  3. Why does the medulla of the kidney show a striped appearance?
  4. Write two differences in the composition of the blood flowing through the blood vessels 'A' and 'B'.

Explain in your own words with suitable examples. 

How is excretion in plants useful to human beings?


Choose the correct answer:
Narrow apex of pyramid in kidney is called ___________


Given below is a diagram of a human kidney, cut open longitudinally. Answer the following: 

(i) Give definition of excretion.
(ii) Name the unit of kidney.
(iii) Why does the cortex of kidney show dotted appearance?
(iv) List the functions of the kidney. 


Write the functional activity of the following structure:

Glomerulus


Choose the correct option.

Which one of the following organisms excrete waste through nephridia?


The product of the process of deamination is ______.


When uric acid is produced in excess, it gets deposited in joints, resulting in ____________.


Why is the rate of breathing in aquatic organisms much faster than in terrestrial organisms?


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