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प्रश्न
The excretory unit in the human excretory system is called:
विकल्प
nephron
neuron
nephridia
kidney
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उत्तर
nephron
Explanation:
The main excretory unit in the human excretory system is called nephron. It produces urine and maintains the homeostasis of the body.
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संबंधित प्रश्न
Explain the term haemodialysis.
The nephrons discharge their urine at ______.
_____________ 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).
Draw the well-labelled diagram of the human excretory system
Name the procedure used in the working of artificial kidney.
Draw a neat labelled diagram of the human excretory system.
In which of the following are the largest amounts of nitrogen excreted from a mammalian body?
(a) breath
(b) sweat
(c) urine
(d) faeces
Answer the following in detail.
Explain the process of transpiration. Describe some factors that affect it.
Answer the following question:
Explain the human excretory system with the help of a suitable diagram.
Study the diagram given below and then answer the questions that follow:
 |
- 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.
State the Location: Medulla of Kidney
Write the functional activity of the following structure: Renal artery
Choose the correct option.
Which one of the following organisms would spend maximum energy in the production of nitrogenous waste?
Answer the following question.
Amphibian tadpole can afford to be ammonotelic. Justify.
Identify the INCORRECT match.
The number of ATP molecules required to produce one molecule of urea from the omithine cycle.
The CORRECT match is ______.
An organ that produces urea:
