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Life Processes — Science STD 10 — Question

CBSE BoardEnglish MediumSTD 10ScienceLife Processes5 Marks
Question
  1. Define excretion.
  2. Name the basic filtration unit present in the kidney.
  3. Draw excretory system in human beings and label the following organs of excretory system which perform following functions:
  1. Form urine.
  2. Is a long tube which collects urine from kidney.
  3. Store urine until it is passed out.
✓

Answer

  1. Excretion is the process of removal of harmful and unwanted substances, especially nitrogenous wastes, from the body.
  2. Nephron is the basic filtration unit of the kidneys.
  3.  
  1. Kidneys: Form urine.
  2. Ureter: Long tube which collects urine from the kidney.
  3. Urinary bladder: Stores urine until it is passed out.

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