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The Excretory system — Biology STD 10 — Question

ICSE BoardEnglish MediumSTD 10BiologyThe Excretory system1 Mark
MCQ
Tubular secretion is:
  • A
    Secretion of chemicals and salts into the forming urine.
  • B
    Secretion of salts into the forming urine.
  • ✓
    Secretion of certain substances and foreign chemicals into the forming urine is called tubular secretion.
  • D
    Secretion of glucose and chemicals into the urine.
✓

Answer

Correct option: C.
Secretion of certain substances and foreign chemicals into the forming urine is called tubular secretion.
(c) Secretion of certain substances and foreign chemicals into the forming urine is called tubular secretion.
Explanation:
Tubular secretion is a process in the nephron of the kidney where certain substances, such as foreign chemicals, excess ions, and waste products, are added from the blood into the forming urine. This process helps in maintaining pH balance and removing toxic substances from the body.

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