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Transportation in Animals and Plants — Science STD 7 — Question

Gujarat BoardEnglish MediumSTD 7ScienceTransportation in Animals and Plants1 Mark
MCQ
The platelets present in the blood help in:
  • A
    Transportation of gases
  • ✓
    Clotting of blood
  • C
    Fighting against diseases
  • D
    Transporting of glucose
✓

Answer

Correct option: B.
Clotting of blood
Platelets, also known as thrombocytes, are blood cells that aid in the clotting of blood.
Platelets rush to the site of injury when a blood vessel wall is injured and form a plug or clot to stop the bleeding.
If your platelet count is low $($a condition known as thrombocytopenia$),$ you're more likely to have uncontrolled or prolonged bleeding.
When the blood contains too many platelets $($a condition known as thrombocytosis$),$ inappropriate blood clot formation can occur, which can be dangerous and life$-$threatening.

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