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STD 11 - 15. Body fluids and criculations — BIOLOGY STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceBIOLOGYSTD 11 - 15. Body fluids and criculations1 Mark
MCQ
Which of the following is a cell fragment?
  • ✓
    Blood platelets
  • B
    Bone cells
  • C
    Lymphocytes
  • D
    Leucocytes
✓

Answer

Correct option: A.
Blood platelets
a
Blood Platelets occur only in mammals. They are non-nucleated and colourless. They bud off from the megakaryocytic cells of red bone marrow. That's why they are called blood platelets or cell fragments. They have thromboplastin necessary for blood clotting

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