Bright Tutorials Bright Tutorials
ICSE Class 10 Biology Question 29 of 30

Solved 2024 Question Paper ICSE Class 10 Biology — Question 29

Back to all questions
29
Question

Question 8(iv)

Why are RBCs efficient in their functions though they lack nucleus and mitochondria?

Answer

RBCs are efficient in their functions though they lack nucleus and mitochondria because:

  1. Loss of nucleus makes the red cells biconcave, thus increasing their surface area to absorb more oxygen.
  2. Loss of mitochondria means that they cannot use the absorbed oxygen themselves. Thus, all the oxygen absorbed from the lungs is transported and delivered to the tissues unconsumed.