Increase in efficiency of mammalian red blood cells due to absence of certain organelles should be explained with reasons.
Answers
The efficiency of the Red Blood Cells are explained below :
(i) no nucleus
The R.B.Cs do not have nucleus and hence they have much free space.
They can accomodate more space due to loss of nucleus.
They can move in a single file .
(ii) no organelles
The R.B.C s do not have any cell organelle .
This means they have a high surface area and they can easily absorb substances .
This is why they are efficient .
Answer:
Erythrocytes lack organelles (such as the nucleus and mitochondria), which frees up space for haemoglobin molecules and hinders the cell from utilising the oxygen it is transporting.
Explanation:
The nucleus and mitochondria are key organelles that are missing in adult RBCs.
A developed erythrocyte lacks a nucleus and mitochondria to create room for more haemoglobin and hence more oxygen molecules. The absence of such organelles also contributes to RBCs' distinctive biconcave form, which assists in effective diffusion.
If RBCs had mitochondria, the mitochondria would use all of the oxygen instead of delivering it to all of the cells in the body, leaving the cell without oxygen.
When compared to the volume of a red blood cell, the biconcave form gives a significant surface area.