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Question
Why red blood cells do not have nuclei present in them?
Why red blood cells do not have nuclei present in them?
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Solution
RBC and Nucleus
- The nucleus is the control center of a cell. It has DNA in it which is required for the reproduction of any cell.
- However, the function of RBCs is very simple.
- They just carry chemicals around.
- RBC has hemoglobin in it which carries oxygen. The RBCs don't need to reproduce as simply more RBCs can be produced by the red bone marrow in a process called erythropoiesis.
- Also, they don't need any energy for transport as they're carried by the arteries and veins.
- Besides, the nucleus takes up a lot of space in a cell.
- And since RBCs don't do any of the functions which are the nucleus's responsibility, evolution figured out that it's more logical to just exclude them from the RBCs.
- This space can be used to fit in more hemoglobin.
- Hence, to carry oxygen more efficiently, RBCs don't have a nucleus.
RBC and Nucleus
- The nucleus is the control center of a cell. It has DNA in it which is required for the reproduction of any cell.
- However, the function of RBCs is very simple.
- They just carry chemicals around.
- RBC has hemoglobin in it which carries oxygen. The RBCs don't need to reproduce as simply more RBCs can be produced by the red bone marrow in a process called erythropoiesis.
- Also, they don't need any energy for transport as they're carried by the arteries and veins.
- Besides, the nucleus takes up a lot of space in a cell.
- And since RBCs don't do any of the functions which are the nucleus's responsibility, evolution figured out that it's more logical to just exclude them from the RBCs.
- This space can be used to fit in more hemoglobin.
- Hence, to carry oxygen more efficiently, RBCs don't have a nucleus.
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