Question

give a biological reason for following erythrocytes is mammel are denucleated​

Answer 1

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❖Erythrocytes in mammals are denucleated:

$\to \tt \red {\underline{Mammalian\: Red\: Blood\: Cells}}$

❖Mammalian red blood cells or erythrocytes when mature circulate in the in the blood system and are devoid of certain organelles .The cells lack,

-Nucleus

-Mitochondria

-Endoplasmic reticulum.

❖Though deficient of these organelles,the mature blood red blood cells,in reality,are more efficient in carrying out their task of picking up and delivering oxygen.

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$\to \tt \green {\underline{Loss\: Of\: Nucleus}}$

❖Loss of nucleas,makes the red blood cells biconcave,thus increasing their surface area volume ratio for absorbing more oxygen.

❖The cells have to squeeze through really fine capillaries, which would probably be more of a problem, if they had a nucleus.

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❖young RBC contains nucleus But, as red blood cells mature, the size of the nucleus decreases, until it finally disappears with the condensation of the chromatin material.

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Answer 2

$\huge \rm \red {\underline{\underline{Answer:-}}}$

☞Erythrocytes are the small and most numerous blood cells. Mature mammalian Erythrocytes are non nucleated, circular, disc- like, and bio- concave without mitochondria. Mature Erythrocytes are known to have a high capacity to accommodate more hemoglobin hence carry more oxygen molecules.

☞ A mature erythrocyte lacks nucleus and mitochondria so as to make place for the accommodation of more hemoglobin and hence more oxygen molecules. Lack of such organelles also provides the peculiar biconcave appearance of RBCs that aids in efficient diffusion.

$\rm \green {\underline{\underline{Hope\: it\: works}}}$