MICROANATOMY

Detailed explanation-1: -RBCs lack nucleus. It enables the red blood cell to possess more oxygen-carrying haemoglobin, thus enabling more oxygen to be transported in the blood and boosting the metabolism.

Detailed explanation-2: -– Unlike the rest of the cells in your body, your red blood cells lack nuclei.

Detailed explanation-3: -Unlike most other eukaryotic cells, mature red blood cells don’t have nuclei. When they enter the bloodstream for the first time, they eject their nuclei and organelles, so they can carry more hemoglobin, and thus, more oxygen. Each red blood cell has a life span of around 100–120 days.

Detailed explanation-4: -Red blood cell also they lack nucleus at maturity to increase the surface area for absorption.

Detailed explanation-5: -The lack of a nucleus increases the surface area-volume ratio of RBCs, thus increasing the area for oxygen absorption.