EVERYDAY SCIENCE

Detailed explanation-1: -In humans, mature red blood cells are flexible biconcave disks. They lack a cell nucleus and organelles, to accommodate maximum space for hemoglobin; they can be viewed as sacks of hemoglobin, with a plasma membrane as the sack. Approximately 2.4 million new erythrocytes are produced per second in human adults.

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

Detailed explanation-3: -Abstract. Mammal red blood cells (erythrocytes) contain neither nucleus nor mitochondria. Traditional theory suggests that the presence of a nucleus would prevent big nucleated erythrocytes to squeeze through these small capillaries. However, nucleus is too small to hinder erythrocyte deformation.

Detailed explanation-4: -The nucleus is only found in white blood cells in mammals. In other vertebrates, the nucleus is present in the red blood cells, white blood cells, and platelets.

Detailed explanation-5: -Prokaryotes are organisms whose cells lack a nucleus and other organelles.