AP BIOLOGY

Detailed explanation-1: -Although normal liver cell turnover occurs through mitotic division of both hepatocytes & non-parenchymal cells, there are nevertheless strong indications for the presence of hepatic stem cells, as manifested following persistent severe or potentially catastrophic injury.

Detailed explanation-2: -what 3 types of cells divide less frequently? nerve cells, brain cells, and skeletal muscle cells all stop dividing after birth.

Detailed explanation-3: -“We know that in a healthy adult liver, the cells are dormant and rarely undergo cell division, ” he said. “However, if the liver is damaged, the liver cells re-enter the cell cycle to divide and produce more of themselves.”

Detailed explanation-4: -Mature RBCs do not divide. In fact, because mature RBCs don’t even have a nucleus, these cells really can’t do much of anything other than act as vessels for the hemoglobin with which they are jam-packed. New RBCs are made in the marrow in the mature human.