Facilitated diffusion is a passive transport mechanism in which carrier proteins shuttle molecules across the cell membrane without using the cellâs energy supplies.
Linda Brown was born on February 20, 1942, in Topeka, Kansas, to Leola and Oliver Brown. Though she and her two younger sisters grew up in an ethnically diverse neighborhood, Linda was forced to walk across railroad tracks and take a bus to grade school despite there being a school four blocks away from her home.
On this day in 1978, Louise Joy Brown, the worldâs first baby to be conceived via in vitro fertilization (IVF) is born at Oldham and District General Hospital in Manchester, England, to parents Lesley and Peter Brown.