estrogens are small hydrophobic lipid hormones that promote cell division and the development of reproductive structures in mammals. estrogens passively diffuse across the plasma membrane and bind to their receptor proteins in the cytoplasm of target cells (a) describe one characteristic of the plasma membrane that allows estrogens to passively cross the membrane. (1 point) description (1 point) hydrophobic/nonpolar space between phospholipids (b) in a laboratory experiment, a researcher generates antibodies that bind to puritied estrogen receptors extracted from cells. the researcher uses the antibodies in an attempt to treat estrogen-dependent cancers out finds that the treatment is mettective. exolan the mettectiveness or the antloodles to1 treaung es ogen -dependent cancers. (2 points) explanation (2 points) antibodies are unable to enter the cell (kxtraceluar antloodies will not bind to lintraceluar estrogen recentors