Functions of the cell membrane include physical isolation of the cell from its surroundings, regulation of exchange, structural support, and which other function? functions of the cell membrane include physical isolation of the cell from its surroundings, regulation of exchange, structural support, and which other function? binding and delivery of oxygen extracting energy from the environment for cell survival radiation of heat to prevent protein denaturation and cell stress. communication between the cell and its environment

Maria wanted to grow a fern in her backyard. acting on a suggestion from a friend, she collected brown dots from the underside of a fern's leaves and then potted them. after a few days, maria saw small fern leaves erupting from the pot. which statement explains this phenomenon? a. the fern transitioned from gametophyte generation to sporophyte generation. b. the fern grew as a result of mitosis. c. the fern transitioned from sporophyte generation to gametophyte generation. d. the fern grew to be genetically identical to its parent plant.

This is the amino acid cysteine. circle the amine group, put a box aroundthe carboxylic acid group and use a different colored pencil/pen to circle the sidechain (r group). h o | ||nh2— c- c-oh | ch2 | sh

The first amino acid of a new polypeptide chain is