cell

cell membrane- a cell structure that controls which substances can enter or leave the cell.

cell wall- a rigid later of nonliving material that surrounds the cell of plants and some other organisms.

cancer- a diseasr in which some body cells grow and divide uncontrollably, damaging the parts of the body of the body around them.

endoplasmic reticulum- a cell structures that forms a maze of passageways in which proteins and other materials are carried from one one part of the cell to another.

DNA- deoxyribonucleic acids; the genetic material that carries information about the orgamisims.