The plasma membrane acts as a barrier in cells of all types to control the movement of substances into and out of the cell. a. explain how the plasma membrane acts as a semi-permeable barrier to various types of molecules based on its molecular structure. b. describe, in detail, three ways in which large molecules such as proteins can cross the plasma membrane.

Explain the cellular functions that occur when antibiotics attack a bacteria cell. a. antibiotics target the cell wall, cell membrane, and the processes of protein and nucleic acids production in bacteria to rupture the cell. b. antibiotics create dormant resistant endospores to preserve the genetic material and rupture the cell. c. antibiotics target the cell wall and form a bridge-like connection to form conjugation. d. antibiotics use binary fission to grow twice its size, replications its dna, and split into two cells.