The cytoplasmic membrane is composed of a ___ bilayer. A) peptidoglycan B) lipopolysaccharide (LPS) C) phospholipid D) protein E) teichoic acid What is a major function of the cytoplasmic membrane? A) Permeability barrier B) Protein anchor C) Energy conservation D) All of the above E) None of the above What is a major function of the cell wall? A) Permeability barrier B) Protein anchor C) Energy conservation D) Structural strength E) All of the above Gram-negative cells stain purple. A) True B) False Which of the following is NOT a cell surface structure? A) Capsule B) Endospore C) Pili D) Fimbriae E) Slime layers Once a bacterial cell undergoes sporulation, the endospore can NOT become a vegetative cell A) True B) False Directed movement in response to chemicals is A) phototaxis. B) aerotaxis. C) chemotaxis. D) osmotaxis E) hydrotaxis.
