Can some me with my unit 3 review for biology/usatestprep will mark brainiest 1. the mitochondrion in a cell is most like a( in its function. a) brain b) brick eliminate c) engine d) rusty nail 2. unlike a typical animal cell, this plant cell has an angular shape. the shape of a plant cell is due, mostly, to the presence of the a) nucleus. b) cell wall. c) chloroplast. d) cell membrane. 3.during vesicles in the cell fuse with the cell membrane, releasing their contents to the outside. a) diffusion eliminate b) endocytosis c) exocytosis d) pinocytosis 4.all of the following circumstances, except can produce new combinations of genetic traits in sperm and eggs that are different from the parents. a) errors during meiosis b) errors during mitosis c) crossing over during meiosis d) mutations due to exposure to chemicals 5.the cell membrane forms a protective barrier between the external and internal environments. it is referred to as because it allows some substances to cross more easily than others and blocks other substances from crossing into the cell. a) impermeable b) a fluid mosaic c) a plasma membrane d) selectively permeable