Multiple ChoiceWhich of the following molecules is most likely to cross a cell membrane by simple diffusion rather than facilitated diffusion?117views
Multiple ChoiceWhich form of cellular transport moves substances against the concentration gradient?150views
Multiple ChoiceWhich of the following best describes active transport across a cell membrane?166views
Multiple ChoiceWhich of the following best describes the main difference between passive and active transport across a cell membrane?124views
Multiple ChoiceHow do facilitated diffusion and active transport differ in terms of energy usage?517views
Multiple ChoiceWhich of the following best describes the main difference between passive diffusion and facilitated diffusion across a cell membrane?106views
Multiple ChoiceHow does particle size affect a molecule's ability to transport across a cell membrane?496views
Multiple ChoiceWhich of the following is a passive mechanism used to move materials into and out of the cell?451views