Multiple ChoiceWhich process moves an ion across a cell membrane against the concentration gradient?260views
Multiple ChoiceWhich of the following molecules provides the energy required for active transport processes in cells?444views
Multiple ChoiceWhich type of transport requires energy to move substances across cell membranes?461views
Multiple ChoiceWhich process uses proteins to move molecules against a concentration gradient?379views
Multiple ChoiceWhich of the following membrane activities requires energy from ATP hydrolysis?630views
Multiple ChoiceWhich of the following is a property of protein-based active transport across cell membranes?82views
Multiple ChoiceWhich of the following is an example of active transport through a cell membrane?385views