Multiple ChoiceWhich of the following is a correct difference between active transport and facilitated diffusion?
Multiple ChoiceA cell has a membrane potential of –100 mV (more negative inside than outside) and has 1,000 times more calcium ions outside the cell than inside. Which of the following best describes a mechanism by which Ca2+ enters the cell?
Open QuestionWhat is the primary difference between active transport processes and passive transport processes?
Multiple ChoiceA transport protein that simultaneously transports two different molecules in different directions is called:
Multiple ChoiceWhich option below best describes a transporter that requires ATP to move molecules A and B out of the cell?