Multiple ChoiceWhat is the difference between active and passive transport across a membrane?7824views33rank1comments
Multiple ChoiceA transport protein that simultaneously transports two different molecules in different directions is called:2720views20rank
Multiple ChoiceWhich option below best describes a transporter that requires ATP to move molecules A and B out of the cell?2632views28rank
Multiple ChoiceWhich of the following is a correct difference between active transport and facilitated diffusion? 4062views
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? 1021views
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