Multiple ChoiceWhat is the difference between active and passive transport across a membrane?7833views33rank
Multiple ChoiceA transport protein that simultaneously transports two different molecules in different directions is called:2723views20rank
Multiple ChoiceWhich option below best describes a transporter that requires ATP to move molecules A and B out of the cell?2635views28rank
Multiple ChoiceWhich of the following is a correct difference between active transport and facilitated diffusion? 4069views
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? 1023views
Textbook QuestionWhat is the primary difference between active transport processes and passive transport processes?255views
Textbook QuestionWrite a single sentence, using no more than 25 words, to summarize each of the following cellular processes:c. Primary active transport239views