2. Cell Chemistry & Cell Components

Passive vs. Active Transport

객관식
Which of the following statements about passive transport is correct?
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객관식
What allows sodium and potassium ions to flow down their electrochemical gradient across the cell membrane?
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객관식
Which of the following membrane movements is not a passive process?
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객관식
Which of the following is an example of passive transport in cells?
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객관식
A transport protein that simultaneously transports two different molecules in different directions is called:
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객관식
Which of the following is a correct difference between active transport and facilitated diffusion?
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객관식
What is the difference between active and passive transport across a membrane?
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객관식
Which of the following statements best describes the movement of sodium and potassium ions across the plasma membrane?
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객관식
Leak channels allow the movement of potassium and sodium ions by what type of membrane transport?
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객관식
Which of the following is a difference between primary and secondary active transport?
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객관식
Which of the following is a mechanism of carrier-mediated transport?
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객관식
A 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?
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객관식
Passive membrane transport processes include___________.
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객관식
Which option below best describes a transporter that requires ATP to move molecules A and B out of the cell?
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