6. The Membrane

Which of the following molecules is most likely to cross a cell membrane by simple diffusion rather than facilitated diffusion?

Which of the following statements is correct about passive diffusion?

Which form of cellular transport moves substances against the concentration gradient?

Which of the following best describes active transport across a cell membrane?

Does passive transport require the expenditure of energy?

Which of the following best describes the main difference between passive and active transport across a cell membrane?

How do facilitated diffusion and active transport differ in terms of energy usage?

Which of the following best describes the main difference between passive diffusion and facilitated diffusion across a cell membrane?

How does particle size affect a molecule's ability to transport across a cell membrane?

Which of the following is a passive mechanism used to move materials into and out of the cell?

Which of the following is NOT part of the passive transport process?

How do diffusion and facilitated diffusion differ?

Which of the following is not an example of active transport?

Which of the following is an example of passive transport?

Which of the following statements is true about passive transport?