Two Graphs Illustrating the Transport Rate of Solutes Across the Plasma

question 149

Multiple Choice

Two graphs illustrating the transport rate of solutes across the plasma membrane are shown on the slide below. Which of the following best explains the difference in the shape of the curves?

• A)Different amounts of membrane surface area for diffusion
• B)Different degrees of membrane thickness
• C)The 2 solutes have different molecular weights
• D)The 2 solutes have different oil/water partition coefficients
• E)The presence of a protein transporter

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