Question

Active transport differs from facilitated diffusion in that: A. Ions are not transported via active transport, only by facilitated diffusion. B. Active transport requires a protein component, whereas facilitated diffusion occurs by simple diffusion through the plasma membrane. C. Active transport involves a conformational change in the transport molecule. D. Active transport involves the transport of molecules up their concentration gradient. Question 2: Facilitated diffusion differs from passive diffusion in that facilitated diffusion is: A. Against the concentration gradient. B. Mediated only by a protein channel. C. Mediated only by a protein carrier. D. Mediated by a protein carrier or channel. Question 3: Mutations in the internalization signal of endocytic receptors prevent their interaction with: A. Adaptor proteins. B. Dynamin. C. Caveolin. D. Clathrin.

          Active transport differs from facilitated diffusion in that:
A. Ions are not transported via active transport, only by facilitated diffusion.
B. Active transport requires a protein component, whereas facilitated diffusion occurs by simple diffusion through the plasma membrane.
C. Active transport involves a conformational change in the transport molecule.
D. Active transport involves the transport of molecules up their concentration gradient.

Question 2: Facilitated diffusion differs from passive diffusion in that facilitated diffusion is:
A. Against the concentration gradient.
B. Mediated only by a protein channel.
C. Mediated only by a protein carrier.
D. Mediated by a protein carrier or channel.

Question 3: Mutations in the internalization signal of endocytic receptors prevent their interaction with:
A. Adaptor proteins.
B. Dynamin.
C. Caveolin.
D. Clathrin.

Added by Ashley B.

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