Diffusion – Biological Membranes
About the Lecture
The lecture Diffusion – Biological Membranes by Kevin Ahern, PhD is from the course Biochemistry: Basics.
Included Quiz Questions
Which of the following is NOT true about the movement of materials across a membrane?
- It always requires a transport protein.
- It is affected by the concentration of materials on either side of the membrane.
- It requires an energy source to move from lower to higher concentrations.
- Regulation/control of it is essential for cells.
- The charge difference has an effect on movement across the lipid bilayer.
Which of the following is true of facilitated diffusion?
- It requires only the energy of diffusion.
- It uses ATP or GTP.
- It does not require a protein.
- It requires antiports.
- It moves ions from lower concentrations to higher concentrations.
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Author of lecture Diffusion – Biological Membranes
Kevin Ahern, PhD
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