Membrane proteins are termed ‘peripheral’ when they are attached to the membrane only temporarily, and ‘integral’ when they remain attached permanently. Integral proteins are called ‘intrinsic’ if they pass through the entire bilayer, whereas they are ‘extrinsic’ if they occur on just one side of the bilayer. How would you describe a channel protein?
- Aintegral extrinsic
- Bintegral intrinsic
- Cperipheral extrinsic
- Dperipheral intrinsic