Which of the following statements is true of membrane proteins?
A) They are suspended on the surface of the membrane.
B) They are partly embedded in the bilayer.
C) They span across the bilayer and project from both sides.
D) Any of these are true, depending on the specific membrane protein.

Question

Quizplus · Accepted Answer

Membrane proteins can have varied structures and functions, so there is no one universal method of how they are oriented in the membrane. Some membrane proteins are embedded partially in the bilayer, while others span all the way through the bilayer (transmembrane proteins). Some proteins are also only located on one side of the membrane. Therefore, all of the options given in the answer choices could be true, depending on the specific membrane protein.

Which of the Following Statements Is True of Membrane Proteins