Question

match the term with its definition: integral protein. a protein that is not embedded in the lipid bilayer; a protein that is involved in cell-to-cell joining; a protein with enzymatic activity; a protein that is firmly inserted into the lipid bilayer; i dont know yet

Explanation:

To solve this, we recall the definition of an integral protein. Integral proteins are those that are firmly embedded (inserted) into the lipid bilayer of the cell membrane. Let's analyze each option:

• The first option describes a peripheral protein (not embedded), so it's incorrect.
• The second option refers to a function (cell - to - cell joining) which is a role some proteins (like adhesion proteins) play, not the definition of an integral protein.
• The third option describes a protein with enzymatic activity, which is a functional property, not the structural definition of an integral protein.
• The fourth option matches the definition of an integral protein as it states the protein is firmly inserted into the lipid bilayer.

Answer:

The correct option is: A protein that is firmly inserted into the lipid bilayer