Which of the following would be in region C? And why?
Tryptophan
Phenylalanine
Lysine
Arginine
Serine
Isoleucine
Transcribed Image Text:The image displays a diagram of a membrane protein structure.
- **Section A**: This section represents an extramembranous part of the protein, likely located outside the cell or organelle.
- **Section B**: This section is the transmembrane region, depicted as a series of helical structures passing through the lipid bilayer, suggesting the protein spans the membrane.
- **Section C**: This section indicates the internal portion of the protein, situated inside the cell or organelle.
The diagram uses curly lines to depict protein structure and cylindrical shapes to represent the transmembrane alpha-helices, with a double layer indicating the lipid bilayer of the membrane.
Expert Solution
Step 1
The plasma membrane of a cell comprises of different kind of proteins.they are mainly categorised into two btoad categories i.e Integral ( Intrinsic) proteins and peripheral ( extrinsic) protei ns.and based on the nature of membrane and its proteins inteteractions ,most of the biological membranes contains both type of proteins.out of these extrinsc proteins do not interact with the Hydrophobic region of the phospholipid bilayer.these extracellular proteins made a direct contact with extra-cellular matrix proteins.while integral proteins contains membrane crossing alpha helical domains they get embedded in the membrane by either hydrophobic interactions or ionic interactions with the polar head of the phospholipids.
