AP BIOLOGY

Detailed explanation-1: -A transmembrane protein (TP) is a type of integral membrane protein that spans the entirety of the cell membrane. Many transmembrane proteins function as gateways to permit the transport of specific substances across the membrane.

Detailed explanation-2: -Transmembrane proteins span the entire plasma membrane. Transmembrane proteins are found in all types of biological membranes. Integral monotopic proteins are permanently attached to the membrane from only one side.

Detailed explanation-3: -Examples of type II membrane proteins include the transferrin receptor, the asialoglycoprotein receptor, and many ecto-enzymes and glycosyl transferases. Many integral membrane proteins span the membrane more than once, and often many times.

Detailed explanation-4: -An integral, or intrinsic, membrane protein (IMP) is a type of membrane protein that is permanently attached to the biological membrane. All transmembrane proteins are IMPs, but not all IMPs are transmembrane proteins.

Detailed explanation-5: -Most integral proteins span the entire width of the membrane and are thus called transmembrane proteins. Integral proteins can only be removed from the membrane by introducing a non-polar solution or a detergent.