Bissoy.com
Doctors Medicines MCQs Q&A

The polypeptide chain of lipid anchored proteins itself enter the phospholipid bilayer.

The polypeptide chain of lipid anchored proteins itself enter the phospholipid bilayer. Correct Answer False

The above statement is false. The hydrophobic tail of the attached lipid is embedded in one leaflet of the membrane and anchors the protein to the membrane. The polypeptide chain itself does not enter the phospholipid bilayer.

Related Questions

Which of the following statements are true in case of fluid-mosaic model for cell membrances
P. Between 5 - 8 nm thick and appear trilaminar when viewed in cross-section under electron microscope
Q. Less than 1 nm thick and consist of a layer of protein sandwitched between two layers of phospholipids
R. In the lipid bilayer, proteins are embedded at irregular intervals and held by hydrophilic interactions between lipids and hydrophilic domains of the proteins
S. The protein domains exposed on one side of the lipid bilayer are different from those exposed on the other side
Which of the following statements are correct regarding the general difference between cell and nuclear membranes? 1. A cell membrane occurs in both Eukaryotes and Prokaryotes while a Nuclear membrane occurs only in Eukaryotes.  2. Both cell membrane and nuclear membrane persists throughout the lifetime of a cell. 3. The main feature of the nuclear membrane is the presence of two lipid bilayer structures while a cell membrane has single lipid bilayer structures. Select the correct answer using the code given below.
Which of the following type of proteins do not directly contact the hydrophobic core of the phospholipid bilayer?
A group of cytosolic proteins is anchored to the membrane by a hydrocarbon chain. This hydrocarbon chain is attached to which amino acid residue?
Extrinsic proteins are held tightly to the lipid bilayer.
The lipid bilayer presents a distinctive two-dimensional hydrophobic environment for membrane proteins.
Which of the following proteins are involved in the transport of certain substances across lipid bilayer?
Which cell theory proved that the quasi-fluid nature of lipid enables lateral movement of proteins within the overall bilayer?
Which of the following process is not associated with lipid-anchored proteins?
Which of these structures of the phospholipid bilayer is correctly matched with its property?