Liposomes used in COVID vaccines also contain phospholipids like those in the plasma membrane of human cells which mediate fusion of the two membranes.  By fusion, we mean that the liposome and plasma membranes become contiguous, or become one membrane. What drives the process of fusion once the two membranes are close enough to each other?

Q: Cholesterol-lipid microdomains are often referred to as membrane rafts.

A: True.

Q: Which of the following schematics of cell membranes (i-iv) show the correct orientation of…

A: The cell membrane, also known as the plasma membrane, is found in all cells and serves to separate…

Q: Explain why nucleic acid won’t get through the plasma membrane on its own.  Discuss the energetic…

A: The plasma membrane, also known as the cell membrane, is the membrane that divides the inside of the…

Q: Where on a membrane would you find peripheral proteins? List at least 3 of the functions of…

A: Introduction The cell membrane is a biological membrane that protects and isolates the interior of…

Q: Cholesterol is an integral part of plasma membranes. Based on its structure, where is it found in…

A: Cholestrol is waxy and fatty molecule it will be in be present in each cell. Mainly it will be found…

Q: Membranes that contain a significant proportion of cis unsaturated fatty acids are more fluid than…

A: Membrane fluidity refers to the viscosity of the lipid bilayer of a cell membrane or a synthetic…

Q: Why might adding a strong reducing agent like Dithiothreitol (DTT) help denature an extracellular…

A: Proteins are biopolymers made of repeating units of different amino acids. Protein structures play…

Q: Describe the lipid bilayer structure of a cell membrane. What are the roles of proteins in membrane…

A: Plasma membrane is the outer boundary of the cell. It is selective permeable in nature that is it…

Q: In the membrane of a human red blood cell, the ratio of the mass of protein (average molecular…

A: Introduction: Introduction: Proteins are the most plentiful natural molecule of the living…

Q: What are lipid rafts? Describe the molecular components

A: As per the honor code, we only answer one question at a time. Therefore we are answering the first…

Q: Which one of the these primary protein structures is most likely to form an alpha helix that would…

A:

Q: The plasma membrane of E. coli is about 75% protein and 25% phospholipid by weight. How many…

A: an average protein Mr of 50,000 and an average phospholipid Mr of 750.

Q: When scientists are designing the liposome drug delivery system described in question 2, they find…

A: A liposome is a spherical vesicle having one lipid bilayer outlining that re majorly now used as a…

Q: Although both faces of a biomembrane are composed of the same general types of macromolecules,…

A: The cell membrane is a double layer of lipids and proteins that surrounds a cell. It separates the…

Q: How are detergent molecules similar to phospholipid molecules in plasma membranes? Explain the…

A: Introduction:  Phospholipids are the class of lipids that are a major component of all cell…

Q: Why would a bilayer containing only gangliosides be unstable

A: The cell membrane can be defined as a biological membrane that separates the interior of all cells…

Q: Write two examples of glycosaminoglycans, and explain the roles that are not dependent on anchorage…

A: Glycosaminoglycans  are the polysaccharides in which the repeating unit is a disaccharide not a…

Q: the properties of lipids responsible for the property of bilayers?

A: Note - we answer one question at a time. The plasma membrane is also known as the cell membrane.…

Q: Although lipids are largely responsible for providing and maintaining the structure of the cell…

A: Integral protein: [aka intrinsic protein] It is a kind of membrane protein that is permanently…

Q: Proteins may be bound to the exoplasmic or cytosolic face of the plasma membrane by way of…

A: Every cell has a plasma membrane, and many of its organelles possess membranes as well. All…

Q: Integral proteins associate with the membrane through A. covalent attachment to lipids. B. covalent…

A: Cell membrane or plasma membrane is a dynamic, fluid structure which acts as a shield and channel…

Q: Any literature on cholesterol content of plasma membrane in various human cells?

A: The plasma membrane of a human cell is an outer membrane of the cell that is composed of a…

Q: Researchers have discovered a new membrane protein that has three transmembrane domain αhelixes that…

A: Proteins are polypeptides consisting of unbranched polymers constructed from 22 standard α-amino…

Q: Biological membranes are critical components of cells that allow compartmentalisation of cellular…

A: Phospholipid comprising the bilayer.   Most membrane associated lipids are structurally asymmetric…

Q: membrane proteins transverse the entire lipid bilayer. a. Integral b. Peripheral c. Lipid anchored…

A: Proteins that are part of the membrane are of several types: peripheral and integral. The peripheral…

Q: as lipids are synthesized in the ER they are inserted into the cytoplasmic leaflet of the ER .…

A: The endoplasmic reticulum (ER) is the main site for lipid synthesis. Intracellular lipid trafficking…

Q: Polypeptides which are normally synthesized in the endoplasmic reticulum are about 20 amino acids…

A: Proteins are synthesized by the ribosomes present on the endoplasmic reticulum, thus they are known…

Q: The enzymes contained with lysosomes function to breakdown biological macromolecules. These enzymes…

A: The enzymes contained in the lysosomes function in the breakdown of biological macromolecules. The…

Q: When a globular cytoplasmic protein folds into its proper tertiary structure, which of the following…

A: Globular proteins are somewhat water-soluble proteins. These are usually spherical in shape.

Q: In lipid bilayers, there is an order– disorder transition similar to the melting of a crystal. In a…

A: Introduction: The biomolecule which is insoluble in water and not a polymer like other biomolecules…

Q: Neutrophils exhibit a respiratory burst of free radicals and strong oxidizers during acute…

A: Free radicals are highly energetic chemical species that go onto react with almost anything.…

Q: Cholesterol is an integral part of plasma membranes. Based on its structure, where is it found in…

A: Cholesterol, is a waxy, lipid composed of four fused carbon rings which is naturally produced and…

Q: Integral proteins are also known as Select one: a. Intrinsic proteins b. Glycosylated proteins c.…

A:

Q: f you start with 100 mM Na+ and 100 mM K+ outside the liposomes, and 100 mM Na+ and 100 mM K+ inside…

A: Introduction- Sodium potassium pump is a P-type plasma membrane pump in which with the help of ATP…

Q: Please ASAP. Thanku. Which of the following can undergo simple diffusion through a phospholipid…

A: Diffusion is the process of transfer of substances from a higher concentration to a lower…

Q: A main function of the cell membrane is to be very selective as to what is able to cross through, a…

A: The cell membrane is the outer membrane found in the cell of most organisms. It is believed that the…

Q: Why is the lipid bilayer of a c

A: The cell membrane is the shape-maintaining component of the cell. It is present in both animal and…

Q: Plasma membranes contain many different types of lipid molecules. What are the three main types of…

A:

Q: What is the cause of the impermeability of plasma membranes to water-soluble molecules?  Group of…

A: The cell membrane is a thin bilayered outer membrane that covers the cytoplasm of all living cells…

Q: Biological membranes are critical components of cells that allow compartmentalisation of cellular…

A: The diagram shows a schematic outline of a G protein coupled receptor or Seven Pass Receptor (since…

Q: A main function of the cell membrane is to be very selective as to what is able to cross through, a…

A: The answers for the fill-in-the-blanks are provided in step 2. The passage talks about the cell…

Q: Draw the basic structure of a lipid bilayer and label thehydrophilic and hydrophobic regions. Why is…

A: Cell membranes or biomembranes are quasifluid, elastic, pliable, and film-like thin partition over…

Q: What is the cellular location of the MC1R protein?     nuclear     cytoplasmic     cell…

A: Cells are the basic and smallest units that make up living organisms. Cells can be classified as…

Q: Lipid rafts form because membrane component such as sphingolipids and cholesterol molecules…

A: Lipid rafts are assemblies or platforms that have cholesterol, phospholipids and sphingolipids as…

Q: Draw a hydropathy plot and a 2D protein cartoon for a protein that passes through the lipid bilayer…

A: Based on the polarities of the side chains of amino acids they can be arranged in a hydrophobicity…

Q: ubility of membra

A: Cell membrane are made up of lipid which are diverse group of organic compounds and mainly diffused…

Q: What is the role of cholesterol in the phospholipid bilayer shown? increases permeability of the…

A: Introduction: All cells are surrounded by a cell membrane, which is a flexible structure and…

Q: The figure below shows the structure of a porin subunit embedded in the lipid bilayer (left: side…

A: A transmembrane protein is a protein that traverses through the membrane entirely from one side to…