Why are newly synthesized lipids added to the cytosolic side of the bilayer and not the lumen side and how is this problem addressed?

Q: Do you think sodium (Na+) or chloride (Cl-) ions can diffuse directly through the lipid bilayer? How…

A: Lipid bilayer is formed of two phospholipid layers which has hydrophobic tail and hydrophilic head.…

Q: Define the term Diffusion Through the Lipid Bilayer?

A: Molecules can move via biological membranes via 2 main methods : active and passive transport.…

Q: Why will you reconstitute the receptor into a lipid bilayer?

A: G-protein coupled receptor - It is also termed as 7 pass transmembrane domain receptor. this get…

Q: How are the Casparian strip and tight junctions similar?

A: The Casparian strip is a band of cell divider material kept in the extended (radial) and get-over…

Q: What TWO factors keep integral trans-membrane proteins embedded firmly within the lipid bilayer?

A: Membrane proteins carry out several important functions of membranes. They impart characteristic…

Q: Peroxisomes and the smooth endoplasmic reticulum are both associated with detoxification of harmful…

A: It is a physiological removal of toxic substances from a living organism,  which is carried out by…

Q: What structure is usually found in the cell membrane? Is if a. micelle, b. clathrate, c. monolayer…

A: What structure is usually found in the cell membrane is asked.

Q: Which intermolecular process primarily drives the formation of a bilayer when phospholipids are…

A: Phospholipids are the chief constituent of the plasma membrane. They are amphiphilic and can form…

Q: if something needed to enter the cell and couldn't go through the phospholipid bilayer, how else…

A: The cytoplasmic membrane is a good permeability barrier because it is semi-permeable and envelops…

Q: Why do the hydrocarbon tails of membrane phospholipids provide a barrier between the inside and…

A: The membranes of a typical cell are composed of phospholipids. The phospholipids are composed of a…

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

A:

Q: What functions do lysosomes and peroxisomes perform?

A: Lysosomes and peroxisomes are both single-membrane bound oval-shaped organelles found in eukaryotic…

Q: What is the Direction of net flux Through Lipid Bilayer?

A: The direction of flux will depend on the concentration gradient.

Q: Why does a muscle cell contain many mitochondria and a white blood cell (an immune cell that engulfs…

A: Membrane-enclosed regions of the cell that serve a particular purpose are Organelles. All the cells…

Q: How do ion channel proteins fold in the lipid bilayer membranes?

A: Ion channel proteins play pivotal role for electrical excitability of muscle cells, signalling of…

Q: What is the pathway used by cells to place carbohydrates on plasma membrane proteins?

A: Post translational modification refers to the covalent and usually enzymatic modification of…

Q: What do the Lysosomes consist of?

A: Lysosome are membrane-bound cell organelle which are involved with various cell processes. These…

Q: Why is the cell membrane negatively charged?

A: The plasma membrane or cell membrane is the membrane found in all cells that separates the interior…

Q: What is the name of the process by which worn-out organelles are digested by lysosomes?

A: Lysosomes are present in eukaryotic cells and are absent in prokaryotic cells. They are…

Q: Transmembrane portrudes on both sides. Integral protein is in the width of the bilayer and may…

A: An integral membrane protein is a type of membrane protein that remains permanently attached to the…

Q: What is the structural and functional difference between the rough and smooth endoplasmic reticulum

A: Rough ERs have ribosomes on their surfaces and contain vast quantities of proteins for export.…

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: what purpose does the plasma membrane’s hydrophobic interior serve?

A: Introduction The plasma membrane, also known as the cell membrane, is the membrane found in all…

Q: What property allows O2 and CO2 to cross a lipid bilayerwithout the aid of membrane proteins?

A: Phospholipid bilayer consists of two contiguous layers of phospholipids by the hydrophobic tails…

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: What is the energetic driving force for the formation of phospholipid bilayers?

A: The phospholipid bilayer is a double membrane structure, which is present around to enclose the…

Q: What drives the movement of lipid molecules and proteins within the bilayer? How can such movement…

A: The cell membrane is an important part of a cell as it determines the structure and function of the…

Q: What important ion channel is present in the membrane of a lysosome? What is the function of the ion…

A: Christian de Duve discovered lysosomes in 1949. Lysosomes are single membrane bound organelles that…

Q: Why should triacylglycerol be insignificant component of plasma membrane ?

A: Answer: Introduction: Plasma membrane are selectively permeable in nature and important cell…

Q: Membrane proteins that interact with molecules in the external environment are often anchored to the…

A: The basic structure of cell membrane is, providing some membranal proteins which are very helpful…

Q: What can pass through the phospholipid bilayer?

A: Cells have an outer covering that is commonly known as the plasma membrane or cell membrane. This…

Q: Why do most molecules require the assistance of proteins to cross the cellular membrane? What…

A: The cellular membrane is a semi-permeable lipid bilayer. The lipids found in the membrane are…

Q: if the membrane composition of the golgi in a cell is incorrect, what could have happened?

A: If the composition of membrane in Golgi body is incorrect then the cell is similar to the cell with…

Q: What causes the decreased pH in the endosomes and lysosome?

A: Endosomes and lysosomes are the two types of organelles present in cell. A cell is the basic…

Q: What does lysosome contain?

A: Lysosomes are membrane bound cell organelles present in eukaryotic animal cells.They are spherical…

Q: Describe the structure and functions of plasma membrane. How are amino acids transported through…

A: STRUCTURE OF PLASMA MEMBRANE :-    The plasma membrane is made up of-  phospholipids which are…

Q: What components of the plasma membrane might this molecule interact with?

A: Molecule is atorvastatin It is a  drug that specifically inhibits the enzyme HMG-CoA reductase and…

Q: What are the functional consequences of the different organelle membranes and what are the roles of…

A:

Q: Most cytoplasmic proteins lack disulfide bonds, whereas extracellular proteins usually contain them.…

A: Disulfide bond formation generally occurs in the endoplasmic reticulum by oxidation.

Q: Why lysosomes are called “suicidal bags”?

A: Lysosomes are membrane bound vesicular structures formed by the process of packaging in the Golgi…

Q: Of which substance are microfilaments made? What are the properties of these elements that give…

A: You must have heard about a three dimensional network of filamentous proteins that extend throughout…

Q: How do we know that membrane phospholipids regularly intermingle and move laterally, but rarely flip…

A: The cell membrane is also known as a cytoplasmic membrane or plasma membrane or plasmalemma.…

Q: What determines whether something will pass the lipid bilayer?

A: The lipid bilayer is a thin polar membrane, which is composed of two layers of lipid molecules.…

Q: Where in the cell can ribosomes be found? What is the main biological function of ribosomes?

A: The cell consists of small granules called ribosomes. These are ribonucleoprotein particles. In…

Q: How do proteins and the lipid bilayer interact with each other in membranes?

A: Introduction: Those lipids that are both hydrophilic and hydrophobic in nature are known as…

Q: What non lipid macromolecules are inserted into the plasma membrane.

A: PLASMA MEMBRANE- Also known as Cytoplasmic membrane. Present below the cell wall and 7.5nm in…

Q: What TWO factors help to maintain integral transmembrane proteins securely fixed inside the lipid…

A: Membrane proteins provide a variety of vital roles for membranes. They provide each kind of membrane…

Osmosis

In simple words, osmosis is the slow, gradual movement of a liquid through a membrane. But there are nuances to this process. For instance, there has to be an imbalance in the distribution of solute in the liquid on either side of the membrane, which has to be semipermeable. The liquid in the region with a lower solute concentration moves to the region with a higher concentration, thereby displacing the solution in the process. The objective is to equalize the concentration of molecules on both sides of the membrane; the displacement of liquid can be viewed as a byproduct of this equalization. Since there is no energy required to carry osmosis, it is considered a passive process.