How does a phospholipid bilayer droplet with an aqueous center differ from a cell

Q: Given the following compositional assessment of a cell membrane, describe from ER to cell membrane…

A: Introduction :- Endoplasmic reticulum is the main organelle where protein and lipid biosynthesis…

Q: Plasma membrane [ Choose] Lysosome [ Choose] Mitochondria [ Choose ] Rough endoplasmic reticulum […

A: Plasma membrane - outer boundary of cells. Lysosomes - hydrolytic enzymes enclosed in a vehicle.…

Q: lycolipids in the plasma membrane are located at: 1.Inner leaflet of the plasma membrane 2.The…

A: Glycolipids are biomolecular entities that exist in the phospholipid bilayer of the cell membrane…

Q: A cell that is missing this structure would not have a rigid structural support outside of its…

A: There are two types of cells which are classified as Animal cell and Plant cells. Both the cells…

Q: A cell has 40% water and 60% solute. The solution around the cell has 40% water and 60% solute. What…

A: When the cell is placed in a solution which high solutes then inside of the cell, then water will…

Q: According to the fluid mosaic model of cell membranes, which of the following is a true statement…

A: Cell membrane / plasma membrane is the membrane present on the outer side of cell that basically…

Q: Which of the following molecules is more likely to diffuse through a synthetic lipid bilayer (i.e. a…

A: Being completely made of lipids and containing no transporters, the lipid bilayer will be highly…

Q: Bacteria can change the number of saturated and unsaturated lipids and then plasma membrane if a…

A: The cell membrane is the outer membrane of most of the organism’s  cells and it separate the outer…

Q: Below are listed molecules with different chemical characteristics. Knowing that all molecules will…

A: Introduction  A thin polar membrane comprised of two layers of lipid molecules is known as a lipid…

Q: Which of the following correctly describes the structure of the phospholipid bilayer in plasma…

A: The plasma membrane is mostly made of phospholipids, which are fatty acids and alcohol. The…

Q: If we swim in Dead Sea water, are our cell plasmolyzed ? Why?

A: Dead sea water is salty having more salt concentration and less solvent (water) concentration in the…

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: A phospholipid bilayer with equal amounts of saturated and unsaturated fatty acids displays a…

A: Introduction Lipids:- A lipid is any of various organic compounds that are insoluble in water. They…

Q: c) What part or parts of a cellular membrane play(s) a role in determining the fluidity of the…

A: Consists of a single phosphate head, and two fatty acid tails. All hydrophilic heads are on the…

Q: Explain how the amphipathic (containing both hydrophobic and hydrophilic sides) protein (shown;…

A: An amphipathic protein is one that has both hydrophobic (water-repelling) and hydrophilic…

Q: Explain why spontaneous phospholipid translocation (themovement of a molecule from one leaflet of a…

A: A phospholipid is a type of lipid molecule that is the main component of cell membrane. Each…

Q: Part a) Would a single alpha helix be more stable in a aqueous solution or a membrane. Explain why.…

A: The secondary structure of proteins is referred to as the regular, recurring arrangements of…

Q: Lipid bilayers are said to behave like two-dimensional fluids. What does this mean? What drives the…

A: Lipid bilayers are the basic structural components of cell membranes & are composed of a double…

Q: Ammonia (NH3) is a weak base that under acidic conditions becomes protonated to the ammonium ion in…

A: The cells are the basic structures found in all living organisms with viruses and viroids being the…

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: Please label this red onion cell image with a drop of water under the microscope. Include all…

A: The movement of nutrients, water, and waste in and out of the cell is required for the living…

Q: The experiment described in Figure 11-16 was performed at 37 °C. If the experiment were carried out…

A: The bilayer of the cell membrane is made up of fatty acids as fatty acid is the basis of cell…

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: How does freeze fracture microscopy work and how has this technique improved membrane protein…

A: Cell membranes are made up of phospholipids and associated or inserted proteins. Membrane proteins…

Q: Two theories of membrane structure are discussed below. Unit Membrane Model Phospholipid molecules…

A: Membrane of the cell is also known as the plasma membrane or the cell membrane. The membrane is an…

Q: Which portion of the phosphatidylinositol molecule contributes to (a) fluidity of the bilayer and…

A: Phosphatidylinositol is a type of glycerophospholipid that contains a glycerol backbone, two…

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.