If you added many phospholipids to some water, they would spontaneously orient themselves into something resembling a membrane! Describe why this occurs.

Q: Alanine is an example of an uncharged solute. In the image below, indicate whether the most…

A: Cell transport refers to the movement of molecules and ions across the cell membrane, which is a…

Q: Which portion of a phospholipid is found in the middle (the interior) of a membrane?

A: The phospholipid bilayer consists of two adjacent sheets of phospholipids, arranged tail to tail.

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: 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: Temperature can have a great effect on the fluidity of a bilayer. True Or False

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

Q: Explain why phospholipids have a natural tendency to self-assemble into a bilayer. Why is this…

A: Phospholipids are cylindrical in structure with hydrophilic and hydrophobic ends.

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: The cells of plant seeds store oils in the form of droplets enclosed by membranes. Unlike the…

A: Some living structures have monolayers whereas some of them have bilayers. There are cell walls that…

Q: O cytoplasm CY

A: Cholesterol is a major part of plasma membrane.  So we can rule out the first option.

Q: magine that a cell has a plasma membrane made ONLY of phospholipids and contains no proteins.…

A: Simple diffusion is a process in which small molecules move through the plasma membrane without the…

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: Which of the following molecules may diffuse freely through a phospholipid bilayer? (select two…

A: Alanine: An amino acid having a short hydrophobic side chain is called alanine. This lipid bilayer…

Q: The intracellular salt content of a red blood cell is about 150 mM. The cell is put in a 500 mM salt…

A: Hypertonicity occurs when the quantity of solute in the solution is larger than the amount of solute…

Q: The image shows a lipid bilayer, with the polar heads represented by circles and the hydrophobic…

A: Lipid bilayers are mainly composed of phospholipids. Phospholipids have a hydrophilic head group and…

Q: What explains the very slow movement of membrane phospholipids from one leaflet of a biological…

A: The slow movement of membrane phospholipids from one leaflet of a biological membrane to the other…

Q: Phospholipids form the main fabric of the plasma membrane. One feature of phospholipids is that when…

A: Step 1: The Hydrophilic describes substances or surfaces that have an affinity or attraction to…

Q: A student has 3 unknown molecules. In order to better understand the properties of these molecules,…

A: Biological membrane have Hydrophilic and Hydrophobic properties

Q: Which statement best fits the following diagram? The purplish dots are sugar molecules and the blue…

A: In the provided diagram, we have purplish dots representing sugar molecules and blue areas…

Q: What enzymes are responsible for distributing phospholipids in the correct side of the membrane?

A: Biological membranes include a lipid bilayer which act as a selective permeable barrier to generate…

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.