Which of the following statements about the membrane bilayer is FALSE?

Q: What do diffusion and osmosis have in common? How are they different from active transport? In the…

A: Passive transport is the transport across the cell membrane in which there is no requirement of…

Q: Which of the following would not be able to pass through the plasma membrane without the help of…

A: Plasma membrane is the selectively permeable membrane which forms the external boundary of the cell.…

Q: The phospholipid portion of biological membranes is referred to as "selectively permeable". What…

A: selective permeability is a property of cell membranes that just permits certain molecules to enter…

Q: The rigidity of the plasma membrane is an essential characteristic that allows for cells to survive…

A: Changes in temperature can significantly affect the rigidity of the plasma membrane. Higher…

Q: Describe the various types of specialized domains that can be established in the plasma membrane?…

A: Domains in plasma membrane can be formed by interaction of different types of molecules with each…

Q: "Tight junctions perform two distinct functions: they seal the space between cells to restrict…

A: Two neighbouring cells that come together to form a barrier are said to have tight junctions.…

Q: Which of the following is inversely related to the rate of diffusion for certain substance: a-…

A: Diffusion can be defined as a process in which there is movement of moleules takes place from the…

Q: What are the four classifications of membrane proteins? How is each positioned with respect to the…

A: Membrane proteins are known to interact with biological membranes. They can be classified into…

Q: What molecule should cells insert their cell membrane to ensure membrane fluidity?

A: All organisms are made up of cells. Cells can be eukaryotic or prokaryotic. All eukaryotic cells are…

Q: Describe ONE modification that could happen to the phospholipids in a membrane that would increase…

A: The membrane of cell organelles is composed of a phospholipid bilayer which contains two layers of…

Q: Which of the following will decrease diffusion rate (a.k.a. rate of flux) of a particle across the…

A: Introduction The transfer of a molecule from a high concentration area to a low concentration area…

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: For plasma membrane, what macromolecules (carbohydrates, proteins, lipids, or necleic acids…

A: Plasma membrane (cell membrane) : It is made up of double layer of phospholipids. Hence it is lipid…

Q: 3)What is the second type of lipid that plays a major role in the plasma membrane? This lipid does…

A: The plasma membrane of the cell regulates the transportation of different molecules in and out of…

Q: Which of the following would not be able to pass through the plasma membrane without the help of…

A: Introduction  Transmembrane proteins are proteins that span the lipid bilayer of the plasma membrane…

Q: What does it mean when a membrane is described as selectively permeable?

A: A selectively permeable membrane is one that permits the passage of some substances through it while…

Q: If the phosphoglycerolipids constituting the framework of the plasma membrane, these are what give…

A: Plasma membrane is the external boundary of the cell. It is a dynamic and quasi fluid structure. It…

Q: As part of their function, membrane-bound organelles, such as mitochondria and the en- doplasmic…

A:

Q: WHat do the terms "freely permeable" or "impermeable mean with respect to the cell membrane? What…

A: The cell membrane or the plasma membrane is the outermost covering of the cell. It is a phospholipid…

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: Below is the skeletal formula of a molecule typically found in cell membranes. What type of molecule…

A: The plasma membrane of the cell determine the movement of molecules in and out of the cells. The…

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.