•A Cell Membrane:This double plasma membrane, consisting of a phospholipid bilayer, is a selectively permeable membrane, allowing some molecules to pass in unimpeded while barring entry to others. It provides shape and protection to all cells. •Cytoplasm:Also called cytosol, the cytoplasm is ...
A semipermeable membrane is a continuous sheet or film of a suitable material (natural or synthetic) which contains very small pores.
What is a Semipermeable Membrane? Discussion Comments By scifreak — On Apr 20, 2011 Since cells are selectively permeable, does that mean they can be selective and allow prescribed medications into the blood stream? For example, I take high blood pressure medicine. Is the reason it works is...
it is the diffusion of solutes across a selectively permeable membrane. a selectively permeable membrane is one that allows only specific ions and molecules to pass through, while it obstructs the movement of others. osmosis: it is the movement of solvent molecules from the region of lower ...
Two solutions of differing glucose concentrations are placed in a container separated by a selectively permeable membrane that restricts large molecules like glucose but allows the free diffusion of water. What will be the glucose concentration in the con ...
Is turgor a pressure? Turgor pressure isthe hydrostatic pressure in excess of ambient atmospheric pressurewhich can build up in living, walled cells. Turgor is generated through osmotically driven inflow of water into cells across a selectively permeable membrane; this membrane is typically the plasma...
What part of the cell is selectively permeable? What structure provides support and protection for plant cells? What part of a plant cell covers and protects it? What are plastids in a plant cell? What kind of cells make up the basement membrane?
What does a hypertonic solution do to a cell? What is a turgid cell? How does the sodium gradient drive the movement for other solutes in the nervous system? What are a few ions that must routinely move across cell membranes? Diffusion of water across a selectively permeable membrane is cal...
A Final Word By definition, osmosis is the movement of any solvent through a selectively permeable membrane into an area of higher solute concentration, the result of which will be an equalizing of solute concentration on either side of the membrane. ...
Why is a cell membrane described as a 'fluid mosaic'? Membranes are selectively permeable. What does this mean? If cell membranes WEREN'T selectively permeable to compounds like sugars and amino acids, what would happen to the nutrients that the...