0
What else can I help you with?
What is the movement of molecules through a membrane due to the pressure of a liquid on that membrane?
Osmosis.
Which process would be describe the movement of sugar molecules through membrane from a region of higher concentration to a region of lower concentration?
This process is called passive transport or facilitated diffusion, where sugar molecules move down their concentration gradient without requiring energy input from the cell. Proteins in the membrane facilitate the movement of sugar molecules across the membrane.
What is the The uphill movement of a substance through a living cell membrane?
Active Transport
How do water-soluble molecules diffuse through the cell membrane?
Water-soluble molecules diffuse through the cell membrane by passing through protein channels or transporters that are embedded in the membrane. These channels and transporters allow the molecules to move across the membrane, from an area of high concentration to an area of low concentration, without requiring energy.
What is the movement of water molecules through a sectively-permeable cell membrane?
osmosis
What are molecules that helps control the movement of a substance through the cell membrane?
Proteins
How do large polar molecules pass through the membrane?
Large polar molecules pass through the membrane by using specific transport proteins that facilitate their movement across the lipid bilayer.
Which term refers to the movement of water molecules through a selectively permable membrane?
diffusion
Why hydrophobic molecules can easily cross the plasma membrane?
Hydrophobic molecules can easily cross the plasma membrane because they are nonpolar and can easily dissolve in the lipid bilayer, which is primarily composed of phospholipids with hydrophobic tails. This compatibility allows them to pass through the membrane without requiring energy or specific transport proteins. As a result, small hydrophobic molecules, such as oxygen and carbon dioxide, can diffuse freely across the membrane, facilitating their movement in and out of the cell.
Water passes through a cell membrane by?
What_is_the_passage_of_water_through_cell_membranes_calledPassage of water through cell membranes occurs through osmosis.
What are 5 Mechanism of cellular exchange?
Passive diffusion: Movement of small, non-polar molecules across the cell membrane. Facilitated diffusion: Movement of specific molecules through protein channels in the cell membrane. Active transport: Movement of molecules against the concentration gradient using energy from ATP. Endocytosis: Uptake of large molecules or particles by the cell through invagination of the cell membrane. Exocytosis: Release of molecules or waste from the cell by fusion of vesicles with the cell membrane.
Why does osmosis require a semipermeable membrane while diffusion does not?
Osmosis involves the movement of water molecules across a semipermeable membrane from an area of lower solute concentration to an area of higher solute concentration. The presence of a semipermeable membrane is necessary to prevent the movement of solute molecules while allowing water molecules to pass through. Diffusion, on the other hand, is the movement of molecules from an area of higher concentration to an area of lower concentration and does not require a membrane for movement.
