Osmosis is considered a special case of diffusion because water requires energy and a protein to get through the lipid bilayer water is moving against its own gradient it is the net movement of solvent down its own gradient a solute moves against its gradient

Which of the following is NOT correct: The quantity of ER inside a cell fluctuate depending on cell size ER allowing molecules to move from one part of the cell to another The ER function is act as an internal transport system short polypeptides containing less than 20-30 amino acids called .. O oligopeptides O polypeptide O long chain of protein

Mark the flow of water with an arrow for cells that have been placed in solutions of differing tonicity. Indicate what will happen to a plant and animal cell under each of these conditions. Direction of osmosis Plant cell Animal cell shape shape minor swelling The solute concentration outside the cell is isotonic (or equal) to the inside of the cell. No change swelling and lysis plasmolysis crenation Reset Zoom (a) Outside isotonic The solute concentration outside the cell is hypertonic to the inside of the cell. (b) Outside hypertonic The solute concentration outside the cell is hypotonic to the inside of the cell. (c) Outside hypotonic Oo Solute Cytosol ©2018 McGraw-Hill Education. Check m

Which of the following is correct about a symporter?     it is a form of passive transport     it moves one substance at a time against its concentration gradient     it utilizes ATP     it moves large substances using endocytosis/exocytosis     none of the above are correct

Which transport mechanism would allow a solute to move from its area of low concentration to its area of high concentration, another words against its concentration gradient? secondary active transport osmosis channel mediated facilitated diffusion carrier mediated facilitated diffusion simple diffusion Aa JO stv A К Pro

Why does water enter a cell that is placed in a hypotonic solution?

The protein galactoside permease transports sugars like lactose against a concentration gradient by coupling transport with H* which moves with a concentration gradient. This is an example of Simple diffusion Facilitated diffusion Primary active transport Secondary active transport

Which one of the following pieces of evidence would prove that a substance enters a cell by.active rather than passive transport? The substance being moved is water The substance enters the cell by going down its gradient The breakdown of ATP is needed The substance is moved across the cell membrane by a carrier protein

Which of the following factors will negatively impact the rate of diffusion of a molecule? A media that is highly viscous A short distance between two concentrations of the molecule A low difference in the concentration of the molecule across the media A warm environment

This is from osmosis in animal cells