Cell Membrane & Transport

5. ___________ proteins allow passage of hydrophilic substances across the membrane
8. Proteins and Phospholipid bilayer make up ____________.
11. __________ are embedded in the membrane giving a “mosaic” appearance.
14. changes function of cell.
15. ___________ transport is the movement across the membrane with no energy investment.
16. facilitates metabolic pathway.
17. allow cell to be recognized by membrane proteins of other cells.
21. Solute concentration is less than that inside the cell. What kind of solution?
22. _____ proteins have a hydrophilic channel that certain molecules or ions can use as a tunnel.

1. What part of the membrane has an affinity to water?
2. ____________ diffusion is the movement of molecules down their concentration gradient with the use of transport proteins.
3. _____________ is the tendency for molecules to move down their concentration gradient until it reaches equilibrium.
4. _____ proteins bind to molecules and change the shape to shuttle them across the membrane.
6. _______ transport is used for transporting large molecules.
7. allow passage or shuttle of particular molecules.
9. _________ is the diffusion of water.
10. The membrane is ______________ permeable because of the hydrophilic/ hydrophobic structure.
12. Solute concentration is greater inside of cell. what kind of solution?
13. forms junctions with other cells.
17. Solute concentration is equal inside and outside of cell. what kind of solution?
18. The hydrophobic portion of the bilayer does not interact well with _______.
19. maintain and stabilize cell shape.
20. _________ transport requires energy for molecules to move against their gradient.