1. The cell membrane or plasma membrane is a biological membrane that separates the interior of all cells from the outside environment.
2. A semipermeable membrane, also termed a selectively permeable membrane, apartially permeable membrane or a differentially permeable membrane, is a membrane that will allow certain molecules or ions to pass through it by diffusion and occasionally specialized "facilitated diffusion".
3. Osmosis is the net movement of solvent molecules through a partially permeable membrane into a region of higher solute concentration, in order to equalize the solute concentrations on the two sides.
4. Diffusion describes the spread of particles through random motion from regions of higher concentration to regions of lower concentration.
5.aerbic or anaerobic respiration.
6. the physiological process that enables animals to exchange carbon dioxide, the primary product of cellular respiration, for fresh air
7. Simple diffusion. Oxygen and carbon dioxide can both go directly through the lipid bilayer.
8. the amount of carbon dioxide fluid is greater outside the cell then the carbon dioxide will diffuse in so that the amount of carbon dioxide inside and outside of the cell will be an equillibrium. it is more outdide due to respiration.
9. same as co2
10. A solvent is a liquid, solid, or gas that dissolves another solid, liquid, or gaseous solute, resulting in a solution that is soluble in a certain volume of solvent at a specified temperature.
11. n chemistry, a solution is a homogeneous mixture composed of only one phase. In such a mixture, a solute is a substance dissolved in another substance, known as a solvent . Thesolvent does the dissolving. The solution more or less takes on the characteristics of the solvent including its phase, and the solvent is commonly the major fraction of the mixture.
13. its sol. which has lower osmotic pressure than any other sol.
14. its effective osmole concentration is the same as solute concentration of another. sol. with which its compared.
15. it has larger concentration of substance on the outside of a cell than is found within the cells themselves.