Cell Structure and Function

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Across
  1. 2. the movement of individual molecules of a substance through a semipermeable barrier from an area of higher concentration to an area of lower concentration
  2. 6. diffusion the diffusion of solutes through transport proteins in the plasma
  3. 7. spontaneous passage or diffusion of water or other solvents through a semipermeable membrane
  4. 11. solution containing a lower amount of solute in comparison to the solute concentration in other solutions, across a semipermeable membrane.
  5. 14. the pressure that must be applied to the solution side to stop fluid movement when a semipermeable membrane separates a solution from pure water.
  6. 15. separates the interior of the cell from the outside environment
  7. 16. membranous organelle that has a large surface area covered in ribosomes
  8. 19. a two-layered arrangement of phosphate and lipid molecules that form a cell membrane.
Down
  1. 1. any self-regulating process by which an organism tends to maintain stability while adjusting to conditions that are best for its survival.
  2. 3. a membrane that allows only some substances and molecules to pass into or leave the cell.
  3. 4. any cell or organism that possesses a clearly defined nucleus
  4. 5. enclosed organelles that contain an array of enzymes capable of breaking down all types of biological polymers—proteins, nucleic acids, carbohydrates, and lipids.
  5. 7. a subcellular structure that has one or more specific jobs to perform in the cell,
  6. 8. the structure in a cell that contains the chromosomes
  7. 9. any external solution that has a high solute concentration and low water concentration compared to body fluids
  8. 10. organisms whose cells lack a nucleus and other organelles
  9. 12. states that all biological organisms are composed of cells; cells are the unit of life and all life come from preexisting life.
  10. 13. the smallest unit that can live on its own and that makes up all living organisms and the tissues of the body.
  11. 17. integral membrane proteins that serve as channels in the transfer of water, and in some cases, small solutes across the membrane
  12. 18. any external solution that has the same solute concentration and water concentration compared to body fluids.