Unit 11 Vocab Alexander Karpeles

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Across
  1. 2. the stable condition of an organism and of its internal environment.
  2. 3. the movement of ions or molecules across a cell membrane into a region of higher concentration, assisted by enzymes and requiring energy.
  3. 7. molecules of a solvent tend to pass through a semipermeable membrane equalizing the concentrations on each side of the membrane.
  4. 9. the process of spontaneous passive transport.
  5. 10. movement of ions and other atomic or molecular substances across cell without need of energy input.
  6. 11. Capable of being permeated.
  7. 12. A metabolic process or other activity occurring within a cell.
  8. 14. high-energy molecule that stores the energy we need
  9. 17. a group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction.
  10. 18. A protein that transports specific substance. (can be active or passive)
Down
  1. 1. membrane that forms the external boundary of the cytoplasm of a cell.
  2. 4. a two-layered arrangement of phosphate and lipid molecules that form a cell membrane.
  3. 5. The act or means of moving molecules or ions across the cell membrane.
  4. 6. the process of particles moving from an area with a higher number of particles to an area with a lower number of particles.
  5. 8. Diffusion is the net passive movement of particles.
  6. 13. a protein that allows the transport of specific substances across a cell membrane. (is always passive)
  7. 15. A carrier protein that transports protons across biological membranes.
  8. 16. a substance dissolved in another substance.