Across
- 1. the movement of molecules across a cell membrane into a region of higher concentration
- 3. a sugar which is an energy source in living organisms and is a component of many carbohydrates
- 4. a process in which a molecule passes through a cell membrane via a concentration gradient
- 5. a microscopic membrane of lipids and proteins which forms the external boundary of the cytoplasm of a cell or encloses a vacuole
- 8. a process by which molecules of a solvent pass through a semipermeable membrane from a less concentrated solution into a more concentrated one
- 9. having a higher osmotic pressure than a particular fluid
- 10. the spreading of something more widely
- 12. colorless, odorless gas produced by burning carbon and organic compounds
- 13. the process by which plants other organisms use sunlight to make food from carbon dioxide and water
- 14. a nonmetal which has two main forms and also occurs as impure form in charcoal, soot, and coal
- 16. the processes by which water circulates between the earth's oceans, atmosphere, and land
- 18. a colorless, transparent, odorless, tasteless liquid
Down
- 1. respiration using oxygen
- 2. process through which cells convert sugars into energy
- 4. the cycle that describes the movement of phosphorus through the lithosphere, hydrosphere, and biosphere
- 6. having a lower osmotic pressure than a particular fluid
- 7. a change in global or regional climate patterns
- 11. relating to a solution having the same osmotic pressure as some other solution
- 15. a colorless, odorless gas
- 17. a compound of an adenosine molecule bonded to three phosphate groups