Across
- 2. a type of atom (a tiny piece) that makes up molecules such as carbon dioxide and energy storage molecules
- 5. a group of atoms joined together in a particular way
- 8. something that is required for a process
- 10. an organism that gets energy storage molecules (such as glucose) by breaking down dead matter
- 14. a type of energy storage molecule
- 15. an organism that needs to eat in order to get energy storage molecules (such as starch and fat)
- 16. a molecule made of carbon and oxygen atoms
- 18. the chemical reaction between oxygen and glucose that releases energy into cells
- 23. a type of energy storage molecule
- 25. something that results from a process
- 26. set of interacting parts forming a complex whole
- 27. the part of a cell where cellular respiration happens
Down
- 1. a molecule that organisms can use to release the energy needed to survive
- 3. the part of a cell where photosynthesis happens
- 4. an ending substance that is made during a chemical reaction
- 6. a closed ecosystem made by humans
- 7. matter that makes up the nonliving parts of an ecosystem, such as air, water, and rocks
- 9. the process by which plants and other producers use energy from sunlight to change carbon dioxide and water into oxygen and glucose (and energy storage molecule)
- 11. all the living and nonliving things interacting in a particular area
- 12. an organism that can make its own energy storage molecules (such as glucose)
- 13. living things, such as plants, animals, and bacteria
- 17. matter matter that makes up the living and dead organisms in an ecosystem
- 19. a starting substance that is part of a chemical reaction
- 20. a type of energy storage molecule made of many glucose molecules connected together
- 21. the tiny pieces that all matter- all the stuff in the world-is made of
- 22. a molecule that organisms can use to release energy, and that is made of carbon, hydrogen, and oxygen atoms
- 24. to link two or more things