Across
- 4. Cell organelle that stores materials such as water
- 7. process by which plants and some other organisms use light energy to convert water and carbon dioxide into oxygen and high-energy carbohydrates such as sugars and starches
- 11. law that states that mass cannot be created or destroyed in ordinary chemical and physical changes
- 12. Anything that has mass and takes up space
- 13. A cell structure that controls which substances can enter or leave the cell.
- 14. An organism that makes its own food
- 16. non-renewable, polluting resources formed from the remains of plants and animals
- 18. An organism that cannot make its own food.
- 19. describes non-living or physical factors in the environment
- 23. the process by which cells use oxygen to produce energy from food
- 24. law that states that energy cannot be created or destroyed but can be changed from one form to another
Down
- 1. Organisms that provide energy to primary consumers (i.e., plants)
- 2. Powerhouse of the cell, organelle that is the site of ATP (energy) production
- 3. An organelle found in plant and algae cells where photosynthesis occurs
- 5. Energy stored in chemical bonds, such as that obtained from the processing of food
- 6. A simple sugar that is an important source of energy; produced in photosynthesis and broken down in cellular respiration
- 8. A rigid layer that surrounds the cells of plants
- 9. Control center of the cell
- 10. An organism that obtains energy and nutrients by feeding on other organisms or their remains.
- 11. A rapid reaction between oxygen and fuel that results in fire
- 13. The organic circulation of carbon from the atmosphere into organisms and back again
- 15. Describes living factors in the environment.
- 17. bacteria, fungi, and organisms that obtain energy from wastes or dead organisms
- 20. A green pigment found in the chloroplasts of plants, algae, and some bacteria
- 21. A jellylike fluid inside the cell in which the organelles are suspended
- 22. The ability to do work or cause change