Unit 5 Review 1

2. an organism that makes its own food using sunlight or chemical energy
3. the process by which plants and some other organisms use sunlight to make glucose from carbon dioxide and water
4. a diagram that shows the amount of energy available at each trophic level
5. an organelle in plant cells where photosynthesis occurs
10. the position an organism occupies in a food chain or food web
11. an organism that gets energy by eating other organisms
14. an organism that must obtain food by consuming other organisms
16. the total amount of living organic matter in a given area or trophic level
17. a model that shows the transfer of energy from one organism to another in a single pathway
19. the maximum population size an environment can support over time
20. cellular respiration that requires oxygen to release energy from glucose
22. an organism that breaks down dead organisms and wastes and returns nutrients to the environment

1. the release of energy from glucose without the use of oxygen
6. a simple sugar used by cells as a source of energy
7. an anaerobic process that releases a small amount of energy from glucose
8. the movement of energy through organisms in an ecosystem
9. the process by which cells break down glucose to release energy in the form of ATP
12. organelles where cellular respiration occurs and ATP is produced
13. all the different populations living and interacting in the same area
15. all the members of the same species living in the same area
17. a model showing many interconnected food chains in an ecosystem
18. a molecule that stores and transfers energy for cell activities
21. an organism that can produce its own food from sunlight or chemicals
23. all the living and nonliving things in an area and the interactions between them