Photosynthesis and Cellular Respiration

4. This is the process plants use to change light energy into chemical energy (food).
6. The special word for a living thing that makes its own food, like a plant.
8. respiration: The process where a cell uses oxygen to break down food for energy. This happens in the mitochondria.
10. The tiny powerhouses inside a cell where cellular respiration takes place to make energy.
13. This is a general name for an organism that has to eat other living things to get its energy, like an animal.
14. The main part of a plant's food, which is made during photosynthesis. It is rearranged to build new parts. (Hint: Think big, like all the living material).
16. The main source of energy for almost all life on Earth.
17. A type of fuel, like ethanol, made from living things (like corn or algae).
18. A substance in food that stores a lot of energy; butter and oil are examples.

1. A sugar, like glucose, that organisms use for energy.
2. The tiny green part inside a plant cell where photosynthesis happens.
3. A large molecule made of many sugars that forms the strong walls of plant cells.
5. A substance in food that helps build and repair muscles and other body parts.
7. Any living or non-living thing that takes up space and has weight. All food is made of this.
8. The green color in plants that is very important for catching light energy for photosynthesis.
9. DIOXIDE A gas plants take in from the air to build sugar during photosynthesis.
11. What matter and energy do as they move between living and non-living things.
12. The main product of photosynthesis that humans and animals breathe in.
15. Tiny hole in a leaf that lets carbon dioxide gas enter and oxygen gas leave.