Photosynthesis

8. a colorless, odorless gas that is produced during respiration and combustion (burning).
9. the distance between two consecutive crests of a wave.
10. the part of a plant that absorb light and help feed plants
11. when triggered by sunlight, it and CO2 spark photosynthesis
12. produced by plants and consumed by mammals
14. the part of a plant that carries water to other parts of the plant
15. organism that can produce its own food using light, water, carbon dioxide, or other chemicals.

1. a tiny unit of distance, equal to one billionth of a meter.
2. a simple sugar that is a major energy source for cells
3. the type of radiation that is given off by the sun and absorbed by the leaves of plants
4. the part of the plant that blooms to help plants reproduce. People decorate their houses with them.
5. the part of the plant that absorbs water from the ground to help feed plants
6. __________ factor the required substance that is in shortest supply and therefore limits growth or other life processes.
7. an organism deriving its nutritional requirements from complex organic substances. Humans are this.
8. a green pigment in plants that absorbs light energy and converts it into a form the plant can use for photosynthesis.
13. a process in which plants use energy from light to produce glucose and oxygen from carbon dioxide and water