1. Plant Vocabulary

2. Photosynthesis Transforms Radiant Energy  Chemical Energy Water + Carbon Dioxide sunlight  Glucose (sugar) + Oxygen H 2 O + CO 2  C 6 H 12 O 6 + O 2 Happens in Plants  Leaf  Chloroplast

3. RadiantEnergy AKA… –Light Energy –Solar Energy Energy given off by the Sun ALL energy on Earth originated from the Sun

4. Chemical Energy Result of photosynthesis Energy transformed in plants Plants and animals use this energy to move and grow

5. Chemical Equation Summary of what happens in a chemical reaction Identifies elements involved and # atoms of each Includes…. Reactants  Products Example:

6. Chemical Formula Summarizes what a substance is made of (elements & # atoms of each) Example: H 2 O Water is made of… –2 atoms of Hydrogen (2 is a subscript) –1 atom of Oxygen

7. Reactants Substance(s) that exist before a chemical reaction Usually listed first in a chemical equation Example: H 2 O + CO 2  C 6 H 12 O 6 + O 2

8. Products Substance(s) that are the result of a chemical equation Usually listed last Example: H 2 O + CO 2  C 6 H 12 O 6 + O 2

9. Chloroplast Site of photosynthesis Organelle found in a plant cells Contains chlorophyll

10. Chlorophyll Pigment that makes leaves green Responsible for capturing sunlight

11. Stomata Pores on a plant that allow gas exchange for photosynthesis …. –Carbon Dioxide (CO 2 ) enters –Oxygen (O 2 ) exits –Water (H 2 O) exits during transpiration Mostly found on leaves

12. Pistil Female reproductive organ in a flower Where seeds are developed Can be 1 or multiple in a flower

13. Stamen Male reproductive organ of a flower Covered with pollen on the ends

14. Xylem Transport system Moves water and some nutrients from Roots  rest of plant New xylem are made each year on the outside of a plant (only lives 1 year)

15. Phloem Transport system Moves Glucose/Sugar from chloroplast  rest of plant Phloem….photosynthesis

16. Homeostasis Process of an organism maintaining balance Things that need to be balanced…water, temperature

17. Stimulus Cause Happens 1 st Types of Stimuli –External (outside) –Internal (internal) The SUN is an example of an external stimuli

18. Response Effect Reaction Happens 2 nd The plant’s growth toward the light

19. Tropism Plant growth response to stimuli –Common stimuli are light, gravity, water

20. Phototropism Plant’s response to light Photo = Light

21. Geotropism / Gravitropism Plant’s growth response to gravity –Positive grows TOWARD –Negative grows AWAY Geo = Earth

22. Hydrotropism Response of a plant’s roots to water Hydro = Water

23. Turgor Pressure Force of water pushing on a plant cell’s vacuole A – sufficient (plenty) water to make plant stand upright (stiff, rigid) B – insufficient (lacking) water, the plant wilts or bends

24. Emergence of a Seedling Seed sprouting out of the ground Requires an unbalanced force that results in motion Sometimes called germination

26. Flower Leaf Stem Root

28. Petal Pistil – female organ Stamen – male organ Where seeds are produced Where pollen is produced