Internal Structures and Functions of Plants

2. The _______ is a tiny opening on a leaf that takes in carbon dioxide from air and releases other gases from the plant.
5. During photosynthesis, energy from the sun is used to __________ water and carbon dioxide from the air into sugar and oxygen.
8. The leaf of a plant is where the process of ___________________ occurs.
9. The ovary of a flower is the female reproductive part that helps the plant ___________.
11. The ovaries of a flower has a specific __________ to produce eggs and provide a space for seeds to develop.
13. The cactus's internal structures allow it to store water for a long time and __________ in very dry weather.
14. A __________ is made of different structures, or organized parts, that work together to help the organism survive.
15. The kinds of internal structures plants have depend on their ______________.
16. During photosynthesis, a plants needs __________, carbon dioxide and water.

1. A plant's internal ____________ can best be seen and understood by dissecting the plant.
3. Photosynthesis happens inside ______________, which are found inside leaves.
4. The xylem moves materials in only one direction, _________ from the roots to all the plant parts.
6. The plant's ___________ system is a collection of small tubes that transports materials up, down and throughout the plant.
7. The _______ carries water with dissolved nutrients from the roots to all plant parts.
10. The _______ moves in many directions and transports food from the leaves to all other parts of the plant.
12. Some of the most important functions of the structures of a plant are survival, growth, ______________, and reproduction.