Plants by Muhammad

1. A symbolic formula that represents the essential features of a chemical reaction.
4. A protective, waxy layer on a leaf's outer surface that reduces water loss.
5. A group of similar cells working together to perform a specific function.
6. Specialized cells surrounding stomata that control their opening and closing.
8. Gaps within the spongy mesophyll of a leaf that allow for gas diffusion.
14. A layer of tightly packed cells below the upper epidermis that absorbs sunlight for photosynthesis.
16. Pores on a leaf's surface that regulate gas exchange and water loss.
18. A plant that lacks a specialized system for transporting water and nutrients.
19. The vascular bundles within a leaf that transport water, nutrients, and sugars.
21. The green pigment in plants that absorbs light for photosynthesis.
22. The bottom layer of a leaf that contains most of the stomata.

2. Small, nonvascular plants that grow in dense mats and reproduce via spores.
3. Plants convert light energy into chemical energy to create their own food.
7. An organism that obtains its energy and nutrients by consuming other organisms.
9. A layer of loosely arranged cells with air spaces, located beneath the palisade layer.
10. Flowering plants that produce seeds enclosed within a fruit.
11. A plant that has unenclosed, or "naked," seeds.
12. The inner tissue of a leaf where the majority of photosynthesis occurs.
13. The organelle in plant cells where photosynthesis takes place.
15. An organism that makes its own food from simple inorganic substances.
17. The transparent, top layer of cells on a leaf that allows light to pass through.
20. A plant with a specialized system of transport tissues for moving water and nutrients.