PLANT BIOLOGY

3. The main site of photosynthesis in a plant; typically consists of a flattened blade and a stalk (petiole) that joins it to the stem.
4. Contains large amounts of starch, but no chlorophyll, specialized for storage.
8. Hardens cell walls of some plant tissues.
9. System of all the plant’s stems, leaves, and reproductive structures.
12. Flowers contain spores and gametes.
15. The part of a plant’s shoot system that supports the leaves and reproductive structures.
16. The nonliving portion of a plant’s vascular system that provides support and conveys xylem sap from the roots to the rest of the plant.
17. Tiny pores which allow exchange of CO2, and O2 between the surrounding air and the photosynthetic cells inside the leaf.
18. A plant embryo packaged with a food supply within a protective covering.
19. Tissues consisting of cells joined into tubes that transport water and nutrients throughout the plant body.

1. A chloroplast that develops in the absence of light.
2. First leaf to grow from a seed.
4. A flowering plant, which forms seeds inside a protective chamber called ovary.
5. The portion of a plant’s vascular tissue system that transports sugars and other organic nutrients from leaves or storage tissues to other parts of the plant.
6. A naked-seed plant.
7. A functional unit connecting all of the plant’s organs.
10. Contains red, orange, or yellow carotenoid pigments that are water insoluble, impart color to fruits, etc.
11. A plant that lacks xylem and phloem; a seedless non-vascular plant.
13. Contains chlorophyll, internal membranes organized as grana, specialized for photosynthesis.
14. A waxy coating on the surface of stems and leaves that helps retain water.