| A | B |
|---|
| Blade | the flattened green part of a leaf that varies in shape from plant to plant |
| Chlorophyll | a green chemical that absorbs energy from the sun during photosynthesis |
| Guard Cells | the kidney-shaped cells found on either side of each stoma on a plant leaf. Guard cells control the passage of gases into and out of the plant by causing the stomata to open and close |
| Organ | part of an animal or plant that performs a specialized function |
| Petiole | the stalk that fastens a leaf to the stem of a plant |
| Photosynthesis | the process by which green plants and plantlike organisms use energy from sunlight to convert water and carbon dioxide into sugars that can be used for food |
| Pigment | a material that gives a substance its color by absorbing some colors of light and reflecting others |
| Starch | a white, tasteless, oderless food substance produced and stored by plants |
| Stomata | slitlike openings located mainly on the underside of a leaf that allow water vapor and other gases to pass into and out of the leaf |
| Veins | in plants, the channels through which materials move into and out of a leaf and together help to strengthen the leaf |
| Respiration | the process by which organisms break down food to release energy |
| Cuticle | waxy protective layer on the stems and leaves of land plants that helps conserve water |
| Gymnosperm | a plant that produces seeds on the scales of female cones |
| Angiosperm | a flower-producitn plant in which the seed is enclosed in a fruit |
| Ovule | female reproductive part |
| Pollen Grain | contains sperm, male reproductive part |
| Stamen | male reproductive part, consists of filament, anther, and pollen grains |
| Anther | male reproductive part, releases pollen grains |
| Filament | male reproductive part, holds anther up |
| Pistil | female reproductive organ, consists of stigma, style, ovary, ovules |
| Ovary | female reproductive organ, swollen base of pistli, where ovules are formed |
| Pollination | pollen grains are transferred from stamen to stigma |
| Stigma | female reproductive part, sticky surface to help catch pollen grains |
| Style | female reproductive part, transports pollen grains to ovary |
| Petal | external part of flower, attracts insects |
| sepal | protects flower |
