| A | B |
|---|
| photosynthesis | The process by which plants capture light energy and use it to make food from carbon dioxide and water. |
| cell wall | The boundary that surrounds the cell membrane in some cells. |
| cellulose | A chemical that makes the cell walls of plants rigid and strong. |
| chloroplast | The structure of plant cells in which food is made. |
| vacuole | A large sac-like storage area in a cell. |
| tissue | A group of similar cells that perform a specific function in an organism. |
| chlorophyll | A green pigment found in the chloroplasts of plants as well as in algae and some bacteria. |
| cuticle | The waxy, waterproof layer that covers the leaves and stems of some plants. |
| vascular tissue | The internal transporting tissue in some plants that is made up of tubelike structures. |
| fertilization | The joining of a sperm cell and an egg cell. |
| zygote | A fertilized egg. |
| sporophyte | The stage in the life cycle of a plant in which the plant produces spores for reproduction. |
| gametophyte | The stage in the life cycle of a plant in which the plant produces gametes, or sex cells. |
| gamete | A sperm cell or an egg cell. |
| accessory pigment | A yellow, orange, or red pigment found in plant cells. |
| nonvascular plant | A low-growing plant that lacks vascular tissue. |
| rhizoid | The thin, rootlike structure that anchors a moss and absorbs water and nutrients for the plant. |
| bog | A wetland where sphagnum moss grows on top of acidic water. |
| peat | The blackish-brown material consisting of compressed layers of dead sphagnum mosses that grow in bogs. |
| vascular plant | A plant that has vascular tissue. |
| frond | The leaf of a fern plant. |
