| A | B |
|---|
| cytoplasm | jelly-like substance that surrounds all cell organelles |
| cell wall | rigid outer boundary that gives shape and protection to a plant cell |
| cell (plasma) membrane | the inner boundary that lets some things into a cell and some things out of a cell |
| nucleus | controls all of a cell's activities (contains DNA) |
| vacuole | a cell structure that can store food, water and wastes |
| chloroplast | the structure that is responsible for making food for a plant cell (contains the chemical chlorophyll) |
| cellulose | a chemical found in the cell wall of plant cells that make them rigid or stiff |
| chlorophyll | a green pigment that traps the energy of the sun for photosynthesis |
| photosynthesis | the process by which green plants make food |
| carbon dioxide and water | the raw materials or ingredients for photosynthesis |
| sugar and oxygen | the products (what is made) of photosynthesis |
| sunlight | the energy source needed for water and carbon dioxide to combine chemically |
| accessory pigments | red, orange and yellow pigments that can only be seen in the fall when plants stop producing chlorophyll |
| cuticle | the waxy, waterproof layer that covers the tops of most leaves |
| stomata | tiny openings or holes on the underside of leaves that let gases into and out of a leaf |
| fertilization | when two cells join together for the purposes of reproduction |
