| A | B |
| cotyledon | nutrition stores for developing embryo--one or two per seed--not capable of photosynthesis |
| endosperm | nutrient rich material absorbed by embryo |
| testa | seed coat that protects seed |
| radicle | embryonic root |
| hypocotyl | embryonic stem that supports cotyledons |
| epicotyl | area above hypocotyl that supports true leaves |
| coleoptile | tough tissue that protects delicate leaves |
| coleorhiza | tough tissue that protects developing radicle |
| true leaves | first leaves that are capable of photosynthesis |