| A | B |
| flower | the plant organ responsible for plant reproduction |
| petal | the brightly colored part of the flower that attracts the insects; needed for pollination |
| sepal | the green, leaf-like part of the plant that protects the flower in the bud; found below the main petals |
| anther | the part of the flower that contains the pollen grains (the male sex cells) |
| filament | the part of the flower that supports the anther |
| pollen grains | the male sex cells |
| ovary | the part of the flower that contains the female sex cells |
| style | the slender part of the pistil between the ovary and the stigma |
| stigma | the part of the plant that receives the male sex cell or pollen |
| pollination | the process by which plants are fertilized |
| self-pollination | pollen is transferred from stamen to stigma on the same plant |
| cross-pollination | pollen is transferred from the stamen of 1 plant to the stigma of another plant |
| fertilization (Am) / fertilisation (Br) | the joining of sex cells (the joining of the nuclei of the pollen grain and ovule) |
| germination | the beginning of growth, when the plant first begins to sprout |
| *stamens | the male parts of the flower |
| *carpels | the female parts of the flower; consists of the stigma, style and ovary |
| *ovule | the female sex cells; develop into seeds after fertilization |
| *perfect flower | flowers that have both male and female parts |
| *imperfect flower | flowers that do not have both male and female parts |