Words of This Topic
| Word | Meaning |
| Gamete | the special reproductive cell made by a reproductive organ |
| Unisexual | having the male and female organs in separate individuals |
| Bisexual | having both organs in one individual |
| Zygote | the first cell formed when two gametes join |
| Gynoecium | the female reproductive organ of a flower |
| Androecium | the male reproductive organ of a flower |
| Pollen sac | the sac inside an anther where pollen grains form |
| Pollen grain | a tiny single celled grain with two covering layers |
| Nectar | the sweet juice held in a flower |
| Agent | the wind, water, insect or bird that carries pollen |
| Germination | the sprouting of a pollen tube from a pollen grain |
| Pollen tube | the tube that grows through the style to the ovule |
| Secondary polar nucleus | the nucleus inside the ovule that takes part in the second fertilization |
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