flower and fruit for 8th
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The document defines and describes the key parts of flowers including the androecium, gynoecium, pedicel, receptacle, sepals, calyx, petals, corolla, stamens, anther, filament, stigma, style, ovary, ovule, and describes the processes of pollination, cross-pollination, self-pollination. It also defines the two types of fruits - fleshy fruits where the ovary wall becomes fleshy, and dry fruits where the ovary wall becomes dry at maturity.
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flower and fruit for 8th
- 3. Androecium Androecium is composed of stamens. Each stamen which represents the male reproductive organ consists of a stalk or a filament and an anther. Gynoecium Gynoecium is the female reproductive part of the flower and is made up of one or more carpels.
- 4. Pedicel • The flower stem
- 5. Receptacle • The place on the stem where floral organs attach and originate.
- 6. Sepals • Usually green; leaflike structures that protect the flower, as it forms and emerges.
- 7. • Sometimes sepals are colorful
- 8. Calyx • The group of sepals on a flower
- 9. Petals • Located just inside the sepals • Leaf-like and often very colorful • Attract pollinators
- 10. Corolla • The collection of petals on a flower
- 11. Stamens • Male reproductive parts of a flower • Arranged around the female parts
- 12. Anther • Part of the stamen • Produces and holds pollen
- 13. Filament • Stalk that holds up the anther
- 14. Stigma • Found at the end of the pistil • Has a sticky surface to catch pollen
- 15. Style • The neck of the pistil
- 16. Ovary • Part of the pistil that contains the ovules
- 17. Ovule • The part of the flower in which the eggs are produced and seeds develop
- 18. Pollination
- 20. Bee goes into flower
- 22. Bee transports into another flower
- 24. Cross-Pollination • Insects other than bees may also cross-pollinate such as: Butterflies Mosquitos Caterpillars
- 25. Self-pollination
- 26. Self Pollination • Bees and other animals bring pollen from the flower’s own anthers to its stigma.
- 27. The bees collect the pollen from the Anther and then gives it the Stigma
- 28. fruits There are two types of fruits 1:fleshy fruits –wall of ovary becomes flashy and bulky in some fruits are called fleshy fruits e..g. mango lemon 2:dry fruits: the wall of ovary becomes dry in some fruits at their maturity e.g . Pea , green gram
- 29. Fleshy fruit
- 30. Dry fruits