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12th - the flower - biology
- 1.
- 2. LEARNING OUTCOME To studythe structure of bisexual flower To summarise essential and non-essential reproductive whorls
- 3. LEARNING OBJECTIVE DISCUSS INDETAIL ABOUT THE STRUCTURE OF A BISEXUAL FLOWER?
- 4. The Flower StructureOf A Bisexual Flower
- 5. The Flower StructureOf A Bisexual Flower BISEXUAL FLOWER
- 6. The Flower StructureOf A Bisexual Flower BISEXUAL FLOWER • Bisexual or perfect flowers have both male (androecium) and female (gynoecium) reproductive structures, including stamens and an ovary.
- 7. The Flower StructureOf A Bisexual Flower UNISEXUAL FLOWER • A flower that has only one reproductive structure, either male or female, is called a unisexual flower.
- 8. The Flower StructureOf A Bisexual Flower STAMINATE FLOWER • A unisexual flower, which contains only androecium is called a male or Staminate flower.
- 9. The Flower StructureOf A Bisexual Flower PISTILLATE FLOWER • A unisexual flower, which contains only gynoecium is called a female or Pistillate flower.
- 10. The Flower StructureOf A Bisexual Flower NEUTER FLOWER • A flower in which both male and female reproductive organs are absent is called a neuter flower.
- 11. The Flower SEXUALITYIN PLANTS TWO TYPES • MONOECIOUS • DIOECIOUS
- 12. The Flower MONOECIOUSPLANT • If the male and female flowers grow on the same plant, then the plant is said to be a monoecious plant. • E.g. Pumpkin, Maize, Cucumber
- 13. The Flower DIOECIOUSPLANT • If the male and female flowers grow on separate plants, then the plant is said to be a dioecious plant. • Examples: Palm, Papaya.
- 14. The Flower COMPLETEAND INCOMPLETE FLOWERS
- 15. The Flower COMPLETEAND INCOMPLETE FLOWERS • When all the four whorls of the flower are present, it is called a complete flower.
- 16. LEARNING OUTCOME To studythe structure of bisexual flower To summarise essential and non-essential reproductive whorls
- 17. The Flower COMPLETEAND INCOMPLETE FLOWERS • When all the four whorls of the flower are present, it is called a complete flower. • All bisexual flowers are generally complete flowers. • Example: Hibiscus
- 18. The Flower COMPLETEAND INCOMPLETE FLOWERS • Essential/ Reproductive Whorls
- 19. The Flower COMPLETEAND INCOMPLETE FLOWERS • Essential/ Reproductive Whorls • The whorls that are directly associated with the process of reproduction.
- 20. The Flower COMPLETEAND INCOMPLETE FLOWERS • Essential/ Reproductive Whorls • The whorls that are directly associated with the process of reproduction. • E.g. Stamen and Carpel
- 21. The Flower Non-Essential/ Non-Reproductive Whorls • The whorls that are not directly associated with the process of reproduction.
- 22. The Flower Non-Essential/ Non-Reproductive Whorls • The whorls that are not directly associated with the process of reproduction. • Help and protect the reproductive parts of the flower • E.g. Calyx And Corolla.
- 23. The Flower Non-Essential/ Non-Reproductive Whorls PERIANTH
- 24. The Flower Non-Essential/ Non-Reproductive Whorls PERIANTH • In plants, such as wheat and grasses, the petals and sepals are undifferentiated and together compose the Perianth.
- 25. The Flower Non-Essential/ Non-Reproductive Whorls PETALOID PERIANTH • In some plants, the sepals are not green but appear brightly coloured as the petals.
- 26. The Flower Non-Essential/ Non-Reproductive Whorls PETALOID PERIANTH • These sepals are called petaloid sepals, and the perianth is called a petaloid perianth.
- 27. The Flower Non-Essential/ Non-Reproductive Whorls PETALOID PERIANTH • These sepals are called petaloid sepals, and the perianth is called a petaloid perianth. • E.g. Orchid
- 28. The Flower Non-Essential/ Non-Reproductive Whorls SEPALOID PERIANTH • In some plants, the petals appear green in colour and are called sepaloid petals.
- 29. The Flower Non-Essential/ Non-Reproductive Whorls SEPALOID PERIANTH • The perianth is called a sepaloid perianth.
- 30. The Flower Non-Essential/ Non-Reproductive Whorls NECTARIES • Nectar is a sugary liquid produced by plants.
- 31. The Flower Non-Essential/ Non-Reproductive Whorls NECTARIES • The nectar in flowers is secreted by a group of cells, present either at the base of the pistil or on the petals. • These groups of cells are called nectaries.
- 32. The Flower Non-Essential/ Non-Reproductive Whorls NECTARIES • They attract insects such as bees and ants for cross pollination. • In some cases, nectaries are very prominent.
- 33. The Flower Non-Essential/ Non-Reproductive Whorls NECTARIES • E.g. Nasturtium
- 34. LEARNING OUTCOME To studythe structure of bisexual flower To summarise essential and non-essential reproductive whorls
- 35.
Editor's Notes
- #2 An overview of the content of the lesson Must be in the form of a question where appropriate Students should be able to answer the question at the end - either fully, partly or in a way that demonstrates they understand what gaps in their knowledge they need to address Verbs such as to understand / to know / to gain confidence / to learn Ask students to give the question a go and point out that, at the end of the lesson, they should be able to answer fully
- #3 An overview of the content of the lesson Must be in the form of a question where appropriate Students should be able to answer the question at the end - either fully, partly or in a way that demonstrates they understand what gaps in their knowledge they need to address Verbs such as to understand / to know / to gain confidence / to learn Ask students to give the question a go and point out that, at the end of the lesson, they should be able to answer fully
- #4 An overview of the content of the lesson Must be in the form of a question where appropriate Students should be able to answer the question at the end - either fully, partly or in a way that demonstrates they understand what gaps in their knowledge they need to address Verbs such as to understand / to know / to gain confidence / to learn Ask students to give the question a go and point out that, at the end of the lesson, they should be able to answer fully
- #5 An overview of the content of the lesson Must be in the form of a question where appropriate Students should be able to answer the question at the end - either fully, partly or in a way that demonstrates they understand what gaps in their knowledge they need to address Verbs such as to understand / to know / to gain confidence / to learn Ask students to give the question a go and point out that, at the end of the lesson, they should be able to answer fully
- #6 An overview of the content of the lesson Must be in the form of a question where appropriate Students should be able to answer the question at the end - either fully, partly or in a way that demonstrates they understand what gaps in their knowledge they need to address Verbs such as to understand / to know / to gain confidence / to learn Ask students to give the question a go and point out that, at the end of the lesson, they should be able to answer fully
- #7 An overview of the content of the lesson Must be in the form of a question where appropriate Students should be able to answer the question at the end - either fully, partly or in a way that demonstrates they understand what gaps in their knowledge they need to address Verbs such as to understand / to know / to gain confidence / to learn Ask students to give the question a go and point out that, at the end of the lesson, they should be able to answer fully
- #8 An overview of the content of the lesson Must be in the form of a question where appropriate Students should be able to answer the question at the end - either fully, partly or in a way that demonstrates they understand what gaps in their knowledge they need to address Verbs such as to understand / to know / to gain confidence / to learn Ask students to give the question a go and point out that, at the end of the lesson, they should be able to answer fully
- #9 An overview of the content of the lesson Must be in the form of a question where appropriate Students should be able to answer the question at the end - either fully, partly or in a way that demonstrates they understand what gaps in their knowledge they need to address Verbs such as to understand / to know / to gain confidence / to learn Ask students to give the question a go and point out that, at the end of the lesson, they should be able to answer fully
- #10 An overview of the content of the lesson Must be in the form of a question where appropriate Students should be able to answer the question at the end - either fully, partly or in a way that demonstrates they understand what gaps in their knowledge they need to address Verbs such as to understand / to know / to gain confidence / to learn Ask students to give the question a go and point out that, at the end of the lesson, they should be able to answer fully
- #11 An overview of the content of the lesson Must be in the form of a question where appropriate Students should be able to answer the question at the end - either fully, partly or in a way that demonstrates they understand what gaps in their knowledge they need to address Verbs such as to understand / to know / to gain confidence / to learn Ask students to give the question a go and point out that, at the end of the lesson, they should be able to answer fully
- #12 An overview of the content of the lesson Must be in the form of a question where appropriate Students should be able to answer the question at the end - either fully, partly or in a way that demonstrates they understand what gaps in their knowledge they need to address Verbs such as to understand / to know / to gain confidence / to learn Ask students to give the question a go and point out that, at the end of the lesson, they should be able to answer fully
- #13 An overview of the content of the lesson Must be in the form of a question where appropriate Students should be able to answer the question at the end - either fully, partly or in a way that demonstrates they understand what gaps in their knowledge they need to address Verbs such as to understand / to know / to gain confidence / to learn Ask students to give the question a go and point out that, at the end of the lesson, they should be able to answer fully
- #14 An overview of the content of the lesson Must be in the form of a question where appropriate Students should be able to answer the question at the end - either fully, partly or in a way that demonstrates they understand what gaps in their knowledge they need to address Verbs such as to understand / to know / to gain confidence / to learn Ask students to give the question a go and point out that, at the end of the lesson, they should be able to answer fully
- #15 An overview of the content of the lesson Must be in the form of a question where appropriate Students should be able to answer the question at the end - either fully, partly or in a way that demonstrates they understand what gaps in their knowledge they need to address Verbs such as to understand / to know / to gain confidence / to learn Ask students to give the question a go and point out that, at the end of the lesson, they should be able to answer fully
- #16 An overview of the content of the lesson Must be in the form of a question where appropriate Students should be able to answer the question at the end - either fully, partly or in a way that demonstrates they understand what gaps in their knowledge they need to address Verbs such as to understand / to know / to gain confidence / to learn Ask students to give the question a go and point out that, at the end of the lesson, they should be able to answer fully
- #17 An overview of the content of the lesson Must be in the form of a question where appropriate Students should be able to answer the question at the end - either fully, partly or in a way that demonstrates they understand what gaps in their knowledge they need to address Verbs such as to understand / to know / to gain confidence / to learn Ask students to give the question a go and point out that, at the end of the lesson, they should be able to answer fully
- #18 An overview of the content of the lesson Must be in the form of a question where appropriate Students should be able to answer the question at the end - either fully, partly or in a way that demonstrates they understand what gaps in their knowledge they need to address Verbs such as to understand / to know / to gain confidence / to learn Ask students to give the question a go and point out that, at the end of the lesson, they should be able to answer fully
- #19 An overview of the content of the lesson Must be in the form of a question where appropriate Students should be able to answer the question at the end - either fully, partly or in a way that demonstrates they understand what gaps in their knowledge they need to address Verbs such as to understand / to know / to gain confidence / to learn Ask students to give the question a go and point out that, at the end of the lesson, they should be able to answer fully
- #20 An overview of the content of the lesson Must be in the form of a question where appropriate Students should be able to answer the question at the end - either fully, partly or in a way that demonstrates they understand what gaps in their knowledge they need to address Verbs such as to understand / to know / to gain confidence / to learn Ask students to give the question a go and point out that, at the end of the lesson, they should be able to answer fully
- #21 An overview of the content of the lesson Must be in the form of a question where appropriate Students should be able to answer the question at the end - either fully, partly or in a way that demonstrates they understand what gaps in their knowledge they need to address Verbs such as to understand / to know / to gain confidence / to learn Ask students to give the question a go and point out that, at the end of the lesson, they should be able to answer fully
- #22 An overview of the content of the lesson Must be in the form of a question where appropriate Students should be able to answer the question at the end - either fully, partly or in a way that demonstrates they understand what gaps in their knowledge they need to address Verbs such as to understand / to know / to gain confidence / to learn Ask students to give the question a go and point out that, at the end of the lesson, they should be able to answer fully
- #23 An overview of the content of the lesson Must be in the form of a question where appropriate Students should be able to answer the question at the end - either fully, partly or in a way that demonstrates they understand what gaps in their knowledge they need to address Verbs such as to understand / to know / to gain confidence / to learn Ask students to give the question a go and point out that, at the end of the lesson, they should be able to answer fully
- #24 An overview of the content of the lesson Must be in the form of a question where appropriate Students should be able to answer the question at the end - either fully, partly or in a way that demonstrates they understand what gaps in their knowledge they need to address Verbs such as to understand / to know / to gain confidence / to learn Ask students to give the question a go and point out that, at the end of the lesson, they should be able to answer fully
- #25 An overview of the content of the lesson Must be in the form of a question where appropriate Students should be able to answer the question at the end - either fully, partly or in a way that demonstrates they understand what gaps in their knowledge they need to address Verbs such as to understand / to know / to gain confidence / to learn Ask students to give the question a go and point out that, at the end of the lesson, they should be able to answer fully
- #26 An overview of the content of the lesson Must be in the form of a question where appropriate Students should be able to answer the question at the end - either fully, partly or in a way that demonstrates they understand what gaps in their knowledge they need to address Verbs such as to understand / to know / to gain confidence / to learn Ask students to give the question a go and point out that, at the end of the lesson, they should be able to answer fully
- #27 An overview of the content of the lesson Must be in the form of a question where appropriate Students should be able to answer the question at the end - either fully, partly or in a way that demonstrates they understand what gaps in their knowledge they need to address Verbs such as to understand / to know / to gain confidence / to learn Ask students to give the question a go and point out that, at the end of the lesson, they should be able to answer fully
- #28 An overview of the content of the lesson Must be in the form of a question where appropriate Students should be able to answer the question at the end - either fully, partly or in a way that demonstrates they understand what gaps in their knowledge they need to address Verbs such as to understand / to know / to gain confidence / to learn Ask students to give the question a go and point out that, at the end of the lesson, they should be able to answer fully
- #29 An overview of the content of the lesson Must be in the form of a question where appropriate Students should be able to answer the question at the end - either fully, partly or in a way that demonstrates they understand what gaps in their knowledge they need to address Verbs such as to understand / to know / to gain confidence / to learn Ask students to give the question a go and point out that, at the end of the lesson, they should be able to answer fully
- #30 An overview of the content of the lesson Must be in the form of a question where appropriate Students should be able to answer the question at the end - either fully, partly or in a way that demonstrates they understand what gaps in their knowledge they need to address Verbs such as to understand / to know / to gain confidence / to learn Ask students to give the question a go and point out that, at the end of the lesson, they should be able to answer fully
- #31 An overview of the content of the lesson Must be in the form of a question where appropriate Students should be able to answer the question at the end - either fully, partly or in a way that demonstrates they understand what gaps in their knowledge they need to address Verbs such as to understand / to know / to gain confidence / to learn Ask students to give the question a go and point out that, at the end of the lesson, they should be able to answer fully
- #32 An overview of the content of the lesson Must be in the form of a question where appropriate Students should be able to answer the question at the end - either fully, partly or in a way that demonstrates they understand what gaps in their knowledge they need to address Verbs such as to understand / to know / to gain confidence / to learn Ask students to give the question a go and point out that, at the end of the lesson, they should be able to answer fully
- #33 An overview of the content of the lesson Must be in the form of a question where appropriate Students should be able to answer the question at the end - either fully, partly or in a way that demonstrates they understand what gaps in their knowledge they need to address Verbs such as to understand / to know / to gain confidence / to learn Ask students to give the question a go and point out that, at the end of the lesson, they should be able to answer fully
- #34 An overview of the content of the lesson Must be in the form of a question where appropriate Students should be able to answer the question at the end - either fully, partly or in a way that demonstrates they understand what gaps in their knowledge they need to address Verbs such as to understand / to know / to gain confidence / to learn Ask students to give the question a go and point out that, at the end of the lesson, they should be able to answer fully
- #35 An overview of the content of the lesson Must be in the form of a question where appropriate Students should be able to answer the question at the end - either fully, partly or in a way that demonstrates they understand what gaps in their knowledge they need to address Verbs such as to understand / to know / to gain confidence / to learn Ask students to give the question a go and point out that, at the end of the lesson, they should be able to answer fully
- #36 As previously.