What you’ll learn12 learning objectivesChoose one objective for a focused lesson, or study the complete topic.16.3.1Draw the following parts• Identify in diagrams and images and draw the following parts of an insect-pollinated flower: sepals, petals, stamens, filaments, anthers, carpels, style, stigma, ovary and ovulesSyllabus objective16.3.2Functions of the structures listed• State the functions of the structures listed in 16.3.1Syllabus objective16.3.3Describe the anthers and stigmas• Identify in diagrams and images and describe the anthers and stigmas of a wind-pollinated flowerSyllabus objective16.3.4Pollen grains of insect-pollinated• Distinguish between the pollen grains of insect-pollinated and wind-pollinated flowersSyllabus objective16.3.5Pollination as the transfer of pollen• Describe pollination as the transfer of pollen grains from an anther to a stigmaSyllabus objective16.3.9Self-pollination as the transfer• Describe self-pollination as the transfer of pollen grains from the anther of a flower to the stigma of the same flower or a different flower on the same plantSyllabus objective16.3.10Cross-pollination as the transfer• Describe cross-pollination as the transfer of pollen grains from the anther of a flower to the stigma of a flower on a different plant of the same speciesSyllabus objective16.3.11Potential effects of self-pollination• Discuss the potential effects of self-pollination and cross-pollination on a population, in terms of variation, capacity to respond to changes in the environment and reliance on pollinatorsSyllabus objective16.3.6Fertilisation occurs when a pollen• State that fertilisation occurs when a pollen nucleus fuses with a nucleus in an ovuleSyllabus objective16.3.7Structural adaptations• Describe the structural adaptations of insect-pollinated and wind-pollinated flowersSyllabus objective16.3.8Environmental conditions that affect• Investigate and describe the environmental conditions that affect germination of seeds, limited to the requirement for: water, oxygen and a suitable temperatureSyllabus objective16.3.12Growth of the pollen tube and its• Describe the growth of the pollen tube and its entry into the ovule followed by fertilisation (details of production of endosperm and development are not required)Syllabus objective