16.3 Sexual reproduction in plants
- Syllabus
- 0610–2026–2027
- Topic
- 16.3
- Level
- —
16.3.1—Draw 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 ovules
16.3.2—Functions of the structures listed
- State the functions of the structures listed in 16.3.1
16.3.3—Describe the anthers and stigmas
- Identify in diagrams and images and describe the anthers and stigmas of a wind-pollinated flower
16.3.4—Pollen grains of insect-pollinated
- Distinguish between the pollen grains of insect-pollinated and wind-pollinated flowers
16.3.5—Pollination as the transfer of pollen
- Describe pollination as the transfer of pollen grains from an anther to a stigma
16.3.9—Self-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 plant
16.3.10—Cross-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 species
16.3.11—Potential 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 pollinators
16.3.6—Fertilisation occurs when a pollen
- State that fertilisation occurs when a pollen nucleus fuses with a nucleus in an ovule
16.3.7—Structural adaptations
- Describe the structural adaptations of insect-pollinated and wind-pollinated flowers
16.3.8—Environmental conditions that affect
- Investigate and describe the environmental conditions that affect germination of seeds, limited to the requirement for: water, oxygen and a suitable temperature
16.3.12—Growth 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)
Objective notes
12 learning objectivesConceptIGCSE Biology