Fig. 5.1 is a diagram of an insect-pollinated flower. Fig. 5.1 State the letters of the structures in Fig. 5.1 that make up the stamen. and

16.2.1 Define sexual reproduction as a process involving the fusion of the nuclei of two gametes (sex cells) to form a zygote and the production of offspring that are genetically different from each other

16.2.2 Define fertilisation as the fusion of gamete nuclei

16.2.3 Discuss the advantages and disadvantages of asexual reproduction: – to a population of a species in the wild – to crop production

16.2.4 State that the nuclei of gametes are haploid and that the nucleus of a zygote is diploid

16.2.5 Discuss the advantages and disadvantages of sexual reproduction: – to a population of a species in the wild – to crop production

16.3.1 Identify and draw, using a hand lens if necessary, the sepals, petals, stamens, filaments and anthers, carpels, style, stigma, ovary and ovules, of an insect-pollinated flower

16.3.10 Investigate and state the environmental conditions that affect germination of seeds, limited to the requirement for water, oxygen and a suitable temperature

16.3.11 Define self-pollination as the transfer of pollen grains from the anther of a flower to the stigma of the same flower or different flower on the same plant

16.3.12 Define cross-pollination as transfer of pollen grains from the anther of a flower to the stigma of a flower on a different plant of the same species

16.3.13 Discuss the implications to a species of self-pollination and cross-pollination in terms of variation, capacity to respond to changes in the environment and reliance on pollinators

16.3.14 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)

16.3.2 State the functions of the sepals, petals, anthers, stigmas and ovaries

16.3.3 Use a hand lens to identify and describe the anthers and stigmas of a wind-pollinated flower

16.3.4 Distinguish between the pollen grains of insect-pollinated and wind-pollinated flowers

16.3.5 Define pollination as the transfer of pollen grains from the anther to the stigma

16.3.6  Define pollination as the transfer of pollen grains from the anther to the stigma

16.3.7  Define pollination as the transfer of pollen grains from the anther to the stigma

16.3.8 State that fertilisation occurs when a pollen nucleus fuses with a nucleus in an ovule

16.3.9 Describe the structural adaptations of insect-pollinated and wind-pollinated flowers