Questions and Answers

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

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

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

Describe pollination as the transfer of pollen grains from an anther to a stigma

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

Identify in diagrams and images and describe the anthers and stigmas of a wind-pollinated flower

State the functions of the structures – sepals, petals, stamens, filaments, anthers, carpels, style, stigma, ovary and ovules

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

Discuss the advantages and disadvantages of sexual reproduction: (a) to a population of a species in the wild (b) to crop production

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