Plant reproduction Flashcards
How do the stamens differ of wind vs insect pollinated flowers?
Insect - Enclosed within flower and stiff so they brush against insects
Wind - Exposed outside flower, long filaments to release pollen grain easily.
How do the stigmas differ of wind vs insect pollinated flowers?
Insect - enclosed within flower and sticky to catch pollen grains when insects brush past
Wind - Exposed outside of petals, feathery to catch airborne pollen grains
How do the petals differ of wind vs insect pollinated flowers?
Insect - large and brightly coloured to attract insects
Wind - Small and usually green
How do the nectaries differ of wind vs insect pollinated flowers?
Insect - Present. Nectar attracts insects.
Wind - Absent.
Describe how plants reproduce asexually using runners (natural method)
Plants grow side branches that have small plantlets at the end.
Once they touch the soil, the runners grow roots, the plantlets grow and become independant from the parent plant.
Describe how plants reproduce asexually using cuttings (artificial method)
Gardeners take cutting from healthy parent plants. A section of the parent plant with a new bud is cut off. Placed in water or soil to allow new roots to grow. Eventually grow into into adult plants (genetically identical to parent plant).
How does the pollen differ of wind vs insect pollinated flowers?
Insect - large size, sticky
Wind - large amounts, small size and light