biology pollination Flashcards
What are pollinators?
A pollinator is an animal that moves pollen from the male anther of a flower to the female stigma of a flower. This helps to bring about fertilization of the ovules in the flower by the male gametes from the pollen grains
what animals can serve as pollinators?
Birds, bats, butterflies, moths, flies, beetles, wasps, small mammals, and most importantly, bees are pollinators.
What attracts pollinators to a plant?
Good smells and bright colours
how many types of pollination are there?
self-pollination and cross-pollination.
What are the steps in pollination?
Step one: After pollen has landed on the stigma, it grows a pollen tube down through the style to the ovary.
Step two: The nucleus of the pollen grain travels down the pollen tube and fertilises the nucleus in the ovule.
Step three: The fertilised ovule develops into a seed.