UNIT 3 CHAPTER 40-SEXUAL REPRODUCTION IN FLOWERING PLANTS Flashcards
what is sexual reproduction ?
it involves the union of two sex cells or gametes
what is asexual reproduction ?
it is reproduction that only involves one parent
what are gametes ?
they are haploid cells capable of fusion
what are stamens ?
they are the male parts of the flower
what does the anther do ?
it produces pollen grains on its inside as a result of meiosis
what are carpels ?
they are the female parts of the flower
what happens at the stigma ?
pollen lands on the stigma
what is pollination ?
it is the transfer of the pollen from an anther to a stigma of a flower from the same species
what is self-pollination ?
it involves the transfer of pollen from an anther to a stigma on the same plant
what is cross-pollination ?
it involves the transfer of pollen from an anther to a stigma on a different plant of the same species
what are some methods of pollination ?
- wind
- animal
what is fertilisation ?
it is the union of the male and female gametes to form a diploid zygote
what is dispersal ?
it is the transfer of a seed or fruit away from the parent plant
what are some types of dispersal ?
- wind dispersal,
- water dispersal,
- animal dispersal.
what is dormancy ?
it is the resting period when seeds undergo no growth and have reduced cell activity or metabolism
