reproduction Flashcards
name the two male parts of the plants reproduction system
anther and filement
name the 4 female parts of the plants reproduction system
stigma, style, ovule and the ovary
which flower structure produces the male gamete
anther
which flower structure produces the female gamete
ovary
what is a gamete
a sex cell
what does the petal do in plants reproduction
it is brightly coloured to attract insects
what does the sepals do in plants
they protect the developing bud
what does the nectary do in plants
produces nectar
what does the anther do in plants reproduction
produces pollen [the male gamete]
what does the filament do in plants reproduction
holds up the anther
what does the stigma do in plants reproduction
it is where the pollen lands
what does the style do in plants reproduction
connects the stigma to the ovary
what does the ovary do in plants reproduction
produces the egg [the female gamete]
which form of pollination usually takes place in brightly coloured plants
insects pollination
which form of pollination usually takes place in grain plants
wind pollination
name characteristics of wind-pollination
small
dull
what is cross pollination
it is pollination that occurs when the male gamete is transferred to the female gamete usually of another plant form the same species
what does haploid mean
when one cell has only one set f chromosomes
what is self pollination
it is the process when pollen from the anther of a flower is transferred to the stigma of the same flower.
what is a zygote
the fertislied egg
state three possible seed dispersal methods
seeds getting eaten
seeds stick to animals fur
seeds get spread by wind
what is the name of the female sex cell where is it produced
ovule/egg and produced in the ovary
what is the name of the male sex cell where is it produced
pollen and produced in the anther
what’s an alternative name for a sex cell
gamete
describe the process of fertilisation in plants
Fertilization in plants happens the pollen combines with an egg cell inside the ovule, leading to the formation of a seed that can grow into a new plant.
what part of the flower develops into the fruit
ovary
what is the important feature of sexual reproduction
1.the production of gametes
what is the term for reproduction with out SEX (like in plants)
asexual reproduction
name 4 reasons plants are grown
food
fuel
raw materials
medicines
name the male gamete in animals
sperm
name the female gamete in animals
egg
state the struture that a sperm cell posses which allows It to swim to the egg
tail
are gametes haploid or diploid
haploid
where is the female gamete produced in animals
ovary
where is the male gamete produced in animals
testes
number of eggs released at the one time
1
number of sperm released at the one time
millions
how many chromosomes do both the egg and sperm in humans have
23
what structure provides the sperm cell with energy to reach the egg
mitrochondria
sperm+egg=
zygote
describe the fertilisation process
the fusion of the male and female sex cell at the nucleus to cleat a zygote
give an example of a haploid cell
sperm, egg, pollem and ovule
