4.2 Plant reproduction Flashcards
what is an angiosperm
plants that produce flowers
what is the reproductive organ of an angiosperm
flower
label an angiosperm
what is the stamen
male reproductive organs
what does the stamen contain
anther and filament
what is the carpel
female reproductive organ
what does the carpel consist of
stigma
style
ovary
function of sepal
protects the flower when in bud
function of receptacle
the thickened part of the cell, from which the flower grows
function of corolla
a ring of colourful petals inside the sepal
function of the nectary
found at the base of the flower, releases scented nectar to attract pollinators such as insects
function of petals
in insect pollinated plants they are colourful and have scent to attract insects
function of stamen
male parts
made of an anther and attached to a long filament
function of anther
pollen grains are produced inside 4 pollen sacs by meiosis
function of the filament
contains vascular tissue, which transports mineral ions and water to the developing pollen grains
function of the carpel
female parts
made of the stigma, style and ovary
function of ovules
made inside the ovary
contain an egg cell formed by meiosis
what is a calyx
a collection of sepals
are most adult flowers haploid or diploid
diploid
where does meiosis occur
within their reproductive tissues to make haploid spores
what are male spores also known as
pollen grains
what happens to pollen grains during pollination
each pollen grain produces 2 male gametes
what are female spores called
ovules
what do the ovule contain
the female gamete called the egg cell nucleus