Reproduction Flashcards
Testies
organs that produce sperm
Scrotum
pouch of skin containing testes.
Fertilisation
penetration of the ovum by a sperm
Follicles
Sac contains eggs cell
Fallopian tube
tiny tubes joining the ovaries to the uterus
Puberty
life stage when the sex glands become active and bodily changes occur to enable reproduction
Hormones
Hormones have specific effects in the body.
Menstrual cycle
beginning of one period to the beginning of the next period
Menstruation
Monthly bleeding
Asexual reproduction
reproduction that does not involve sex half-cells
Gametes
reproductive cells
Sperm
male reproductive cell.
Ova
female gametes. Multiple
Zygote
cell formed by the fusion of two gametes
External fertilisation
reproduction where the eggs are released by the female into water and fertilised by sperm released nearby
Internal fertilisation
reproduction where the egg remains in the female and is fertilised by sperm inserted into the female
Copulation
the act of inserting sperm into the female
Meiosis
cell division process that results in new cells with half the number of chromosomes of the original cell
Epigenetics
new branch of science that involves studying the effect of our experiences on the expression of our genetic information
Ejactculation
Released
sperm
Semen
combination of fluid and sperm
Flower
reproductive part of angiosperms containing petals, stamens and carpels
Petal
coloured parts of a flower that attract insects
Nectaries
parts of a flower, at the base of the petals, that secrete nectar
Pollen
fine powder containing the pollen grains
Stigma
at the top of the carpel, that catches the pollen during pollination
Pollination
transfer of pollen from the stamen (the male part) of a flower to the stigma
Cross pollination
Transfer of pollen from stamens of one flower to the stigma of a flower of another plant of the same species
Insect pollinated flower
flowers that receive pollen carried on the body parts of insects from other flowers
Wind pollinated flower
flower that receives pollen carried by the wind from another flower
Anther
male part of a flower that makes pollen
Pollen grain
male gametes of a flower
Pollen tube
long tube growing from a pollen grain through the style to the ovule
Ovule
receptacle within an ovary that contains egg cells
Ovary
plants, the hollow, lower end of the carpel containing the ovules
Fertilisation
penetration of the ovum by a sperm
Zygote
Cell formed by the fusion of two gametes; fertilised ovum before it starts to divide into more cells
Endosperm
food supply for the embryo plant in a seed
Seed
product of a fertilised ovule
Seed coat
the protective layer around a seed
Fruit
the protective layer around a seed
Disperse
scatter the seeds from plants
Plumule
small bud at the tip of the embryo plant in a seed
Radicle
beginnings of a root making up part of a plant embryo inside a seed
Cotyledons
special leaves of the embryo plant inside a seed that provide food for the developing seedling
Germination
first sign of growth from the seed of a plant
Seedling
young plant produced from the embryo in the seed after germination
