Reproduction Flashcards
(23 cards)
Fertilisation
Penetration of the ovum by a sperm.
Testes
Produce sperm cells.
Scrotum
Pouch of skin containing testes. It hangs outside the body to keep sperm cooler than the body temperature.
Vas Deferens
The tube through which sperm cells travel to the testes to the penis.
Prostate gland
Secretes some of the liquid that is added to sperm cells to form semen.
Seminal vesicle
Also contributes some of the liquid that makes up semen.
Uretha
The tube inside the penis through which sperm leaves the males body.
Penis
The penis swells during sexual arousal. Semen containing sperm cells is ejaculated (released) from the penis into the vagina.
Conception
Embedding of a fertilised egg in the uterus wall.
Contraception
Prevention of fertilisation of an egg or prevention of a fertilised egg becoming embedded in the uterus wall.
Contraceptives
Devices or substances that prevent the fertilisation of an egg.
Flowers
The reproductive part of angiosperms containing petals, stamens and carpels.
Petals
The coloured parts of a flower that attracts insects.
Nectaries
Parts of the flower, at the base of petals that secret nectar.
Pollen
Fine powder containing the pollen grains (the male sex cells of a plant)
Stigma
The female part of a flower
Pollination
Transfer of pollen from the stamen.
Cross-Pollination
Transfer of pollen from the stamens of one flower to the stigma of a flower of another plant of the same species.
Insect-Pollinated flowers
Flowers that recieve pollen carried through on the body part of insects through other flowers.
Wind-Pollinated flowers
Flower that receives pollen carried by the wind from another flower.
Anthers
The male part of a flower that makes pollen.
Pollen grains
The male gametes of a flower.
Pollen tube
Long tube growing from a pollen grain through the style to the ovule.
