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Year 8 Science > Reproduction > Flashcards

Reproduction Flashcards

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Biology 101 flashcards
1
Q

Fertilisation

A

Penetration of the ovum by a sperm.

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2
Q

Testes

A

Produce sperm cells.

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3
Q

Scrotum

A

Pouch of skin containing testes. It hangs outside the body to keep sperm cooler than the body temperature.

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4
Q

Vas Deferens

A

The tube through which sperm cells travel to the testes to the penis.

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5
Q

Prostate gland

A

Secretes some of the liquid that is added to sperm cells to form semen.

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6
Q

Seminal vesicle

A

Also contributes some of the liquid that makes up semen.

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7
Q

Uretha

A

The tube inside the penis through which sperm leaves the males body.

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8
Q

Penis

A

The penis swells during sexual arousal. Semen containing sperm cells is ejaculated (released) from the penis into the vagina.

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9
Q

Conception

A

Embedding of a fertilised egg in the uterus wall.

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10
Q

Contraception

A

Prevention of fertilisation of an egg or prevention of a fertilised egg becoming embedded in the uterus wall.

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11
Q

Contraceptives

A

Devices or substances that prevent the fertilisation of an egg.

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12
Q

Flowers

A

The reproductive part of angiosperms containing petals, stamens and carpels.

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13
Q

Petals

A

The coloured parts of a flower that attracts insects.

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14
Q

Nectaries

A

Parts of the flower, at the base of petals that secret nectar.

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15
Q

Pollen

A

Fine powder containing the pollen grains (the male sex cells of a plant)

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16
Q

Stigma

A

The female part of a flower

17
Q

Pollination

A

Transfer of pollen from the stamen.

18
Q

Cross-Pollination

A

Transfer of pollen from the stamens of one flower to the stigma of a flower of another plant of the same species.

19
Q

Insect-Pollinated flowers

A

Flowers that recieve pollen carried through on the body part of insects through other flowers.

20
Q

Wind-Pollinated flowers

A

Flower that receives pollen carried by the wind from another flower.

21
Q

Anthers

A

The male part of a flower that makes pollen.

22
Q

Pollen grains

A

The male gametes of a flower.

23
Q

Pollen tube

A

Long tube growing from a pollen grain through the style to the ovule.

Year 8 Science (7 decks)

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