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science SEC 2 > reproduction > Flashcards

reproduction Flashcards

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Biology 101 flashcards
1
Q

what is reproduction?

A

producing new children and prevent extinction

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2
Q

what is the female sex cell

A

ova

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3
Q

what is the male sex cell

A

sperm

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4
Q

what is chromosomes

A

carries DNA which controls our growth and appearance

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5
Q

what is the male sex hormone

A

testosterone

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6
Q

what is the female sex hormone

A

oestrogen

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7
Q

when does puberty start for girls

A

10 to 12

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8
Q

when does puberty start for boys

A

12 to 14

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9
Q

what happens during puberty

A

reproductive organs mature and produce sex hormones

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10
Q

whats a zygote

A

fertilised egg

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11
Q

what is fertilisation

A

fusion of both sperm and egg cell’s nucleus to form a zygote

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12
Q

where does fertilisation take place

A

oviduct

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13
Q

where is sperm released and into where

A

sperm is released from the penis and into the vagina

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14
Q

where does implantation occur

A

uterus

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15
Q

what is ovulation

A

release of an ovum

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16
Q

What affects the development of the fetus?

A

the food she consumes and substance abuse

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17
Q

what are examples of substance abuse

A

smoking , drinking and drugs

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18
Q

birth control works by doing what

A

preventing ovulation, fertilisation or implantation of an embryo

19
Q

what is rhythm method

A

couples dont have sex on the fertile period

20
Q

what is Diaphragm

A

dome shaped plastic covering the cervix

21
Q

whats a IUD(intra-uterine device)

A

inserted into the uterus to prevent sperm from fertilising an egg

22
Q

what is a permanent method of birth control for the males

A

vasectomy

23
Q

what is a permanent method of birth control for the females

A

tubal ligation

24
Q

how does vasectomy work

A

sperm ducts are cut and tied

25
Q

how does tubal ligation work

A

cutting and tying both oviducts

26
Q

why do people do abortion

A

baby might be deformed, unplanned preg, poverty and life of mother might be in danger

27
Q

how sti spreads?

A

sexual intercourse, blood tranfusions, contaminated needles

28
Q

what is syphilis and gonorrhoea

A

caused by species of bacteria

29
Q

effects of syphilis?

A

early:flu like rashes
late: deformed joints, teeth

30
Q

effects of gonorrhoea

A

burning sensation when peeing n discharge of pus

31
Q

what is hiv

A

is a viral type of infection

32
Q

what does testis do

A

produce sex hormones and sperm

33
Q

what do sex glands do

A

produce seminal fluid

34
Q

what is seminal fluid

A

mixture sperm and fluid (semen)

35
Q

what is the sperm duct

A

a tube that connects testes to urethra

36
Q

what is urethra

A

tube that allows semen to be pass through and pee to go out

37
Q

what does ovary do

A

produce eggs(ova) and sex hormones

38
Q

what is oviduct

A

tube which egg travel to and where fertilisation occurs

39
Q

what is uterus

A

embryo develops there and uterine lining which implantation occurs

40
Q

what is cervix

A

narrow opening of the uterus, connects uterus to vagina

41
Q

what happens during day 1-5

A

mensuration

42
Q

what happens during 6-10

A

the uterine lining thickens again

43
Q

what happens during day 11-18

A

ovulation occurs (normally day 14) fertile period as well

44
Q

what happens on day 19-28

A

thickens wall again

science SEC 2 (7 decks)

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