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Biology🖍 > Reproduction > Flashcards

Reproduction Flashcards

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1
Q

What are the names of the male and female gametes?

A

The mail gametes are the sperm produced in the testies/testicles

Female gametes: ovum sing/ova pl.
female gametes are produced in the ovaries

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2
Q

What are secondary sexual characteristics?

A

Characteristics that develop at puberty.

Some prepare the body for reproduction whilst others make it clear that the body is now mature enough for reproduction.

The development of these characteristics is controlled by the production of sex hormones.

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3
Q

Example of secondary sexual characteristics for males and females

A

Male: sperm production, deepening of voice, hair growth, penis growth (testes and scrotum), height increase.

Female: inscrease in height, breast development, vagina oviducts and uterus development, menstrual cycle begins, hips widen, pubic hair growth.

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4
Q

What is puberty?

A

Puberty is the time in which your secondary sexual characteristics develop. Physical maturity enabling males and females to reach sexual maturity (reproduction)

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5
Q

What is the point in the menstrual cycle?

A

Allows the egg to be matured
Egg can be released (ovulation)
Lining of the uterus thickens in preparation for a fertilised egg.

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6
Q

What hormones is the menstrual cycle controlled by

A

Hormones from the ovaries and pituitary gland from the brain

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7
Q

Where does ferilisation occur?

A

The Fallopian tube

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8
Q

Fertilisation is the jointing together

A

Of a sperm and an egg

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9
Q

The sperm swim..:

A

Through the cervix, up the uterus and into the egg tube to find the egg

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10
Q

Because lots of sperm won’t reach the egg…

A

Millions of sperm are released into the vaguna at once

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11
Q

Only one sperm

A

Is able to enter the vagiba because the egg makes a skin around itself to stop the other sperm from entering it

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12
Q

The egg can live for about

A

A day

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13
Q

A speed can live for up to

A

3 days

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14
Q

The only time an egg can be fertilised

A

Is only about 3 days in a month

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15
Q

Menstrual cycle…

A

1: uterus lining breakers down (mesntration) pituitary gland releases FSH

5-14: FSH causes egg follice inside the ovary to grow and mature and oestrogen is released which switches off FSH and releases LH. It also causes the uterus lining to thicken.

14: LH levers peak and the egg is released from the follice. The LH stops oestrogen release.

14-21: progesterone is released by the empty follice. This maintains the uterus lining and stops LH

21-28: if the egg is not fertilised levels or progesterone start to fall. The uterus lining will break down again.

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16
Q

What is produced when an egg and sperm cell fuse?

A

A zygote

17
Q

How does this become an embryo?

A

Cell division (mitosis)

18
Q

An egg cell is large so that it can store a lot of….

A

Carbohydrates for energy for the developing embryo.

19
Q

Sperm route

A

Vagina-cervix-uterus-oviduct

20
Q

Male and female gametes are…

A

Haploid cells

21
Q

Infertility can happen when

A

Men have problems ejaculating, genetic probs and issues with tubes carrying the sperm.

Women can have damage to the Fallopian tubes, uterus, promlblems with ovulation, damage to the cervix and age.

22
Q

Couples struggling to conceive can….

A

Have surgery- repair fallopiab tube

Have assisted conception

Seek medical treatment which helps lack of regular ovulation

23
Q

Bby stages

A 
Gametes 
Zygote 
Embryo
Fetus 
Baby
24
Q

The egg is released in the…

A

Ovaries

25
Q

The egg is fertilised in the

A

Fallipian tube

26
Q

The embryo comes surrounded by amniotic fluid in the

A

Uterus

27
Q

Fertilised egg

A

Zygote

28
Q

Cell division used to produce the embryo

A

Mitosis

29
Q

How is the developing embryo supplied with nutrients

A

The placenta and ambilifal cord

Biology🖍 (11 decks)

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