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B1 GCSE CORE SCIENCE > Hormones > Flashcards

Hormones Flashcards

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1
Q

How are hormones carried?

A

They are carried in the blood plasma

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2
Q

What kind of effect to hormones have?

A

Long lasting effects

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3
Q

Is a hormones message slow or fast?

A

Slow

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4
Q

Do hormones act for a long or short time?

A

Long time

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5
Q

Do hormones act in a precise are or a general area?

A

A general area

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6
Q

Do hormones carry a chemical message or electrical message?

A

Chemical

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7
Q

What are hormones?

A

Chemicals messengers that travel in the blood to activate target cells

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8
Q

What is the sex hormone released in men?

A

Testosterone

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9
Q

What is the sex hormone released in women?

A

Oestrogen

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10
Q

What is the role of FSH (follicle stimulating hormone)

A

It causes egg development in the ovaries and stimulates the ovaries to produce oestrogen.

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11
Q

Where is FSH made?

A

In the pituitary gland

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12
Q

What is the role of LH?

A

It stimulates the release of an egg on day 14

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13
Q

Where is LH produced?

A

In the pituitary gland

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14
Q

What is the role of oestrogen?

A

It causes the uterus lining to thicken and stimulates the production of LH

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15
Q

Where is oestrogen produced?

A

In the ovaries

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16
Q

What is the role of progesterone?

A

Maintains the lining of the uterus if the level of progesterone falls then the lining breaks.

17
Q

Where is progesterone produced?

A

In the ovaries

18
Q

What four conditions need to be controlled in the human body?

A

Water
Ions
Temperature
Blood sugar

19
Q

What is the role of FSH? (2 MARKS)

A

Causes egg maturity in ovaries

Stimulates the ovaries to produce oestrogen

20
Q

Why is FSH and LH given as a fertility drug?

A

So it can stimulate the eggs to mature

21
Q

How does IVF happen? (4 marks)

A
  • Eggs are collected from the mother
  • They get fertilised by the dads sperm
  • Fertilised eggs mature into embryos
  • When they become a tiny ball of cells they are inserted into the woman’s uterus/womb
22
Q

What are the three things plants are sensitive to?

A

Light
Moisture
Gravity

23
Q

What grows towards the light and away from gravity?

A

Shoots

24
Q

What grow towards the moisture and in the direction of gravity?

A

Roots

25
Q

What do we call plants responding to light?

A

Phototropism

26
Q

What do we call plants responding to gravity?

A

Gravitropism

27
Q

What are plant growth hormones used for in agriculture?

A

Weed killer

B1 GCSE CORE SCIENCE (11 decks)

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