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Biology > B11: Hormonal Coordination > Flashcards

B11: Hormonal Coordination Flashcards

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1
Q

Main male hormone

A

Testosterone- Produced by testes which stimulates sperm production

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2
Q

FSH

A

Matures the egg in the ovary and starts oestrogen production

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3
Q

Oestrogen

A

Stops FSH and stimulates LH, maintain uterus lining

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4
Q

LH

A

Ovulation, stops Oestrogen and stimulates Progesterone

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5
Q

Progesterone

A

Increases lining of the womb, stops LH

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6
Q

IVF stands for……..

A

In Vitro Fertilisation Treatment

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7
Q

Examples of contraception

A

Oral contraceptives, Implants, Surgical Methods

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8
Q

Negative Feedback is

A

Systems that work to maintain a steady state

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9
Q

Adrenaline is produced by

A

The adrenal glands in times of fear or stress

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10
Q

Adrenaline increases……

A

The heart rate and boosts the delivery of oxygen and glucose to the brain and muscles.

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11
Q

Thyroxine comes from and stimulates

A

Thyroxine gland and stimulates the basal metabolic

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12
Q

Why is Thyroxine important and what are its levels controlled by

A

Important role in growth and development and controlled by negative feedback

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13
Q

Phototropism is

A

A hormone in plants, which responds to light

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14
Q

Gravitropism is

A

A plant hormone which responds to gravity

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15
Q

Gibberellins are important in……….

A

Initiating seed germination

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16
Q

Ethene controls…….

A

Cell division and ripening of fruits

17
Q

Plant responses to light and gravity are brought about by the……

A

Auxin hormone

18
Q

Auxin are used for

A
  • Weed killers
  • As rooting powders
  • Promoting growth in tissue culture
19
Q

Ethene is used for

A
  • Control ripening of fruit during storage and transport
20
Q

Gibberellins can be used to:

A
  • End seed dormancy
  • Promote flowering
  • Increase fruit size
  • Increase yield of sugar cane
21
Q

Thyroid

A

Controls metabolic rate of the body

22
Q

Pancreas

A

Controls the levels of glucose in the blood

23
Q

Adrenal

A

Prepares the body for stressful situation

24
Q

Ovaries

A

Controls the development of the female secondary sexual characteristics and is involved in the menstrual cycle

25
Q

Testes

A

Controls the development of the male secondary sexual characteristics and is involved in the production of sperm

26
Q

Pituitary

A

Controls growth in children

Stimulates the thyroid gland to make thyroxine to control the rate of metabolism

Biology (10 decks)

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