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BIOLOGY SAQS > part 5 > Flashcards

part 5 Flashcards

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1
Q

What are hormones?

A

Chemical messengers sent in the blood

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2
Q

What is the role of the adrenaline hormone?

A

Fight or flight response.
Increases heart rate and breathing rate.
Increases glucose and oxygen for more respiration.

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3
Q

What is the role of thyroxine?

A

Regulates metabolism, the speed at which chemical reactions happen in the body.

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4
Q

Name the hormones that regulate the menstrual cycle in women.

A

FSH, Oestrogen, LH and Progesterone.

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5
Q

What is the role of the hormone FSH?

A

Causes a follicle to mature and stimulates the production of oestrogen.

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6
Q

What is the role of the hormone Oestrogen?

A

Causes the lining of the uterus to thicken and grow.

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7
Q

What is the role of LH hormone?

A

Stimulates the rupture of the follicle and release of the egg, known as ovulation.
Stimulates the remains of the follicle to develop into a corpus luteum which secretes the hormone progesterone.

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BIOLOGY SAQS (6 decks)

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