Endocrine system and Hormonal coordination Flashcards

1
Q

What are the human body’s two communication systems?

A

Endocrine system
Nervous system

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2
Q

What makes up the endocrine system?

A

Glands

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3
Q

Name 6 glands that secrete hormones

A

Pituitary gland
Pancreas
Thyroid
Adrenal Gland
Ovary
Testes

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4
Q

What does the pituitary gland do?

A

‘MASTER GLAND’
~ Secrete hormones into the blood to either have an effect on the body or to prompt other glands to produce hormones

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5
Q

What does the pancreas do?

A

Secretes insulin which controls blood sugar levels

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6
Q

What does the thyroid do?

A

Secretes thyroxine
Controls metabolic rate, heart rate and body temperature

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7
Q

What is thyroxine made up of?

A

Made using iodine

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8
Q

What is the purpose of the hormone thyroxine?

A

Controls how much energy your body uses, oxygen use, brain growth

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9
Q

What does the adrenal gland do?

A

Secretes adrenaline
Involved in ‘fight or flight’ situations

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10
Q

What does the ovary secrete?

A

Oestrogen

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11
Q

What is oestrogen involved in?

A

Menstruation
Puberty

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12
Q

Where is testosterone secreted?

A

Testes

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13
Q

What is testosterone involved in?

A

Puberty

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14
Q

What does adrenaline do?

A

-increases heart rate
-boost delivery of oxygen
and glucose to brain and
muscles to prepare for
‘fight or flight’

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15
Q

How does IVF Treatment work?

A

mother is given FSH and LH to stimulate maturation of several eggs

eggs collected from mother and are fertilised in a lab

eggs develop in to embryos

one or two eggs are inserted in to the mothers uterus when embryos are still a tiny ball of cells

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16
Q

What is the purpose of hormones in plants?

A

To coordinate and control their growth and their responses to light and gravity

17
Q

What is phototropism?

A

Orientation and growth of plants in response to light

18
Q

What is geotropism?

A

Growth of plants in response to gravity

19
Q

What are plant hormones used in?

A

Used in agriculture and horticulture to control the growth of desirable plants and crops

20
Q

What is the function of AUXIN?

A

Plant growth regulator

  • Unequal distributions of auxin cause unequal growth rates in plant roots and shoots
21
Q

What is the agricultural use of AUXIN?

A

-Weedkiller
-Rooting powder
-Promoting growth in
tissue cultures

22
Q

What is the function of ethene?
(plants)

A

Acts as a hormone to control cell division

23
Q

What is the agricultural use of ethene?

A

Control ripening of fruit during storage and transport
(e.g bananas)

24
Q

What is the function of gibberellins?

A

Regulates developmental processes

e.g initiating seed germination

25
What is the agricultural use of gibberellins?
End seed dormancy Promote flowering Increase fruit size
26
What is metabolism?
All the chemical reactions in the cells of an organism, including respiration