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Biology GCSE > Hormones > Flashcards

Hormones Flashcards

(60 cards)

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1
Q

Adrenaline

A

makes your heart beat faster and helps you breathe more efficiently

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2
Q

Auxin

A

hormone found in the shoots of plants

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3
Q

Basic Metabolic Rate

A

the speed at which oxygen and food products react to release energy into the body

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4
Q

Benedict’s Test

A

test for sugar, turns orange

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5
Q

Biuret’s Test

A

test for protein

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6
Q

Chemotropism

A

the tropism that causes roots to grow towards soil minerals

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7
Q

Contraceptive Methods

A

ways to stop women getting pregnant

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8
Q

Oral Contraceptive

A

release FSH, therefore affecting the ovaries to make sure no eggs mature, preventing pregnancy, and prevent the uterus lining developing

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9
Q

Implant or Skin Patch

A

similar to the contraceptive, these release progesterone to prevent sperm reaching the egg due to thickened mucus

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10
Q

Barrier Methods

A

create a barrier, preventing the sperm from reaching the egg

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11
Q

Spermicide

A

kills sperm so it cannot reach the egg

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12
Q

Intrauterine Methods

A

small structures inserted not the uterus by a doctor which release either copper, which prevents early embryos implanting in the uterus, or progesterone, which thickens the mucus of the cervix, preventing pregnancy

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13
Q

Surgical Methods

A

involve cutting or tying either the man’s sperm ducts or the women’s oviducts

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14
Q

Vasectomy

A

where sperm ducts are cut or tied, stopping sperm from reaching the eggs

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15
Q

Hysterectomy

A

where oviducts are cut or tied, stopping eggs from reaching the sperm

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16
Q

Abstinence

A

not having sex prevents getting pregnant

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17
Q

Deamination

A

a process occurring in the liver that removes the amino group from an amino acid to produce ammonia

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18
Q

Endocrine System

A

a system made up of glands that secrete hormones directly into the bloodstream to coordinate the body

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19
Q

Ethene

A

a plant hormone that causes fruit to ripen

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20
Q

Fertility Treatments

A

treatments that help couples conceive

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21
Q

Hormonal Treatments

A

involves changing people’s hormones to increase their chances of conceiving

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22
Q

Artificial Insemination

A

involves putting sperm in in an artificial way

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23
Q

IVF

A

In-Vitro Fertilisation

where the egg and sperm are put together outside the body and then placed inside the womb

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24
Q

FSH

A

Follicle-Stimulating Hormone

hormone that causes an egg to mature and stimulate the ovaries to produce oestrogen

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25
Fructose
a type of simple sugar
26
Geotropism
the tropism that causes shoots to grow away from gravity and roots to grow towards it
27
Gibberellins
initiates seed germination, used by florists to make sure flowers are available all year round
28
Glands
points in the body where hormones are secreted directly into the bloodsteam
29
Adrenal
prepares the body for stressful situations by eliciting the 'fight or flight' response, located on each kidney
30
Ovaries
controls the development of the female secondary sexual characteristics and is involved in the menstrual cycle
31
Pancreas
controls the level of glucose in the blood
32
Pituitary
controls growth in children, stimulates the thyroid gland to make thyroxine to control the rate of metabolism, in women, it stimulates the ovaries to produce and release eggs and to produce oestrogen, and in men, it stimulates the testes to produce sperm and testosterone, located in the brain
33
Testes
controls the development of the male secondary sexual characteristics and is involved in the production of sperm
34
Thyroid
controls the metabolic rate of the body, located in the throat
35
Glucagon
hormone involved in the control of blood sugar levels, breaks down glycogen into glucose
36
Hormone
chemical messages that coordinate systems and travel in the bloodstream to cause a change in how the body works
37
Hydrotropism
the tropism that causes roots to grow towards water
38
Hyperthyroidism
where the thyroid gland produces too much thyroxine
39
Hypothyroidism
where the thyroid gland doesn't produce enough thyroxine
40
Insulin
allows cells to absorb glucose in the blood, controls storage of glycogen in the liver
41
Iodine
tests for starch, turns blue-black
42
LH
Luteinising Hormone hormone that causes mature eggs to be released from the ovary
43
Negative Feedback
where levels of one hormone and controlled by another
44
Oestrogen
hormone that stops the production of FSH, causes the pituitary gland to secrete LH
45
Optimum Temperature
temperature where the reaction works as fast as possible
46
Phototropism
the tropism that causes shoots to grow towards the light and roots to grow away from it
47
Progesterone
maintains the lining of the uterus wall
48
Rooting Powder
promotes root growth, eg in cuttings
49
Sudan III
tests for lipids, turns red
50
Target Organ
the specific organ on which a drug, hormone or other substance acts
51
Testosterone
the male hormone
52
Thigotropism
the tropism that causes shoots to grow towards touch, eg ivy
53
TSH
Thyroid Stimulating Hormone the hormone that regulates the amount of thyroxine hormone in the body
54
Thyroxine
the hormone that the thyroid gland secretes into the bloodstream, controls the basic metabolic rate and plays an important role in growth and development
55
Tropism
directional growth response
56
Positive Tropism
causes plants to grow towards stimuli
57
Negative Tropism
causes plants to grow away from stimuli
58
Weedkillers
contains a hormone forcing the plants to grow too quickly so that they cannot photosynthesise fast enough and die of stress, used in biological warfare
59
Glucagon
hormone involved in the control of blood sugar levels, breaks down glycogen into glucose
60
Xerostomia
when your mouth goes dry, often due to stress or anxiety as, when you are stressed, your body suppresses the digestion system so that most of the body’s resources are available for fight or flight, which includes suppressing salivation

Biology GCSE (12 decks)

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