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GCSE Biology Paper 2
The Endocrine System
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Cards (31)
How long do the effects of the nervous system tend to last?
Very
short-lived
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How is the body controlled in the endocrine system?
By chemicals called
hormones
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What do scientists call the system controlled by hormones?
The
endocrine
system
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What does the endocrine system consist of?
A number of
glands
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What do the glands in the endocrine system secrete?
Hormones
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Where do endocrine glands secrete hormones?
Directly into the
bloodstream
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How are hormones transported around the body?
The
blood
carries them
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Where do hormones act to produce an effect?
Specific
target organs
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What is one key difference between the nervous and endocrine systems?
Nervous system uses
electrical impulses
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What are the signals used by the endocrine system?
Hormones
, which are
chemicals
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How are hormones carried around the body?
In the bloodstream
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How does the speed of signaling compare between the nervous and endocrine systems?
Nervous system is extremely fast
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What is a characteristic of the endocrine system's effects?
It tends to be
slower
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How long-lasting are the effects of the endocrine system?
More
long-lasting
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What might you be asked to do in the exam regarding the endocrine system?
Identify
gland locations
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Which organ have we already looked at in the context of digestion?
The
pancreas
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Besides digestion, what else does the pancreas do?
Releases
hormones
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What is the role of the hormones released by the pancreas?
Controlling blood
glucose
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Which organs release hormones involved in puberty and reproduction?
The
ovaries
and
testes
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What gland produces hormones involved in growth?
The
thyroid gland
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What else does the thyroid gland regulate?
Basal metabolic rate
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What do we call the rate at which body reactions take place?
Basal metabolic rate
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What hormone do the adrenal glands release?
Adrenaline
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When is adrenaline produced?
In times of fear or
stress
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Where is the pituitary gland located?
In the
brain
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What do scientists call the pituitary gland?
The
master gland
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What does the pituitary gland release?
Different
hormones
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What determines which hormones the pituitary gland releases?
The
conditions
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What is the key point about pituitary hormones?
They act on other
glands
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What do pituitary hormones cause other glands to do?
Release
other hormones
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What can
pituitary
hormones
trigger in the body?
A range of different effects
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