Coordination and control

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Revision Summary for Biology 1 (B1.1) - Coordination and Control
Responding to change
Identify the sense organs involved in responding to light, sound, changes of
position, chemicals, touch, pressure and temperature in humans.
Describe how the nervous system works and the difference between the functions
of a sensory and a motor neurone.
Describe how hormones are involved in control and coordination.
Explain the differences between hormonal and nervous control.
Explain what is meant by the term "reflex action".
Describe the roles of receptors, sensory, relay and motor neurones, synapses and
effectors in a reflex action.
Analyse a specific reflex action in terms of stimulus ­ receptor ­ coordinator ­
effector ­ response.
Explain why reflexes are so important.
Explain how a synapse works.
Hormonal control of the menstrual cycle and fertility
Name the hormones which control the menstrual cycle (FSH, oestrogen and LH)
and state where each is produced.
Describes the functions of each hormone and relate each hormone to the different
phases of the cycle.
Explain the relationships between the hormones and how they interact in the
cycle.
Explain how oral contraceptives inhibit FSH production and prevent pregnancy.
Describe how treatment with FSH can help a woman produce mature eggs if her
own FSH production is low.
Describe how FSH is used in IVF treatment.
Discuss issues arising from the use of hormones to control fertility artificially.
Controlling conditions (homeostasis)
Describe how the temperature, blood sugar levels and balance of water and ions
are controlled.
Explain why it is important to control the internal environment.
Evaluate the claims of the manufacturers of sports drinks.
CEM Nov 2007

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