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Biology organisms responses

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Quiz by MedSoc
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Last updated: December 4, 2016
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First submittedDecember 4, 2016
Times taken7
Average score56.3%
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Hint
Answer
Detectable change in the internal or external environment
Stimulus
Used to detect a (above answer)
Receptor
A simple directional response (to number 1)
Taxis
A non directional response, where (number 1s) detection leads to change in speed and rate at which the organism changes direction.
Kinesis
Growth factor of part of a plant in response to a directional stimulus.
Tropism
What does IAA stand for?
Indoleacetic acid
Three types of neurone
Motor sensory relay
Motor nervous system is split into
Voluntary autonomic
Hint
Answer
Sensor used to detect pressure
Pacinian corpuscle
What special type of sodium channel is used in the above sensor
Stretch-mediated
Pigment in rod cells
Rhodopsin
Pigment in concert cells
Iodopsin
Two sections of the autonomic nervous system
Sympathetic parasympathetic
Point that initiates contraction of cardiac muscle
SA node
Region of the brain that controls heart rate
Medulla oblongata
Where chemoreceptors can be found
Carotid sinus aortic arch
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