A2 Booklet 3- Survival Responses and Coordination Flashcards
What is a stimulus?
hst
What are taxes?
kb
What are kinesis?
g
How does the choice chamber work?
rhs
What is a tropism?
jk
What is IAA?
How does it relate to tropisms?
bippp
How does IAA control the direction of growth in geotropism and phototropism?
htar
What experiment involves IAA and agar?
jv
What is coordination in mammals and why is it important?
htrs
What is the endocrine system?
What is the nervous system?
rths
What is the structure of the nervous system?
arth
What are the three main types of nerve cell? What are their functions?
yr
What is the structure of a myelinated neurone?
kty
What are reflexes?
k
What is the process of a reflex arc?
kb
What is the resting potential inside a neurone?
What is the threshold?
sth
What is potential difference?
hta
How is resting potential maintained in a neurone?
tth
Explain how a nerve impulse/action potential propagated along a neurone
sht
What is the refractory period?
haet
What is the “All or Nothing principle?
hthet
What main factors affect the speed of conductance (transmission) along neurones?
thrth
Describe a synapse
tr
What is the mechanism of synaptic transmission?
sr
Describe the two types of summation
rysj
What are inhibitory synapses and why are they good and bad?
hst
What are the four groups that drugs are put into?
sjte
How is the structure of a snyapse suited to its function?
rjy
What are Pacinian corpuscles?
srjy
What two types of light-sensitive photoreceptors are in the eye?
shr
How does visual sensitivity differ between cones and rods?
rns
What is visual acuity and how does it differ between cones and rods?
kl
How is heart rate controlled?
kv
What is meant by the term myogenic?
ht
What is the job of the sinoatrial node?
what is the job of the atrioventricular node?
eht
What are system controls heart rate?
trs
What are the two divisions of the autonomic nervous system and how do they differ?
7i
How is heart rate regulated during exercise?
syj
