EASY
AS and A Level
IMPORTANT
Earn 100
What are the advantages of neurones being arranged in series as shown in the given image?
Important Questions on Control and Coordination
MEDIUM
AS and A Level
IMPORTANT
On a graph, draw a horizontal line right across the given figure to represent the resting potential.
EASY
AS and A Level
IMPORTANT
The resting potential is said to be — 70 mV inside (neurone). What does this mean?
MEDIUM
AS and A Level
IMPORTANT
Describe how a neurone maintains resting potential.
MEDIUM
AS and A Level
IMPORTANT
As an action potential begins, the potential difference changes from — 70 mV to +30 mV inside. Why is this called depolarisation?
HARD
AS and A Level
IMPORTANT
As an action potential begins, the potential difference changes from — 70 mV to + 30m V inside. Annotate a graph to describe what is happening in the axon membrane to cause this depolarisation.
HARD
AS and A Level
IMPORTANT
Annotate the given graph to describe what is happening between 1 ms and 2 ms.
HARD
AS and A Level
IMPORTANT
If the action potential starts at time 0, how long does it take for the resting potential to be restored?
MEDIUM
AS and A Level
IMPORTANT
Indicate the refractory period on the given graph.
