HARD
AS and A Level
IMPORTANT
Earn 100
Glucagon and ADH are both hormones that are transported around the whole body in the blood. The two hormones use the same intracellular signalling cascade. Explain why ADH does not stimulate the signalling cascade that promotes glycogenolysis in liver cells.
Important Questions on Control and Coordination
MEDIUM
AS and A Level
IMPORTANT
Explain why steroid hormones, such as progesterone and oestrogen, can pass easily through the cell surface membrane whereas other hormones cannot.
MEDIUM
AS and A Level
IMPORTANT
Insulin, glucagon, and ADH coordinate aspects of homeostasis. Make a table to summarise everything about these three hormones.
EASY
AS and A Level
IMPORTANT
Make a table to compare the structure and function of motor and sensory neurones.
EASY
AS and A Level
IMPORTANT
What is the relationship between an axon, the myelin sheath, and the nodes of Ranvier of a myelinated neurone.
EASY
AS and A Level
IMPORTANT
What are the advantages of neurones being arranged in series as shown in the given image?
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.
