What is the role of ADH in water regulation

ADH is a hormone made in the hypothalamus and secreted from the pituitary gland. It circulates in the blood to the collecting ducts of the kidneys where it makes aquaporin channels through the collecting duct so water may leave and be reabsorbed into the blood. 

LM

Related Biology A Level answers

All answers ▸

Describe the generation of action potentials in neurons.


Succinate is converted to fumarate by the enzyme dehydrogenase. This reaction can be inhibited by adding malonate. a) What are enzymes and what are their function? Use this information to explain how malonate acts as an inhibitor.


How are membranes classified according to their permeability?


Outline the process of protein synthesis (8 marks).