(a(i))[1]
State one alteration in a mammal's internal environment that causes ADH to be released.
(a(ii))[1]
Name the part of the body that secretes ADH into the blood.
(b)[2]
Fig. 1.1 shows a cell from one of the kidney collecting ducts. Name membrane protein A and cell structure B.
(c)[4]
The phosphorylase enzyme stimulates structure B. Describe how structure B responds to this stimulation and describe what follows from this response.