#B3.3a
explain the importance of maintaining a constant internal environment in response to internal and external change
allowing metabolic reactions to proceed at appropriate rates
#B3.3b
describe the function of the skin in the control of body temperature
detection of external temperature, sweating, shivering, change to blood flow
#B3.3c
explain how insulin controls blood sugar levels in the body
#B3.3d
explain how glucagon interacts with insulin to control blood sugar levels in the body
#B3.3e
compare type 1 and type 2 diabetes and explain how they can be treated
#B3.3f
explain the effect on cells of osmotic changes in body fluids
higher, lower or equal water potentials leading to lysis or shrinking (no mathematical use of water potentials required)
#B3.3g
describe the function of the kidneys in maintaining the water balance of the body
varying the amount and concentration of urine and hence water excreted
#B3.3h
describe the gross structure of the kidney and the structure of the kidney tubule
#B3.3i
describe the effect of ADH on the permeability of the kidney tubules
amount of water reabsorbed and negative feedback
#B3.3j
explain the response of the body to different temperature and osmotic challenges
challenges to include high sweating and dehydration, excess water intake, high salt intake responses to include mechanism of kidney function, thirst