Regulation of Water Balance (VCE SSCE Biology): Flashcards
📚Flashcards
Practise the cards
10 cards from this deck
ShowHide
Practise the cards
10 cards from this deck
% of water in human body
% of water in human body
55-60%
Osmolality definition
Osmolality definition
Total concentration of solute in given weight of water
Effect of hypertonic extracellular fluid on cells
Effect of hypertonic extracellular fluid on cells
Cells lose water and crenate (shrink)
Osmosis definition
Osmosis definition
Passive water transport through membrane from hypo- to hypertonic
Osmoregulation definition
Osmoregulation definition
Homeostatic regulation of osmolality via water/solute balance
ADH alternative name
ADH alternative name
Vasopressin
Aquaporins function
Aquaporins function
Transmembrane proteins facilitating water transport
ADH effects when water levels decrease
ADH effects when water levels decrease
Increases water reabsorption in kidneys & stimulates thirst
Renin function
Renin function
Enzyme initiating water & sodium reabsorption
ADH secretion when water levels increase
ADH secretion when water levels increase
Suppressed/decreased