The Excretory System (VCE SSCE Biology): Flashcards

Organs & tissues removing waste, maintaining water/ion balance

Carbon dioxide, toxins, nitrogenous waste

$\text{NH}_2$ removed from amino acids → $\text{NH}_3$ → urea

Main nitrogenous waste from protein breakdown in mammals

Kidneys → Ureters → Bladder → Urethra

Functional unit of kidney where filtration & urine form

Filtration, Reabsorption, Secretion

Filtration - collects filtered blood from glomerulus

Reabsorbs water via osmosis using concentration gradient

Dehydration - kidneys conserving water, concentrated urine