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Excretion + Osmosis

TermDefinition
Active Transport Absorption of molecules into cells against the diffusion gradient, using energy
ADH (Anti diuretic hormone) Hormone produced by hypothalamus that causes water retention in the kidney
Bladder Sac filled with fluid or air. Holds urine produced in kidneys
Bowmans Capsule Double walled cup shaped chamber at start of nephron
Diffusion Movement of molecules or ions across an area of high concentration to an area of low concentration
Glomerular filtrate Plasma that passes from the blood into bowmans capsule
Glomerulus Knot of blood capillaries found in bowmans capsule
Homeostasis Maintenance of a constant internal environment
Lenticels Specialised pores in woody stems used for gaseous exchange
Nephron Functional unit of kidney
Osmoregulationn Control of water and salt levels in organisms
Osmosis Movement of water from an area of high concentration of water to an area of low concentration of water across a semi permeable membrane
Pituitary gland Gland attached to base of midbrain producing hormones
Plasma Liquid part of blood composed of water and dissolved solutes
Sphincter Muscle Ring of muscle surrounding an opening that controls the movement of substances through it
Urethra Tube carrying urine out of bladder
Urination Release of urine from bladder along urethra
Created by: cilly
 

 



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