Excretion Flashcards
.
Kidney
Excretion
Osmoregulation
Excretion
It is the removal of metabolic waste (such as urea) and excess metabolites from the body
Osmoregulagion
It is the process of regulating water potential in order to keep fluid and salt balance within an organism
Metabolism
The chemical reactions that occur inside living cells
Organs of excretion
Lungs
Kidneys
Skin
Waste products produced by plants
Oxygen
Carbon dioxide
Water
Which plant structure allows gaseous waste products to exit the leaves
Stomata
The process by which gaseous waste products exit the leaves of plants
Diffusion
Excretion
The removal from the body of the waste products of metabolism and any substances present in excess
Examples of waste products produced by human metabolism
Water from respiration
Excretion in humans: skin
Sweat
Excretion in humans: lung
Carbon dioxide and water
Excretion in humans: kidneys
Urea
Egestion example:
Faeces
Kidney excretes
Urea, excess water and excess salts
Main function of kidney
Regulating water content by osmoregulation.
Excretion of toxic metabolic waste products and excess substances
The tubes that connect the kidneys to the bladder
Ureters
Nephrons
Are tiny tubes found in kidney
Role of nephron
To produce urine
By what process is glucose reabsorbed by
Active transport
Urea
Breakdown of excess protein
Urine contains:
Water
Urea
Ions
