IB Biology Sub-topic D3.3 Definitions
This page contains our IB Biology definitions for sub-topic D3.3. By learning each one of these definitions, you will fully cover the content for IB Biology 'Further homeostasis'.
HL
dehydration
Excessive loss of water that raises the internal solute concentration
excretion
The process of removing waste products from the body
HL
hemodialysis
The passing of blood out of a vein into a semi-permeable dialysis membrane tube in dialysis fluid
HL
kidney transplant
The surgical implantation of another individual’s donated kidney. Living donors can donate one kidney or dead donors one kidney to two people
HL
osmoconformer
An organism that does not control its own internal concentration and thus it is the same as the external solute concentration
HL
osmoregulation
An organism's control of its internal solute concentration
HL
osmoregulator
An organism that maintains a constant internal solute concentration, regardless of the external solute concentration
HL
overhydration
Excessive intake of water lowers the internal solute concentration
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