Osmoregulation | Urinary System - Biology IB23

Internal Osmotic Conditions

Internal Osmotic Conditions

1. Osmoconformers

2. Osmoregulators

Osmoconformers

Match osmolarity to the surrounding environment.

Osmoregulators

Maintain a constant internal osmolarity.

Drains more energy, though provides independence from the environment.

Overhydration

Excessive intake of water and bodily fluids overcome the solute concentration - hypotonic.

• Drowsiness

• Delirium

• Blurred Vision

• Confusion

• Nausea

• Coma

Dehydration

A loss of water in the body which means the solute concentration is lower than the average bodily fluids - hypertonic.

• Thirst

• Lethargy

• Low Blood Pressure

• Brain Seizure

• Raised Heart-Rate

Isotonic

Solute concentration equal to bodily fluids.

Hypotonic

Solute concentration lower than bodily fluids.

Hypertonic

Solute concentration higher than bodily fluids.