BIOLOGICAL MOLECULES: Inorganic Ions

Inorganic Ions

Cations

Cations are positively charged ions.

Calcium Ca2+:

- increases rigidity of bones, teach and cartilage.

- important in blood clotthing and muscle contraction.

- activator for several enzymes.

Sodium Na+:

- involved in regulation of osmotic pressure, control of water levels in body fluid

- affects absoprtion of water in the kidney

- contributes to nervous transmission

Potassium K+:

- involved in control of water levels

- assists active transport

- involved in synthesis of glycogen and protein

Hydrogen H+:

- involved in photosynthesis and respiration

- involved in transport of oxygen and carbon dioxide in blood

- involved in regulation…

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