Inorganic Ions
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Where do inorganic ions occur in organisms?
In solution in the cytoplasm and body fluids
Do all inorganic ions occur at the same concentration?
No, some occur in high concentrations and others in low concentrations
What do hydrogen ions determine?
The pH of a substance
How does hydrogen ion concentration affect pH?
Higher hydrogen ion concentration lowers pH
Which ion is important in controlling blood pH?
Hydrogen ions
What is the role of iron ions in the body?
They are a component of haemoglobin
What is haemoglobin?
An oxygen-carrying molecule in red blood cells
Which ion is involved in oxygen transport?
Iron ions
What is the role of sodium ions?
They are involved in co-transport
What substances are co-transported with sodium ions?
Glucose and amino acids
Which ion is a component of DNA?
Phosphate ions
Which ion is a component of ATP?
Phosphate ions
Why are phosphate ions biologically important?
They form part of DNA and ATP
Note 
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