Inorganic ions (3.1.8) | AQA A-Level Biology - (7402) | KnowledgeSet

Inorganic ions

Biology · A-Level · AQA · AQA A-Level Biology - (7402) · Specification point · 3.1.8 · Biological molecules

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3.1.8 Inorganic ions

Content	Opportunities for skills development
$Inorganic ions occur in solution in the cytoplasm and body fluids of organisms, some in high concentrations and others in very low concentrations. Each type of ion has a specific role, depending on its properties. Students should be able to recognise the role of ions in the following topics: hydrogen ions and pH; iron ions as a component of haemoglobin; sodium ions in the co-transport of glucose and amino acids; and phosphate ions as components of DNA and of ATP.$

Content

Opportunities for skills development

Inorganic ions occur in solution in the cytoplasm and body fluids of organisms, some in high concentrations and others in very low concentrations. Each type of ion has a specific role, depending on its properties. Students should be able to recognise the role of ions in the following topics: hydrogen ions and pH; iron ions as a component of haemoglobin; sodium ions in the co-transport of glucose and amino acids; and phosphate ions as components of DNA and of ATP.