1.10 Inorganic Ions

Question 1

Where are inorganic ions found in the body?

Answer 1

• In solution in the cytoplasm of cells and body fluid
• Some in high concentrations and some in low concentrations

Question 2

Hydrogen ions (H+)

Answer 2

Maintain pH levels in body, the more H+ the more acidic

Question 3

Iron ions (Fe2+)

Answer 3

Component of haem group of haemoglobin, allowing oxygen to bind for transport

Question 4

Sodium ions (Na+)

Answer 4

Involved in co-transport of glucose/amino acids, action potentials and water potential

Question 5

Phosphate ions (PO43-)

Answer 5

Component of nucleotides, ATP, phospholipids