Which ions are components of DNA and ATP?

Which ions have a role in pH?

Which ions are a component in haemoglobin?

Which ions have a role in the transport of glucose and amino acids?

How could an ion be described?

Which type of ion is positively charged?

Which type of ion is negatively charged?

How would one describe an inorganic ion?

How is pH calculated?

What is the formula for calculating pH from the concentration of hydrogen ion?

Which ion forms part of the chlorophyll molecule?

Which ion has a role in blood clotting in animals?

Which ion is important for the absorption of light energy for photosynthesis?

Which ion is (most) involved in the transmission of neurotransmitters between neurones in muscle contraction?

Which ion is associated with haemoglobin in red blood cells?

Which ion moves out of cells lining the lungs so that mucus is not thick?

Which ion is used in the production of ATP, nucleic acids and phospholipids?

Which ion is pumped into cells by active transport in exchange for sodium ions?

Which ion is used to produce amino acids and proteins?

How would one best describe an organic ion?