Inorganic ions

Question 1

What are the four organic ions

Answer 1

H+ , Na+ , PO4 3- , Fe3+

Question 2

What does H+ ion do?

Answer 2

The concentration of H+ ions determines the pH of a solution.
Hydrogen ions are used to make concentration gradients in organisms

Question 3

What does sodium ion do?

Answer 3

Sodium ions are used to co-transport glucose molecules in the kidney.

The sodium potassium pump acts to create a concentration gradients between sodium and potassium.

Question 4

What does phosphate ion do?

Answer 4

The phosphate ion is a component of ATP and ADP - they have an important role in storing energy in ATP molecule.

Phosphate is also a component of DNA,forming the sugar phosphate backbone of the double helix molecule.

Question 5

What does iron ions do?

Answer 5

Iron ions are found in the haem groups of the 4 polypeptide chains in the haemoglobin molecule.
They have a role to play in the transport of oxygen.