Inorganic Ions

Question 1

Cofactor and deficiency:

Answer 1

•Cofactor: A non-protein chemical compound that is needed for the protein’s biological activity (e.g. inorganic ions).

•Deficiency:
Some ions are required in large amounts – macronutrients (main elements), some in small quantities – micronutrients (trace elements). Both humans and plants display deficiency symptoms if they do not consume enough of a particular ion. E.g. deficiency of copper in plants causes young shoots to die black.

Question 2

Cations

Answer 2

Ca2+
Na+
K+
H+
NH4+

Question 3

Anions

Answer 3

NO-3
HCO3-
Cl-
PO4-
OH-