Question

which of the following can be cofactors?
organic molecules (checked)
inorganic molecules (checked)
anions (checked)
cations (checked)
retry (button)

Explanation:

Cofactors are non - protein chemical compounds or metallic ions that are required for an enzyme's activity. Organic molecules (like coenzymes which are organic cofactors), inorganic molecules (like metal ions), anions (e.g., phosphate ions can act as cofactors), and cations (e.g., $Mg^{2+}$, $Fe^{2+}$ which are common metal ion cofactors) can all serve as cofactors. So all the given options (organic molecules, inorganic molecules, anions, cations) can be cofactors.

Answer:

A. organic molecules, B. inorganic molecules, C. anions, D. cations (assuming the options are labeled A - D in order)