Match the following columns:

Column I	Column II
a. ATP	1. Calcium
b. Magnesium	2. Chelator
c. Manganese	3. Macronutrient
d. EDTA	4. Micronutrient

a. ATP has Calcium. Calcium is a key regulator of mitochondrial function and acts at several levels within the organelle to stimulate ATP synthesis.
b. Magnesium is a Macronutrient. Magnesium (Mg²⁺) is an essential macronutrient of living cells and is the second most prevalent free divalent cation in plants. Mg²⁺ plays a role in several physiological processes that support plant growth and development.
c. Manganese is a Micronutrient. Manganese (Mn) is an important micronutrient for plant growth and development and sustains metabolic roles within different plant cell compartments.
d. EDTA is a chelator. Ethylenediaminetetraacetic acid (EDTA) is a medication used in the management and treatment of heavy metal toxicity. It is in the chelating class of drugs.