COPPER (Cu) 63.54 Atomic weight
Copper is a trace element found both in its free state, and in mineral compounds. It is present in seaweeds, sea corals, the human liver, and many mollusks and anthropods. In humans, it helps catalyze hemoglobin formation. In the sulfate form, Copper is an activator of several enzymes in plants, and it plays a role in Vitamin A production. Vitamin A deficiency interferes with protein syntheses and subsequent reproductive growth. It aids in root metabolism. Plant uptake is in the form of ions (Cu+, Cu++).