Q:

Why do plants need magnesium?

A:

Quick Answer

Plants need magnesium for photosynthesis, which is a set of chemical reactions used to convert light into chemical energy for nutritional purposes. Magnesium is the key element found in chlorophyll molecules, which are essential to the photosynthesis process.

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Full Answer

Chlorophyll is a chlorin pigment structurally similar to other pigments, such as heme. A magnesium ion is encased at the center of every chlorin ring, and several side chains branch off from this ring.

There are four forms of chlorophyll that occur naturally. They are known as a, b, c and d. The most widespread form found in plants is chlorophyll a.

Magnesium is classified as an alkaline earth metal. It is the 8th most frequent element found in the Earth's crust.

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