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Cork cambium is the protective tissue of a stem. What mechanism does it use to protect the stem? Deposits of water in the cork cambium act as a barrier and protect the stem from water loss, physical damage, and invasion of pathogens. Deposits of minerals in the cork cambium act as a barrier and protect the stem from water loss, physical damage, and invasion of pathogens. Deposits of oils or waxes in the cork cambium act as a barrier and protect the stem from water loss, physical damage, and invasion of pathogens.
Before we get into the specifics of the plant tissue called cork cambium, let's first briefly review how plants grow. Primary growth occurs when plants grow toward the sunlight necessary for photosynthesis and also sink roots deep into the soil to anchor them and enable them to absorb water and nutrients.