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Hello everyone, the question is what is an ergastic substance? an ergastic substance is a non -protoplasm material that one can find in the cells.
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These are usually products of metabolism.
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Include crystals, oil drops, gums, tannins, resins, and other compounds.
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Some of these substances help the organism function.
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Organism functions keep up the cell structure or just the cell structure or just stored the food material such as oil are fat during the life of a cell they can appear and disappear they can appear and disappear the ergastic substance may appear in the protoplasm in vacuoles or in the cell wall.
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The ergastic substance are usually absent in tissue with dividing cells such as meristem tissue, such as meristem tissue in plants.
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The plant cells often store noxious substance in leaf cells as a kind of defense against the herbivory.
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In animals, storing the noxious substance is done as defense against the predation.
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Storing the venom for use in biting or stings is common in some group of...