A growth medium or culture medium is a liquid or gel designed to support the growth of microorganisms or cells, or small plants like the moss Physcomitrella patens. There are different types of media for growing different types of cells.
Best Answer: Reading some arbitrary definition of a crystal might get confusing so I'll simplify it. What you are thinking of are the chemical compound called calcium oxalate.They form needle shaped crystals in a plant cell's vacuole that pretty much look like toothpicks. Their main function is to protect the plant from herbivores.They aren't chemically poisonous but because of their shape, they can prick soft tissue.hen an herbivore eat a part of the plant, the vacuoles are smashed up and these needle like crystals are exposed along with the sap of the plant. Perhaps you've been exposed to these crystals when you squeeze a part of a plant and touch its sap.
(a clear rigid molecular covering around the cell that gives it complete c â¦ ontrol what does in and out of the cell.) if the ruse crystal fails to stop the harmful virus or bacteria, the cell collapse and shuts down killing the bacteria inside of it so it doesn't spread to other cells.Feel free to ask any questions! Five Beautiful Pictures of Crystals A crystal is a solid whose molecules and atoms are arranged in an orderly way, homogeneously throughout the solid itself. 2  They usually have characteristic shapes and form typâ¦. 3  How to Grow Crystals Growing crystals is a fun science experiment anyone can do at home.