BIOL 2010 Quiz: Tropisms
Document Summary
The life of a plant: radicle emergence and root growth. Tend to have an initial radicle that goes straight down with gravity- have root hairs that are single celled- increase surface area for absorption of water. Down below within the root cap, you begin to see various zones that are visible. U shaped line that goes up and there are zone below and above that each which have a different structure or shape and function associated with it. Cells hanging out of the side of the root cap are known as cell sloughing. When you"re going down through the system, you know you"ll need cells in order to push down through the soil and so you need cellular division. Cellular division occurs in the small cells near the tip below the elongation zone: that zone of cellular division is in between the root cap and the elongation region of the root.
