BIOL 1030 Lecture Notes - Lecture 27: Seed Dormancy, Cork Cambium, Vascular Cambium

• School: University of Manitoba
• Department: Biological Sciences
• Course: BIOL 1030
• Professor: Kevin G.Scott

Document Summary

Biol 1030 part 2: plants with dr. carla zelmer. 2: the continuous increase in the diameter (girth/width) of the plant, occurs in both the stem and the roots, secondary roots formed each have a ram, this is characteristic of woody plants (secondary xylem produced forms woody) These vacuoles merge and take up solutes (become hypertonic) so water move into the cell. The cell wall loses rigidity (the microfibrils on the sides loosen up) Turgor pressure (the pressure water exerts on the cell wall) is greater than cell wall pressure, so the cell elongates. The zone of elongation is responsible for this: root hairs increase the sa of the root (they appear in the zone of maturation) The main solute that"s being transported/ that determines the flow of water. It is sandwiched between the lower and upper epidermal tissues: 2 types of mesophyll: Secondary growth: secondary growth increase the diameter (width) of the stem.