FRST 303 Lecture 15: October 30, 2014
Document Summary
Frst 303 october 30th: epigeous germination we have cotyledons that are carried up into the air to become photosynthetic, hypogeous germination the seed remains in the ground and sprouts roots, shoot is negatively gravitropic, primary root growth and the 3 basic processes, cell division cells fj lga s r, cell expansion cells grow, cell differentiation specialization, root cap cells are constantly regenerating because they get ripped off as the root grows into the ground, primary root growth, the endodermis encompases the vascular bundle, is critically important for nutrition intake because it inhibits water from going in, and it purifies sea water in some plants, primary shoot growth, a zone of active cell division at the tip which is called the apical meristem, leaf primordial will cover up the apical meristem and provide some protection, stems grow through cell division and due to elongation of cells in the internode.
