BIO 123 Chapter 36: Reading Note

• School: Syracuse University
• Department: Biology
• Course: BIO 123
• Professor: Jason Wiles

Document Summary

36. 1: adaptations for acquiring resources were key steps in the evolution of vascular plants. Xylem: transports water and minerals from roots to shoots. Phloem: transports products of photosynthesis from where they are made or stored to where they are needed. Stems serve as supporting structure for leaves and as conduits for the transport of water and nutrients. The largest leaves are typically found in species from tropical rain forests and the smallest are usually found in species from dry or very cold environments. Phyllotaxy: the arrangement of leaves on a stem, important in light capture, determined by the shoot apical meristem. When there are many layers of vegetation, the shading of the lower leaves is so great that they photosynthesize less than they respire the nonproductive leaves undergo programmed cell death and are eventually shed -- self-pruning. Open stomatal pores allow for the diffusion of co2 into the photosynthetic tissues. Root architecture and acquisition of water and minerals.