BIOL 2500 Lecture 7: Topic 7 - Plant Adaptations

• School: University of Manitoba
• Department: Biological Sciences
• Course: BIOL 2500
• Professor: k

Document Summary

Plants vs. environmental heterogeneity plants have evolved a variety of adaptations to successfully grow, reproduce and survive across the entire range of environmental conditions on earth. Most ecosystems require the initial colonization of plants. Light reactions - generate energy transferred by carrier molecules and produces. Leaf tissue - photosynthesis (uptake of co2: stem tissue - structural support (gain access to light, root tissue - water and nutrient uptake from the soil. Plant adaptations: plants adapt to different environmental conditions to keep: Photosynthesis > respiration (+ carbon balance grow) Photosynthesis > transpiration (+ water balance survive) Individuals must tolerate environmental conditions that influence the acquisition of all essential resources: therefore, balance adaptations to multiple environmental conditions all at once. Adaptations that allow a plant to successfully grow, survive and reproduce under one set of environmental conditions may limit its ability to do equally well under different environmental conditions. Plants vs. light: tree top (direct sunlight) smaller, thicker leaves.