BIOLOGY 172 Lecture Notes - Lecture 33: Surface Tension, Light-Independent Reactions, Symporter
Document Summary
Transport of water, sugar and nutrients through vascular tissue. Water loss is an inevitable consequence of photosynthesis. Transpiration is process where plants have to get carbon dioxide and open stomata to release oxygen and water. Also loses water in photosystem ii when oxidizes water. Provide gas exchange in plant tissue (co2 in, o2 and h2o out) Increase in co2, it is more likely to get co2 in the stomata needs to be open for less time. Increase push from soil up against the gravity to reach leaves. Water outside is absorbed by epidermal root hair cells. Designed so water can move rapidly through the system via capillary actions (dead cells) Water movement is aided by water and capillary action. Surface tension is the pull of the water molecules at air-water interface. Adhesion is when water molecules stick to other molecules. Cohesion is when water molecules stick to other water molecules. Soil roots stem/xylem leaves atmosphere.
