BIOL 1002 : Bio Test 3
Document Summary
This removes oxygen out of the nodule and therefore it can fix nitrogen from the plant. Osmosis: diffusion of high [water] concentration to low [water] concentration; going from high water pressure to low water pressure. Zylum; water moves from the roots up from high water pressure to low water pressure, the nutrients move with them. Transport of sugar source and sink model : moves from sources (things that make sugar, like leaves) to sinks (things that use up sugar, like fruits, goes up and down and can change direction. At sources, sugars are actively transported into phloem: 2. Water follows by osmosis from source cells and xylem; this creates high pressure: 3. At the sink, sugars diffuse out of the phloem and water follws by osmosis; sugar solution flows from high to low pressure: 4. Water may be taken up by the transpiration stream in the xylem. Homeostasis and the organization of the animal body.
