BIOL 1202 Study Guide - Midterm Guide: Sieve Tube Element, Pericycle, Xylem
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True or false: guard cells expand when k+ gets pumped into the cells. 2: which two elements make up more than 90% of the dry weight of plants, carbon and nitrogen, oxygen and hydrogen, nitrogen and oxygen, oxygen and carbon, carbon and potassium. Answer: d: the bulk of a plant"s dry weight is derived from, soil minerals, co2, the hydrogen from h2 o, the oxygen from h2o, the uptake of organic nutrients from the soil. Answer: b: which soil mineral is most likely leached away during a hard rain, na, k, ca+, no3, h+ Pull up a root and find it has bulbs. Cut grass at ground level, come back and its just as tall. Apical meristem: what is the mutualistic association between roots and fungi called, nitrogen fixation, rhizobium infection, mycorrhizae, parasitism, root hair enhancement. They have adventitious roots and absorb stuff through their leaves.
