Flashcard Set Preview
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| 1 |
Create a list of micronutrients common to plants and animals
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Micro-zinc-chloride-iron-manganese-nickel-copperFe Cu Ni Cl Mn Cl
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| 2 |
Create a list of macronutrients
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Macro-Nitrogen-phosphate-potassium-calcium-magnesium-sulfurNPK is fertilizer strength N...
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| 3 |
What are the characteristics of "essential" nutrients?
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Required for normal growth/ reproduction-plant cannot complete its life cycle with nutrients AND-required...
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| 4 |
Identify the three zones of the root.Which zone does most nutrient uptake occur?How is the...
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Zone of maturation: has root hairs and where the older cells complete their differentiation...
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| 5 |
What is the advantage to plants of pumping protons from root cells?
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changes the electrochemical gradient which allows for the uptake of positively charged micronutrients --protons...
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| 6 |
Explain how is the electrochemical gradient used to import K+ and NO3-?
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When H+ ions are pumped across it creates a electrochemical gradient. This allows the formation...
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| 7 |
Why is nitrogen "very expensive" for plants to acquire?
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Nitrogen is plentiful but N2 cant be used by plants because its in a very stable form with...
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| 8 |
How to rhizobia colonize a root?
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1. Root hairs release a flavonoid that attracts rhizobid which then move into the root hairs2....
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| 9 |
Examples of genes in legumes that encode products that specifically help rhizobia
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Leghaoglobin: produced by the plant for the bacteria to absorb O2, protect bacteria from...
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| 10 |
Fixation of N2 in rhizobia
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1. N2 (16 to 24 ATP are added)2. Hydrogen ions go in3. 8 electrons go in 4. making NH4+...
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| 11 |
How does the presence of leghemoglobin influences the efficiency of N2 fixation? Which...
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Plant produces leghemoglobin--- allows for more efficient nitrogen fixation
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| 12 |
What do epiphytes, parasitic plants and carnivorous plants have in common?How do they differ?
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All feed on other organismsepiphytes are non parasitic they can live with the plant in harmony...
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| 13 |
where does most micronutrient uptake occur in roots?
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root hairs
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| 14 |
phytoremediation
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use of plants to clean up dirty soils --some plants can take up toxins to clean the soil
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