Franklin Pierce University PA 210 QUIZ 6 TRUE/FALSE QUESTIONS 1 TO 4 1) Liebig’s Law of the Minimum states that plant growth can be no greater than that level allowed by the growth factor present in the highest amount 2

Franklin Pierce University

PA 210

QUIZ 6

TRUE/FALSE QUESTIONS 1 TO 4

1) Liebig’s Law of the Minimum states that plant growth can be no greater than that level allowed by the growth factor present in the highest amount

2.  Cold temperatures reduce plant nutrient uptake because of reduced water uptake by plant

3.  95 – 99% of soil N is in organic form

4.  Mineralization is the conversion of NH₄⁺ ions to organic forms in microbial and plant cells
5. Bacterial oxidation of NH₄⁺ ions to nitrites, then nitrates is called _______________
6.  

_____________

7. Excess nutrient levels in lakes and slow moving streams may result in____________

8. One of the problems with elevated NO and N₂0 in the atmosphere is the formation of _________ or ___________ or __________ or __________________
9. The enzyme ______________ catalyzes the reduction of N₂ to NH₃ in a process called____________