part 5 Flashcards Preview

biology mineral nutrition > part 5 > Flashcards

Flashcards in part 5 Deck (8)
Loading flashcards...
1

asymbiotic nitrogen fixation

free living bacteria in the soil fixes the nitrogen.

2

where do the bacteria get the proteins from

they get proteins from the dead organisms in the soil

3

ammonification

the proteins are broken down into amino acids which is further changed into ammonia

4

Nitrification

ammonium ions are oxidized to nitrites by Nitrosococcus and nitrites are oxidized to nitrates by Nitrobacter

5

denitrification

The process by which nitrates are reduced to gaseous compounds (N2) of nitrogen with the help of bacteria's like Pseudomonas denitrificans, Thiobacillus

6

why is nitrate converted to nitrite and nitrite to ammonia

the nitrate produced cannot be absorbed directly by the plants so the nitrate is reduced to nitrite by nitrate reductase and nitrite to amino acids by nitrite reductase

7

ammonia combines with what to form what

ammonia combines with alpha ketogluterate or oxaloacetic acid to form glutamate or aspartate

8

which plants trap other insects

insectivorous plants like Drosera (sundew) and Venus fly trap traps the insect and take their protein