Lecture 15 - Acquisition of Ammonium and nitrate

Question 1

After C, H, O plants need more ___ than other nutrients

Answer 1

N

Question 2

what nutrients in plants are taken up in very similar ways

Answer 2

N and S

Question 3

what are the 2 major forms of N

Answer 3

nitrate (NO3-) and ammonium (NH4+)

Question 4

Nitrate in the root then goes to ______ to ammonium to amino acids.

Answer 4

nitrite

Question 5

_______ in the root goes more directly to amino acids

Answer 5

ammonium

Question 6

biological nitrogen fixation

Answer 6

fixation of N using a symbiosis in legumes

Question 7

3 categories of N in the plant

Answer 7

N uptake
N assimilation
N remobilization

Question 8

N uptake

Answer 8

inorganic N extraction from soil

Question 9

N assimilation

Answer 9

moving N to amino acid, initial destination, into first major protein

Question 10

N remobilization

Answer 10

recycling organic N within plant