Mineral nutrient assimilation Flashcards Preview

EEB 162 > Mineral nutrient assimilation > Flashcards

Flashcards in Mineral nutrient assimilation Deck (14):
1

nutrient assimilation incorporate nutrients into --

organic substances

2

nitrogen make up -- of atmosphere

78%

3

nutrient assimilation among most -- reaction

energy requiring

4

acquire nitrogen from atmosphere requires breaking stable triple bond in N2 to produce

ammonia or nitrate

5

plants need to expect -- to convert NO3- into glutamine

12 ATP

6

legumes that have symbiotic relationship with nitrogen-fixing bacteria need to expend -- to convert fixed N into glutamine

16 ATP

7

-- accounts for most conversion of atmospheric N2 into ammonium (NH4+)

biological nitrogen fixation

8

N fixation requires an -- environment

anaerobic

9

-- irreversibly inactivates nitrogenase

oxygen

10

nodule formation involves special development of root hairs to allow entry of bacteria into the -- and its fusion with cell membrane

infection thread

11

infection thread is formed by --

plant vesicles

12

infection thread extends and branches into -- where vesicles composed of plant membrane that enclose bacterial cells are released into the cytosol

target cells

13

nodule formation involves many -- from released chemicals to attract bacteria to plant to coordination of bacteria and plant cell behavior during nodule formation

coordinated signals

14

plant supplies oxygen to bacteria in a tightly controlled way with --

leghemoglobin