15. Mineral Nutrition Flashcards
1
Q
the 3 main elements in a plant
A
C, H, O
2
Q
plants are about __ % water and ___% dry mass
A
90 ; 10
3
Q
primary macronutrients
A
N, P, K
4
Q
secondary macronutrients
A
Ca, Mg, S
5
Q
micronutrients(7)
A
Fe, Mn, Zn, Cu, B, Mo, Cl
6
Q
Liebig’s law of the minimum
A
growth is determined by whichever nutrient is shortest in supply
7
Q
plants get minerals from:
A
- soil (taken up in water via root hairs, depletion zone)
- air/leaf (dry deposition, voltaile cmpds on the leaf surface)
- prey (carnivorous plants
- hosts (if plant if parasitic)
- symbiotic relationships (microorganisms, fungi)
8
Q
turgor
A
the maintenance of water swelled cells
9
Q
potassium is important for:
A
fertility, turgor, stress tolerance, stomates, psynth, trans, ionic balance, enzymes
10
Q
potash
A
mined potassium, includes many different forms of K
