inorganic ions Flashcards
what are the 4 inorganic ions present in organisms?
MAGNESIUM mg2+
CALCIUM ca2+
PHOSPHATE PO4^3-
IRON fe2+
why is mg2+ needed in animals and plants?
animals- MINERALISATION of BONES, lack
causes FRAGILE bones
plants- component of CHLOROPHYLL, lack
leads to CHLOROSIS (yellow leaves)
why is ca2+ needed in animals and plants?
animals- STRUCTURAL component of
BONES and TEETH
plants- STRUCTURAL component of CELL
WALLS, lack causes NECROTIC areas
(curling)
why is PO4^3- needed in animals and plants?
animals- found in PHOSPHOLIPDS which
are needed to form BILAYER
plants- “ “
why is fe2+ needed in animals and plants?
animals- form HAEMOGLOBIN and is required for
TRANSPORTING oxygen in the blood
plants- required for the formation of CHLOROPHYLL
what nutrients are needed for LARGE concentrations?
MACRONUTRIENTS
what nutrients are needed for SMALL concentrations?
MICRONUTRIENTS
