B. The need for minerals Flashcards
Where do plants absorb minerals from ?
the soil
What form do these minerals exist in ?
In the form of inorganic ions in soil water
What are the two types of essential elements ?
Major elements ( macronutrients ) and Trace elements ( micronutrients )
Differences in the amount needed for major and trace elements ?
Major elements are needed in relatively large amounts
Trace elements are needed in very small amounts
Differences in the use of major and trace elements ?
Major elements are used to make organic compounds
Trace elements are used to regulate metabolism
List 6 examples of major elements ?
- Nitrogen
- Phosphorus
- Sulphur
- Calcium
- Magnesium
- Potassium
List 4 examples of trace elements ?
- Iron
- Zinc
- Copper
- Manganese
What will happen if major or trace elements are in short supply ?
Deficiency diseases will develop
Form absorbed by plants ( nitrogen ) ?
Nitrate / Ammonium ion
Main functions of nitrogen ?
For the synthesis of amino acids, nucleic acids and chlorphyll
Symptoms of deficiency of nitrogen ?
- Poor growth
- Yellow leaves
Form absorbed by plants ( phosphorus ) ?
Phosphate ion
Main functions of phosphorus ?
A component of nucleic acid, ATP and cell membranes
Symptoms of deficiency of phosphorus ?
- Poor growth of roots
- Purple patches on leaves
Form absorbed by plants ( magnesium ) ?
Magnesium ion
