plant growth
plants grow using food they make themselves by photosynthesis. But to keep healthy they need three important minerals which they get from the soil through their root hairs.
potasium
potassium helps biological agents called enzymes to work properly. these enzymes are needed for photosynthesis and respiration.
if deficiency: yellow leaves with dead bits.
phosphates
Phosphates provide phosphorus needed for photosynthesis and respiration
If deficiency: poor root growth and purple younger leaves
root haris
Root hair provides a large surface area to give good absorption.
they have a thin cell membrane which also helps a lot with absorbtion
They take in water and four essential minerals.
Nitrates
nitrates provide nitrogen which is needed for making proteins.
if deficiency: small plant, yellow older leaves.
magnesium
helps chlorophyll build.
if deficiency: yellow leaves
not in book if asked to name three name others!!!!!!!
