plant growth

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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!!!!!!!