Question

question 3
choose three nutrients and explain how a plant may look if it has a deficiency in those nutrients.
plant deficiency guide
ca
calcium
stunted & misshapen
new leaves
fe
iron
yellow or white
new leaves
k
potassium
yellowing at
tip & edges
n
nitrogen
light green upper leaves
yellow & shrivelled
co₂
carbon
dioxide
white deposit
stunted growth
plants die back
mn
manganese
yellow spots
elongated holes
between veins
po
phosphate
leaves are darker
than usual
mg
magnesium
lower leaves turn
yellow from outside

Explanation:

1. Nitrogen (N): Nitrogen is crucial for chlorophyll production and overall plant growth. A deficiency leads to light - green upper leaves that turn yellow and shrivel as the plant lacks the ability to produce enough energy - related compounds.
2. Iron (Fe): Iron is involved in many enzymatic reactions and chlorophyll synthesis. A lack of iron causes new leaves to turn yellow or white as the plant cannot properly synthesize chlorophyll.
3. Magnesium (Mg): Magnesium is a central component of chlorophyll. When deficient, lower leaves turn yellow from the outside as the plant prioritizes magnesium for new growth, and the older leaves are left without enough for proper chlorophyll function.

Answer:

• Nitrogen: Light green upper leaves, yellow and shriveled.
• Iron: Yellow or white new leaves.
• Magnesium: Lower leaves turn yellow from outside.