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Plant Nutrition
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All living organisms need food to survive
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They are called autotrophic(selffeeding)

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Plants use raw materials to make their own food
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The
enzymes are in the plant while the energy is from the sunlight

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There are chloroplasts in a plant
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Photosynthesis means making with light

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The glucose can be converted to starch to be stored
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Photosynthesis equation = Carbon Dioxide + Water ― Glucose + Oxygen
When testing for starch there are various steps used, these include
Leaf boiled to soften it and breakdown cell walls
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It is dipped in to water to wash out the ethanol and allow penetration for
iodine
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If the leaf turns bluish black we can
say there is a presence of starch
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This is thicker on the upper side
than the lower side because the upper side more exposed to sunlight
Upper epidermis: it is the covering which one cell thick
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They have a lot of chloroplasts and the dense packing allows the
maximum absorption of light
Vein: this is the transport of the leaf, it consists of the xylem and
phloem vessels
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The air spaces between them help the diffusion of CO2 in and
oxygen out
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They are mainly in the lower epidermis than the upper
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In this process all factors are controlled an if there is a
shortage this factor is increased

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Green plants can respire and photosynthesise
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So it will respire

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But if the photosynthesis exceeds the rate of respiration, the plant will
remove carbon dioxide and bring oxygen

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The glucose made from photosynthesis can be used as a storage in the
form of starch, making cellulose, used for energy and so on

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The compensation point is the point where the rate of both
photosynthesis and respiration exactly balance
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They absorb these minerals in form of ions
from the soil
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In cultivated soils ground is prepared and then the crops are harvested
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These might also be artificial

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named NPK which contains nitrogen, phosphorus and potassium
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Magnesium forms
part of the chlorophyll without it the leaves turn yellow and lack

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chlorophyll
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Nitrogen is required for a lot of food especially proteins, deficiency
causes severe symptoms

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