PLANT PHYSIOLOGY
MINERAL NUTRITION
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Magnesium Ions
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Nitrate Ions
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Sucrose
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Carbon Dioxide
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Detailed explanation-1: -All plants absorb nitrogen as NO3 (nitrate ion) from the soil. These are then converted to ammonium ions to combine into amino acids and eventually convert into proteins.
Detailed explanation-2: -Plants use nitrates as a supply of nitrogen, which is needed to make proteins for healthy growth. Plants absorb nitrates in water through their roots. Nitrates are present in high levels in plant fertilisers. Without nitrates, the amount of chlorophyll in leaves reduces.
Detailed explanation-3: -Plants take up nitrate from the soil via the transporter proteins present in the root cell membrane. There are other nitrate transporters that are involved in moving nitrate within plants to different tissues as needed.
Detailed explanation-4: -Nitrates in the soil are a primary source of nitrogen which is essential for plant growth. Under normal conditions nitrates are converted to protein in the plant at about the same rates as they are absorbed into the root system.
Detailed explanation-5: -Glucose is joined with nitrates absorbed from the soil to make amino acids . These are joined together to make proteins during protein synthesis . Glucose is also converted to lipids, which is often stored in seeds.