PLANT PHYSIOLOGY
MINERAL NUTRITION
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Nitrogen
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Phosphorus
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Magnesium
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Carbon
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Detailed explanation-1: -Carbon is a macro nutrient, which is an essential component of all organic compounds. Plants obtain carbon in the form of carbon dioxide from atmosphere, not from the soil.
Detailed explanation-2: -Which of the following mineral nutrient is not obtained by plants from the soil? Solution : Carbon is not obtained by plants from the soil, it is obtained from ‘CO 2‘ (from atmosphere).
Detailed explanation-3: -Thus, the correct answer is ‘Carbon.
Detailed explanation-4: -At least 17 elements are known to be essential nutrients for plants. In relatively large amounts, the soil supplies nitrogen, phosphorus, potassium, calcium, magnesium, and sulfur; these are often called the macronutrients.
Detailed explanation-5: -A vitamin is an organic molecule (or a set of molecules closely related chemically, i.e. vitamers) that is an essential micronutrient that an organism needs in small quantities for the proper functioning of its metabolism.