Q11Written answer
Yellowish edges appear in leaves deficient in __________________ mineral .
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Yellowish edges appear in leaves deficient in Nitrogen, Magnesium, Potassium and iron.
NCERT Exemplar · Class 11 · Biology
Chapter 12: Mineral Nutrition
Practice each question, then open the answer or worked solution.
VERY SHORT ANSWER TYPE QUESTIONS
16 questionsQ12Written answer
Name the macronutrient which is a component of all organic compounds but is not obtained from the soil.
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Carbon is the macronutrient which is a component of all organic compounds but is not obtained from the soil.
Q13Written answer
Name one non-symbiotic nitrogen-fixing prokaryote.
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Nonsymbiotic nitrogen-fixing prokaryote: Azotobacter, Beijernickia etc.
Q14Written answer
Rice fields produce important greenhouse gas. Name it.
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The bacteria present in the waterlogged soil under anaerobic conditions produce Methane Gas (CH4) which is a greenhouse gas.
Q15Written answer
Complete the equation for reductive amination ______?______ + NH4+ + NADPH glutamate + H2O + NADP
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Q16Written answer
Excess of Mn in the soil leads to a deficiency of Ca, Mg and Fe. Explain.
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Manganese inhibits the translocation of calcium to the root apex hence causing its deficiency. Manganese competes with Magnesium to bind with enzymes hence causing its deficiency.