Class 9 Biology MCQs – Practice Test for Exam Prep

Functions of Nitrogen and Magnesium Multiple Choice Questions with Answers – PDF Download

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Functions of Nitrogen and Magnesium MCQs PDF Download – Prep Test

MCQ 1: The magnesium is important for enzymes to produce:

sugars
fats
carbohydrates
all of above

MCQ 2: The structural component of chlorophyll is:

magnesium
potassium
calcium nitrate
calcium phosphate

MCQ 3: The nitrogen is useful for plants in the form of:

nitrates
nitric acid
nitrogen dioxide
nitrites

MCQ 4: The excess amount of nitrogen leads to:

delayed fruiting only
delayed flowering only
rapid fruiting
delayed fruiting and flowering

MCQ 5: The kind of metabolism which plays an important role in the growth of stems and leaves is:

carbon metabolism
hydrogen metabolism
oxygen metabolism
nitrogen metabolism

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