Mineral Nutrition Objective Type Questions and Answers centers chiefly around inorganic plant nutrition, wherein we will study the techniques to recognize elements fundamental to the growth and development of plants and the standards for setting up the centrality. This chapter additionally gives a short prologue to the centrality and the system of biological nitrogen obsession. Let us discuss about some Mineral Nutrition Objective Type Questions and Answers.
1 Which of the following class of enzyme does not need manganese for its efficient activity?
(A)
Dehydrogenase
(B)
Decarboxylases
(C)
Kinases
(D)
Nitrogenase
Answer:Nitrogenase
2 Nitrogen is an important constituent of
(A) Polyphosphates
(B) Carbohydrates
(C) Proteins
(D) Lipids
Answer: Proteins
3 Element required in least quantity is
(A) Zn
(B) Mn
(C) Mo
(D) Cl
Answer: Mo
4 Function of red pigment leghaemoglobin present in root nodules of legumnious plants is to regulate
(A) CO2 supply in cells
(B) Mo supply to cells
(C) O2 supply to cells
(D) Production of phenolic compounds
Answer:O2 supply to cells
5 Essential macronutrients are
(A) Manufactured during photosynthesis
(B) Produced by growth hormoes
(C) Absorbed from soil
(D) Produced by enzymes
Answer:Absorbed from soil
6 Gene responsible for nitrogen fixation is
(A) Nif
(B) Nitrogenase
(C) Yeast alanine tRNA synthetase
(D) RNA synthetase
Answer: Nif
7 An essential element is that which
(A) Is found in plant ash
(B) Is availanle in soil
(C) Improves health of plants
(D) Is irreplaceable and indispensable for growth of plants
Answer: Is irreplaceable and indispensable for growth of plants
8 Denitrification is carried out by
(A) Nitrosomonas
(B) Nitrosocccus
(C) Nitrobacter
(D) Pseudomonas
Answer:Pseudomonas
9 Plants absorb nitrogen as
(A) Nitrate
(B) Nitrite
(C) Ammonia and Urea
(D) All the above
Answer: All the above
10 Function of leghaemoglobin during biological nitrogen fixation in root nodules of legumes is to