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Index
 »Â
mineral nutrition
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Chapter 1
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Level 1
level: Level 1
Questions and Answers List
level questions: Level 1
Question
Answer
in glycolysis, glucose molecule is converted into
pyruvic acid
which one of the following elements is not an essential micronutrient for plant growth
Ca
required for synthesis of mitotic spindle
calcium
required for absorption of calcium
boron
essential for constitution of nucleic acid
phosphorus
require for ionic balance
chlorine
required for activate repiratory enzyme
manganese
component of middle lamella
calcium
enzyme activator
zinc
component of ferredoxin
iron
in which of the following, all three are macronutrients
nitrogen, calcium and magnesium
mineral known to be required in large amounts for plant growth include
phosphorus, potassium, sulphur, calcium
constituent of biotin
sulphur
best defined function of manganese in green plants is
photolysis of water
readily immobilisation
potassium
which elements in plants is not remobilized
calcium
essential for protolysis of water
maganese
manganese is required in
photolysis of water during photosynthesis
boron in green plants assists in
sugar transport
passive absorption of minerals depend on
temperature
phosphorus and nitrogen ions generally get depleted in soil because they usually occur as
both positively and negatively charged but disproportionate mixture
which one is essential mineral, not constituent of any enzyme but stimulates the activity of many enzymes
K
the deficiencies of micronutrients, not only affects growth of plants but also vital functions such as photosynthetic and mitochondrial electron flow. among the list given below, which group of 3 elemnts shall affect most, both photosynthetically and mitochondrial electron transport
Cu, Mn, Fe
grey spots of oat are caused by deficiency of
Mn
the plants grown in magnesium-deficient but urea sprayed soil would show
yellowing of leaves
which of the following is not caused by deficiency of mineral nutrition
etiolation
mycorrhiza is a symbiotic relationship between roots of higher plants and
fungi
the first stable product of fixation of atmospheric nitrogen in leguminous plants is
ammonia
both photophosphorylation and oxidative phosphorylation involve uphill transport of
protons across the membrane
for its action nitrogenase requires
high input of energy
a procaryotic autothrophic nitrogen fixing symboint is found in
cycas
nitrifying bacteria
oxidises ammonia to nitrates
one of the free living, anaerobic nitrogen fixer is
rhodospirillum
symbiotic nitrogen fixer
frankia
a free living nitrogen-fixing cyanobacterium which can also form symbiotic association with the water fern Azolla is
anabenna
in plants insulin and raphides
reserved food material
which of the following is a free living aerobic nonphotosynthetic nitrogen-fixer
azotobacter