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11th Class - Biology | Chapter: Mineral Nutrition MCQs
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(A) Greenhouse effect is a natural Phenomenon
(B) Eutrophication is a natural phenomenon in freshwater bodies
(C) Most of the forests have been lost in tropical areas
(D) Ozone in upper part of atmosphere is harmful to animals
(A) Zinc
(B) Chlorine
(C) Manganese
(D) Boron
(A) bending of leaf tip
(B) formation of anthocyanins
(C) poor development of vasculature
(D) appearance of dead necrotic tissue
(A) Closing of stomata
(B) Biosynthesis of 3-IAA
(C) Synthesis of chlorophyll
(D) Oxidation of carbohydrate
(A) Ca, Zn, B
(B) Fe, Mn, Cu
(C) Cl, C, Ca
(D) Ni, Mo, H
(A) nitrification
(B) ammonification
(C) denitrification
(D) nitrogen fixation
(A) dehydrogenase
(B) nitrogenase
(C) isomerase
(D) none of these
(A) Aspergillus
(B) Trichoderma
(C) Glomus
(D) Azotobacter
(A) Potassium
(B) Magnesium
(C) Calcium
(D) Zinc
(A) Zn
(B) Mo
(C) Ca
(D) S
(A) Copper
(B) Manganese
(C) Zinc
(D) Molybdenum
Q12) Function of laghaemoglobin during biological nitrogen fixation in root nodules of legumes is to
(A) Protect nitrogenase from Oxygen
(B) Transport Oxygen for nitrogenase activity
(C) Convert ammonium into nitrite
(D) Convert N2 to NH2
(A) iron
(B) calcium
(C) magnesium
(D) all of the above
(A) dark
(B) shade
(C) strong light
(D) Fe – free medium
(A) It is a constituent of several coenzyme.
(B) It activates the enzymes of respiration and photosynthesis.
(C) It activates enzyme catalase.
(D) It helps in maintaining anion-cation balance.
(A) Macronutrients
(B) Micronutrients
(C) Toxic elements
(D) Beneficial nutrients
(A) Na
(B) Mg
(C) K
(D) Ca
(A) Nitrate and nitrite into nitrogen
(B) Atmospheric nitrogen into ammonia
(C) Ammonia into nitrate and nitrite
(D) Nitrate into nitrite
(A) Potassium
(B) Calcium
(C) Phosphorus
(D) Copper
(A) Pseudomonas
(B) Rhizobium
(C) Azotobacter
(D) Bacillus anabaena
(A) Dilute solution
(B) Very concentrated solution
(C) Concentrated solution
(D) Very dilute solution
(A) haemoglobin
(B) leg haemoglobin
(C) cyano haemoglobin
(D) none of these
(A) Magnesium
(B) Molybdenum
(C) Boron
(D) Zinc
(A) iron
(B) calcium
(C) manganese
(D) phosphorus
(A) There is carbohydrate deficient soil
(B) There is nitrogen deficient soil
(C) Vitamin c is required
(D) Hormones are required
(A) Controlled humidity
(B) Induction of mutations
(C) Controlled irradiation
(D) Growing plants under controlled environment
(A) Mg
(B) Mn
(C) Fe
(D) Cu
(A) brings about healthy root growth
(B) promotes fruit ripening
(C) retards protein formation
(D) none
(A) P
(B) K
(C) ca
(D) Na
(A) B
(B) Mo
(C) Mn
(D) Cu
(A) Nitrogen, Protein, Kinetin
(B) Nitrogen, Protein, Potassium
(C) Nitrogen, Potassium, kinetin
(D) Nitrogen, Phosphorus, Potassium
(A) C and D
(B) A and B
(C) B and C
(D) D and A
(A) Chemoponics
(B) Hydroponics
(C) Hygroponics
(D) Aeroponics
(A) stems
(B) leaf
(C) roots
(D) buds
(A) presence of enzymes
(B) presence of organic matter
(C) presence of nutrients
(D) presence of mineral salts
(A) Nitrite reductase
(B) Cytochrome b5
(C) Ferredoxin
(D) Nitrate reductase
(A) Glomus
(B) Frankia
(C) Rhizobium
(D) Anabaena
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