Question 2 Which one of the following is not a micronutrient? A Magnesium B Molybdenum C Boron D Zinc Question 4 Question 5 Which one of the following elements in plants is not remobilized? A Calcium B Phosphorus C Sulphur D Potassium Question 6 Question 8 The minerals involved in water-splitting reaction during photosynthesis are A Magnesium Chlorine B Potassium and Manganese C Manganese and Chlorine Question 11 Which of the following minerals activate the enzymes involved in respiration? A Nitrogen and phosphorus B Magnesium and manganese C Potassium and calcium D Sulphur and iron Little leaf is caused due to the deficiency of A Boron B Copper C Zinc D Phosphorus Question 5 Most plants obtain their nitrogen from the soil in the form of Question 9 NPK denotes A Nitrogen, Protein, Kinetin B Nitrogen, Protein, Potassium C Nitrogen, Potassium, kinetin D Nitrogen, Phosphorus, Potassium Question 12 Phosphorus is a structural element in A Fat B Starch C Nucleotide D Carbohydrate Question 15 Plants absorb mineral salts from the soil solution through A The cell wall which is semipermeable B Perforation at the apex of rot hair cells C A semipermeable membrane into the cytoplasm CD None of these Question 1 Immature leaf of plants fall down due to deficiency of A Sulphur B Zinc C Phosphorus D Sodium Question 2 Which one of the following mineral elements plays an in biological nitrogen fixation? A Copper B Manganese C Zinc D Molybdenum Question 3 Important contribution of molybdenum is A Chromosome condensation B Nitrogen fixation C Flower growth D Carbon fixation Question 5 In hydrophytic plants, water and salts are absorbed by A Stem B Leaves C Roots D Outer layer of plants Question 7 Nitrifying bacteria A Reduce nitrates to free nitrogen B Oxidize ammonia to nitrates C Convert free nitrogen to nitrogen compounds D Convert proteins into ammonia Question 9 Inorganic nutrients are present in the soil in the form of A Molecules B Atoms C Electrically charged ions D Organic compounds Question 10 Insectivorous plants are called so because A All insects eat these plants B Insects like such plants C They are herbivorous D They catch insects for food Question 11 Insectivorous plants are usually adapted to A Water rich soils B Soils deficient in sugars C Soils rich in trace elements D Soils deficient in nitrogenous compounds Question 12 Insectivorous plants grow where A There is carbohydrate deficient soil B There is nitrogen deficient soil C Vitamin c is required D Hormones are required Question 13 Interval cork Apple/browning of cauliflower is deficiency symptom of A Mo B B C Cu D Zn Question 14 Ion carriers are located in A Cell wall B Intercellular spaces C Cell membrane D Nucleus Question 15 Ions are absorbed by the plants through A Difference in water potential B Carriers and pumps C Molecular diffusion D Question 1 Carnivorous plants are found on A Nitrogen deficient soil B O2 deficient soil C CO2 deficient soil D None of these Question 2 Carrier proteins are involved in A Water transport B Water evaporation C Active transport D Passive transport Question 3 Chlorosis occurs when plants are grown in A Dark B Shade C Strong light D Fe free medium Question 4 Conduction of inorganic materials in plants occur mainly through minerals absorbed by roots move to the leaf through A Sieve tube B Phloem C Xylem D None of these Question 5 Cultivation by sand culture is also called A Soil-less cultivation B Green house effect C Photorespiration D Protein synthesis Question 6 Deficiency of mineral nutrients is not responsible for A Shortening of internodes B Necrosis C Chlorosis D Etiolation Question 7 Element essential for photolysis of water is A Nitrogen B Oxygen C Chlorine D Carbon Question 8 Essential macro elements are A Manufactured during photosynthesis B Produced by enzymes C Absorbed from soil D Produced by growth hormones Question 9 Exanthema is due to deficiency of A B B Mo C Mn D Cu Question 10 Fall of immature leaf is due to deficiency of A Sulphur B Phosphorous C Sodium D Zinc Question 11 Fertility of soil in rice fields can be improved by A Blue green algae B Sodium chloride C Gypsum D Rhizobium Question 12 Function of zinc is A Closing of stomata B Biosynthesis of 3-IAA C Synthesis of chlorophyll D Oxidation of carbohydrate Question 13 Gray spots of oat are caused by deficiency of A Cu B Zn C Mn D Fe Which one of the following is not an essential element for plants? A Iron B Zinc C Potassium D Iodine Question 3 A sulphur containing amino acid is A Serine B Asparagine C Methionine D Proline Question 12 Bidirectional translocation of minerals take place in A Xylem B Phloem C Parenchyma D Cambium Question 13 Boron in green plants assists in A Activation of enzymes B Acting as enzyme cofactor C Photosynthesis D Sugar transport Question 14 Brown heart disease is due to deficiency of A Boron B Iron C Molybdenum D Phosphorus Question 15 Carbon become available to crop plants in the form of A Amino acids B Carbonates C Carbon dioxide D Element carbo
