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MINERAL NUTRITION in PLANTS Sanjeeb Kumar Das

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MINERAL NUTRITION in PLANTS Sanjeeb Kumar Das Test Your Knowledge MINERAL NUTRITION IN PLANTS Sanjeeb Kumar Das 1. Which one of the following is a macronutrient? 14. Brown heart disease is due to deficiency of a) Potassium b) Nitrogen a) Iron b) Boron c) Calcium d) Boron c) Potassium d) Molybdenum 2. The mineral constituent of cell wall is 15. Bidirectional translocation of minerals takes place a) Iron b) Zinc through c) Calcium d) Potassium a) Xylem b) Phloem c) Parenchyma d) Cambium 3. Which one is required for nitrogen fixation? a) Mo b) Zn 16. An essential element c) Mn d) Mg a) Occurs in plant ash b) Is absorbed by root c) Is irreplaceable and indispensable for plant 4. Roots can absorb minerals for the soil in growth a) Solid state b) Liquid state d) All the above c) Ionic state d) Gaseous state 17. The brown colour of leaves of cabbage is due to 5. Premature leaf fall is due to the deficiency of the deficiency of a) Phosphorous b) Nitrogen a) Boron b) Nitrogen c) Calcium d) Potassium c) Sulphur d) Calcium 6. Phosphorous is a structural element in 18. Plants require one of the following for formation a) Fat b) Starch of ATP c) Nucleotide d) Carbohydrate a) N & Ca b) N & P c) N & Cu d) K & Cu 7. The leaves become yellow due to the deficiency of a) Zinc & Boron b) Potassium & calcium 19. Cyanobacteria help farmers by c) Iron & Magnesium d) None of the above a) Reducing the alkalinity of the soil b) Increasing soil fertility of the soil 8. The core element of chlorophyll is c) Neutralizing alkalinity of the soil a) Mn b) Mg d) Waterlogging c) Zn d) Fe 20. Ion uptake is called active because 9. One of the following elements is not of much a) Ions are active b) Ions move freely importance to plants c) Energy is expended d)Ions move positively a) Calcium b) Zinc c) Copper d) Sodium 21. The movement of mineral ions into plant root cells as a result of diffusion is called 10. Which of the following is a trace element? a) Endocytosis b) Osmosis a) Zn b) Ca c) Passive absorption d) Active absorption c) P d) Mg 22. Metal present in Plastocyanin is 11. Essential element for photolysis of water a) Cu b) Fe a) Nitrogen b) Oxygen c) Zn d) Mo c) Chlorine d) Carbon 12. Zinc is essential for Answers: a) Stomatal closing b) Stomatal opening 1.(a ) 2.( c ) 3.( a ) 4. ( c ) 5. ( a ) 6.( c ) 7. ( c ) 8.( b ) c) Biosynthesis of IAA d) Oxidation of carbohydrate 9.( d ) 10.( a ) 11. ( c ) 12. ( c ) 13.( b ) 14. ( b ) 15.( b ) 16. (c ) 17. ( a ) 18. ( b ) 19. ( b ) 20.( c ) 21. ( c ) 22.( a ) 13. Both Nitrogen and Sulphur are required by plants for Contributed by Dr Sanjeeb Kumar Das, Department of Botany a) Chlorophyll synthesis b) Enzymes (DESM), Regional Institute of Education (NCERT), Unit-9, c) Cell wall d) Stomatal movement Acharya Vihar, Sachivalaya Marg, Bhubaneswar. E-mail: [email protected] 62 | Science Reporter | November 2019 CHEMISTRY NOBEL Niranjan Mohapatra 1. How many individuals have been awarded 10. Israeli crystallographer who is best known for her Chemistry Nobel as of 2018? pioneering work on the structure of the ribosome. a. 180 b. 108 She was the first Israeli woman to win the Nobel. c. 175 d. 185 a. Maria Goeppert Mayer b. Donna Strickland c. Ada Yonath d. None of the above 2. How many women have been awarded Chemistry Nobel till now? 11. In 2018, which American chemical engineer was a. 6 b. 5 awarded the Chemistry Nobel for pioneering the c. 4 d. 7 use of directed evolution to engineer enzymes? a. Frances Hamilton Arnold b. Kary B. Mullis 3. The first Nobel Prize in Chemistry was awarded in c. Rudolph A. Marcus d. Richard R. Ernst 1901 to a Dutch Chemist for his discovery of the laws of chemical dynamics and osmotic pressure in 12. Which Indian-born structural biologist shared solutions. Name the scientist. 2009 Chemistry Nobel with Thomas Steitz and a. Peter D. Mitchell b. John Warcup Cornforth Ada Yonath? He was elected as the president of c. Georg Wittig d. Jacobus Henricus Van’t Hoff Royal Society in 2015. a. C.V. Raman b. Subrahmanyan Chandrasekhar 4. She was the first woman to get Chemistry Nobel c. Venki Ramakrishnan d. None of these for the discovery of the elements radium and polonium by the isolation of radium. She was the 13. Swedish physicist and chemist who was considered only laureate who got the Nobel both in Physics as one of the founders of physical chemistry and best known for Acid-base theory won Nobel in (1903) & Chemistry (1911). 1903. a. Irene Curie b. Dorothy Hodgkin a. Elias James Corey b. Thomas Cech c. Marie Curie d. Ada Yonath c. Sidney Altman d. Svante Arrhenius 5. British biochemist who won the Nobel Prize in 14. Name the New Zealand physicist who is known Chemistry twice i.e. in 1958 & 1980. as the father of nuclear physics, was awarded a. Frederick Sanger b. William S. Knowles Chemistry Nobel in 1908 for his investigations c. Hideki Shirakawa d. Alan G. MacDiarmid into the disintegration of the elements, and the chemistry of radioactive substances. 6. Name the German scientist(s) whose Government a. Charles J. Pedersen b. Ernest Rutherford did not allow them to accept the Nobel Prize. c. Donald J. Cram d. Yuan T. Lee a. Richard Kuhn b. Adolf Butenandt c. Both (a) & (b) d. None of these 15. Swiss Chemist and first inorganic chemist who won the 1913 Nobel for proposing the octahedral 7. In which field of Chemistry most of the laureates configuration of transition metal complexes. (at least 25) have received the Nobel Prize? a. George A. Olah b. John C. Polanyi a. Physical Chemistry b. Inorganic Chemistry c. Alfred Werner d. George de Hevesy c. Organic Chemistry d. Analytical Chemistry 16. Which German chemist and radiochemistry 8. Which French scientist was awarded the Chemistry pioneer discovered nuclear fission for which he Nobel jointly with her husband for their discovery was awarded Nobel in 1944? He is regarded as the of artificial radioactivity? father of nuclear chemistry. a. Frances Arnold b. Ada Yonath a. Aaron Ciechanover b. Kurt Wüthrich c. Marie Curie d. Irene Joliot-Curie c. Peter Agre d. Otto Hahn 9. British chemist who developed protein Answer: crystallography and for which she was awarded 1) a 2) b 3) d 4) c 5) a 6) c 7) c Nobel in 1964. a. Robert F. Curl Jr. b. Dorothy Mary Hodgkin 8) d 9) b 10) c 11) a 12) c 13) d 14) b c. F. Sherwood Rowland d. Mario J. Molina 15) c 16) d Contributed by Mr Niranjan Mohapatra, At-Paikasahi, Po-Bhogada,Via-Baghamari, Dist. Khordha, Odisha-752061. Email: [email protected] November 2019 | Science Reporter | 63.
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