Nội dung text 12. MINERAL NUTRITION.pdf
PAPER 1 (1.) In which of the following, all three are macronutrients? [NEET-I 2016, Page: 196] (1) Iron, copper, molybdenum (2) Molybdenum, magnesium, manganese (3) Nitrogen, calcium, phosphorus (4) Boron, zinc, manganese (2.) Which is essential for the growth of root tip?[NEET-II 2016, Pages: 197, 198] (1) Zn (2) Fe (3) Ca (4) Mn (3.) The plant ash indicates[Page: 195] (1) organic matter of plants (2) mineral salts absorbed by plants (3) both mineral salts and organic matter (4) silica absorbed by plants (4.) Minerals are absorbed by plants in[Pages: 197, 198] (1) colloidal form (2) ionic form (3) precipitated form (4) None of these (5.) Study the following statements and choose the one which explains the term critical concentration of an essential element?[Exemplar, Page: 198] (1) Essential element concentration below which plant growth is retarded. (2) Essential element concentration below which plant growth becomes enhanced. (3) Essential element concentration below which plant remains in the vegetative phase. (4) None of these. (6.) Purification of water and nutrient salts is so important in studies involving mineral nutrition using hydroponics[NCERT, Page: 195] (1) because water becomes dirty (2) to remove toxic substances from the culture medium (3) because it gets depleted of oxygen (4) none of these (7.) The technique of Hydroponics can be used to know[Page: 195] (I) The essentiality of mineral elements for plant growth (II) Toxicity of minerals to plant when is present in excess. (III) The essential pole of element in the metabolism of plant. (IV) The symptoms produced due to deficiencies. Which of the statements given above are correct? (1) I and II (2) II and III (3) III and IV (4) I, II, III and IV (8.) Plants can be grown in[Exemplar, Pages: 197, 198] (1) soil with essential nutrients (2) water with essential nutrients
(3) either water or soil with essential nutrients (4) water or soil without essential nutrients (9.) Which one of the following is not an essential mineral element for plants, while the remaining three are?[CBSE AIPMT-2011, Page: 197] (1) Iron (2) Manganese (3) Cadmium (4) Phosphorus (10.) Which one of the following roles is not characteristic of an essential element? [Page: 197] (1) Being a component of biomolecules (2) All are taken up by plants from the soil only (3) Being a structural component of energy related chemical compounds (4) Activation or inhibition of enzymes (11.) Non-essential mineral nutrients (elements) are required by[Page: 197] (1) all plants to perform their metabolic activities (2) certain plants, but not all, to perform their metabolic activities (3) all plants to complete their life cycle (4) Both (a) and (c) (12.) An essential element is that which [Page: 195] (1) improves health of a plant (2) indispensable for growth of plant (3) is found in plant ash (4) is available in the soil (13.) Which of the following is correct?[Pages: 194, 195] Hydroponics helps to know (I) The importance of minerals (II) The toxicity level of minerals (III) The role of minerals in metabolism (IV) Symptoms of mineral deficiency (1) I and II (2) II and III (3) III and IV (4) All of these (14.) Micronutrients are essential and are present in plant tissues in concentration less than ________________ of dry matter [Page: 195] (1) 100 mg/kg (2) 10 mg/kg (3) 1000 mg/kg (4) 0.10 mg/kg (15.) ‘X’ is essential micronutrient required in leaves and roots. Major function of ‘X’ is to perform metabolism of urea and uric acid and its deficiency causes leaf tip necrosis. It is[Page: 199] (1) sulphur (2) magnesium (3) zinc (4) nickel (16.) The function of manganese (Mn) in green plants is[Page: 198] (1) photolysis of water (2) Calvin cycle (3) nitrogen fixation (4) water absorption
(17.) Boron is essential nutrient for plants for the[Page: 198] (1) growth of pollen tub (2) formation of root nodules (3) meristematic activity (4) All of these (18.) The minerals involved in water splitting reaction during photosynthesis are[Page: 198] (1) magnesium and chlorine (2) potassium and manganese (3) manganese and chlorine (4) molybdenum and manganese (e) copper and chlorine (19.) Which of the following micronutrient helps in nitrogen fixation?[Page: 198] (1) Mo (2) Ca (3) Bo (4) Na (20.) Identify the correctly matched pairs:[Page: 194] (1) Abscission – late flowering process (2) Necrosis – loss of internal cork (3) Aeroponics – a soil-less culture of plants (4) Chlorosis – tissue death (21.) Which of the following minerals activate the enzymes involved inrespiration?[Pages: 197, 198] (1) Nitrogen and phosphorous (2) Magnesium and manganese (3) Potassium and calcium (4) Sulphur and iron (22.) On the basis of symptoms of chlorosis in leaves, a student informed that it was due to deficiency of nitrogen. This can be concluded only when we ask that yellowing of leaves appeared first in[Page: 199] (1) old leaves (2) young leaves (3) young leaves followed by mature leaves (4) matured leaves followed by young leaves (23.) Deficiency symptoms of nitrogen and potassium are visible first in [CBSE AIPMT- 2014, Page: 197] (1) senescent leaves (2) young leaves (3) roots (4) buds (24.) Gray spots of oat are caused by the deficiency of[Page: 199] (1) manganese (2) iron (3) copper (4) zinc
(25.) Read the statements and choose the option for correct statements.[HOTS, Page: 197] (I) Sulphur element is required as one the building blocks of the body. (II) Sulphur is important for ring structure of chlorophyll. (III) Sulphur is responsible for smell in onion. Options (1) Only I (2) I and II (3) III and IV (4) Only IV (26.) Read the following statements about the function of some nutrient carefully and choose the right option.[Pages: 196–198] (I) During cell division, it is used for cell wall (II) Also needed during the formation of mitotic spindle (III) Activates certain enzymes (IV) Plays an important role in regulating metabolic activities Options (1) I and II are the functions of molybdenum while III and IV are the functions of calcium. (2) All are the functions of calcium. (3) I and II are functions of calcium while III and IV are the functions of molybdenum. (4) All are functions of molybdenum. (27.) Read the functions given below and identify the correct nutrientfunction.[HOTS Pages: 197, 198] (I) Helps in cell wall synthesis (II) Forms mitotic spindle (III) Important role in regulating metabolic activities (IV) Involved in enzyme activation (1) All are functions of molybdenum. (2) I and II are functions of calcium and III and IV are functions of molybdenum. (3) All are functions of calcium. (4) I and II are functions of molybdenum and III and IV are functions of calcium. (28.) Match the following.[HOTS, Pages: 197, 198] Column-I Column-II (A) Calcium (1) Chlorotic veins (B) Potassium (2) Delays seed germination (C) Zinc (3) Leaf meiosis (D) Iron (4) Scorched leaf tips (E) Phosphorous (5) Malformed leaves Codes A B C D E (1) 3 1 5 2 4 (2) 1 4 5 3 2 (3) 3 4 5 1 2 (4) 2 3 4 1 5 (29.) Match the element with its associated functions/ roles and choose the correct option among the following.[NCERT Exemplar, Pages: 197, 198] Column-I Column-II