Q.1
Identify the incorrectly matched pair about mineral and its function in plants:
  • a) Potassium - Opening and closing of stomata, Activation of enzymes.
  • b) Magnesium - Maintenance of ribosome structure, Structure of chlorophyll.
  • c) Boron - Pollen germination, Carbohydrate translocation.
  • d) Molybdenum - Water splitting in photosynthesis, Nitrogen metabolism.
Q.2
During nitrate assimilation, reduction of nitrite is performed by enzyme ........ This enzyme is ........ which contains copper and iron. Enzymes require reducing power ........ in illuminated cells. The product of nitrogen reduction is ........
  • a) Nitrate reductase, Molybdoflavoprotein, ATP, nitrite.
  • b) Nitrite reductase, Molybdoflavoprotein, FAD, nitrate.
  • c) Nitrate reductase, Metalloflavoprotein, NADH, ammonia.
  • d) Nitrite reductase, Metalloflavoprotein, NADH, ammonia.
Q.3
Consider the following: I. Facilitation of uptake and utilization of calcium by plants. II. Cell elongation and cell differentiation. III. Nitrogen metabolism. IV. Carbohydrate translocation. V. Water splitting reaction in photosynthesis. The functions of Boron in plants will include:
  • a) I, II, III, IV.
  • b) I, II, IV.
  • c) II, III, IV.
  • d) I, III, V.
Q.4
This steps are carried out by: 2NH3 + 3O2 → 2NO2- + 2H+ + 2H2O 2NO2- + O2 → 2NO3-
  • a) Nitrosomonas and Nitrobacter.
  • b) Pseudomonas and Thiobacillus.
  • c) Bacillus vulgaris and Bacillus ramosus.
  • d) Rhizobium and Frankia.
Q.5
In crucifers, whip tail disease is caused due to the deficiency of;
  • a) Manganese.
  • b) Magnesium.
  • c) Molybdenum.
  • d) Iron.
Q.6
The element which is involved in respiration, photosynthesis and union of ribosomal subunits and for chlorophyll synthesis:
  • a) Magnesium.
  • b) Manganese.
  • c) Iron.
  • d) Calcium.
Q.7
Select the incorrect match:
  • a) DNA polymerase – Mg2+.
  • b) Biotin – S.
  • c) PEPcase – Mn2+.
  • d) Cytochrome – Fe.
Q.8
Which one of the following is the wrong pair?
  • a) Zn – Alcohol dehydrogenase.
  • b) Mo – Nitrogenase.
  • c) Mn – Malic dehydrogenase.
  • d) Mg – Carboxylase.
Q.9
The element which is essential for the synthesis of tryptophan and plant growth hormone auxin is:
  • a) Zinc.
  • b) Manganese.
  • c) Molybdenum.
  • d) Magnesium.
Q.10
Which of the following mineral deficiency leads to both Chlorosis and necrosis?
  • a) Magnesium and Sulphur.
  • b) Iron and calcium.
  • c) Magnesium and Potassium.
  • d) Nitrogen and Zinc.
Q.11
The first stable product of biological nitrogen fixation is:
  • a) NH3.
  • b) N2O.
  • c) NO3-.
  • d) NO2.
Q.12
Reaction carried out by N2 metabolising microbes includes: 2NH3 + 3O2 → 2NO2- + 2H+ + 2H2O 2NO2- + O2 → 2NO3- Which of the following step about these reactions is incorrect?
  • a) Step I is carried out by Nitrosomonas and Nitrococcus.
  • b) Step II is carried out by Nitrobacter.
  • c) Both Steps I and II can be called nitrification.
  • d) Bacteria carrying out these steps are usually photoautotrophs.
Q.13
The element which is required in large amounts in comparison to other micronutrients:
  • a) Manganese.
  • b) Iron.
  • c) Copper.
  • d) Boron.
Q.14
Select the mismatched among the following: (i) Zn2+ - Activates DNA polymerase. (ii) K – Helps in opening and closing of stomata. (iii) P – Phosphorylation reaction. (iv) Mn – Helps to maintain ribosome structure. (v) N – Major component of proteins.
  • a) (i) only.
  • b) (iv) only.
  • c) (iii) and (iv) only.
  • d) (i) and (iv).
Q.15
Standards for mineral elements essentially was suggested by which scientist ?
  • a) Julious Vonsachs
  • b) Cornelius Von
  • c) Arnon and Stout
  • d) Jhon Ingen house
Q.16
State deficiency symptoms of Mo.
  • a) fruit yeild decreases
  • b) fall of fruit
  • c) N - deficiency appears.
  • d) death of root-apex and shoot-apex.
Q.17
Which element is required for photolysis of water during photosynthesis ?
  • a) Mo
  • b) Co
  • c) Cu
  • d) Cl
Q.18
Boron is absorbed by plants in the form of:
  • a) BO33-.
  • b) B4O72-.
  • c) BO34-.
  • d) Both A and B.
Q.19
During nodule formation, root hairs curl and produce a path towards cortex to carry the bacteria into cortex of root, known as:
  • a) Infection thread.
  • b) Epidermal hairs.
  • c) Nodule thread.
  • d) Root hair.
Q.20
Read the following statements: (i) Essential elements are both macronutrients and micronutrients. (ii) Minerals which maintain cation anion balance are K and Cl. (iii) Most of the chemical fertilizers contain N, P and K. (iv) The non – mineral elements are C, H and O. (v) The inorganic elements which are obtained from the soil are called mineral elements. How many of the above statements are correct.
  • a) Two.
  • b) Three.
  • c) Four.
  • d) Five.
Q.21
Which one of the following statement is true?
  • a) Amides contain more nitrogen than amino acids.
  • b) Amides contain more nitrogen than amino acids.
  • c) In soyabean, export of fixed nitrogen takes place as amides.
  • d) Amides contain less nitrogen than amino acids.
Q.22
Nitrifying bacteria are:
  • a) Chemoautotrophs.
  • b) Chemoheterotrophs.
  • c) Autotrophs.
  • d) Both A and B.
Q.23
Deficiency of which element kills terminal buds leaving a rosette effect on the plant ?
  • a) Mo
  • b) B
  • c) Cu
  • d) None
Q.24
Formation of FAD during N2 fixation occurs during which processes ?
  • a) growth and development
  • b) cell division and differentiation
  • c) photosynthesis and transpiration
  • d) Respiration and photosynthesis
Q.25
Which one is correct option of given Column I and Column II
Column I Column II
1 Copper P. Maintenance of ribosomal constitution.
2 Molybdenum Q. Carbohydrate transpor\\\
3 Zinc R. Nitrogen fixation
4 Magnesium S. Activity of enzymes in respiration
5 Boron T. Auxin synthesis
  • a) 1 - S, 2 - R, 3 - P, 4 - Q, 5 - T
  • b) 1 - S, 2 - R, 3 - T, 4 - P, 5 - Q
  • c) 1 - R, 2 - P, 3 - S, 4 - T, 5 - Q
  • d) 1 - T, 2 - S, 3 - Q, 4 - R, 5 - P
Q.26
Which is the correct sequence of enzymes for protein synthesis during N2 fixation ?
  • a) Nitrogenase → Transaminase → Glutamate dehydrogenase
  • b) Glutamate dehydrogenase → Transaminase → Nitrogenase
  • c) Hydrogenase → Glutamate dehydrogenase  Transaminase
  • d) Transaminase  Nitrogenase  Glutamate dehydrogenase
Q.27
Which statement is correct option from the given statements for plasma membrance ? (i) The inner region of plasma membrane is the region within the vacuole. (ii) For ionic absorption various ionic channels are located in the plasma membrance. (iii) In Donnan equillibrium, only positive ions occurs on the inner surface of plasma membrance
  • a) only ii
  • b) i and ii
  • c) ii and iii
  • d) i, ii and iii
Q.28
Which is the true statement for the vanadium element ?
  • a) deficiency do not regulate the size of stomata.
  • b) It is united in the formation of bipolar spindle during cell division.
  • c) plant do not get ammonia from the soil, due to its deficiency.
  • d) It plays role as structural component of vitamin Biotin and thiamin.
Q.29
Which method of hydroponics used for raising plants in solution filled containers such as a glass, jars, buckets, tubs and water tanks ?
  • a) static solution culture
  • b) nutrient film technique
  • c) Aeroponics
  • d) tissue culture
Q.30
Match the following:
Column I Column II
a. Alcoholic dehydrogenase Magnesium
b. Opening and closing of stomata Potassium
c. PEPcase and RuBisco Sulphur
d. Thiamine Zinc
  • a) a → 1 ; b → 4 ; c → 2 ; d → 3
  • b) a → 1 ; b → 2 ; c → 3 ; d → 4
  • c) a → 3 ; b → 2 ; c → 4 ; d → 1
  • d) a → 4 ; b → 2 ; c → 1 ; d → 3
0 h : 0 m : 1 s