NEET BIOLOGY MCQ-MINERAL NUTRITION.

   1.The transfer of minerals from top soil to sub soil through soil water is called
     (a) Transpiration      (b) Conduction         

                (c) Percolation         (d) Leaching           

                (e) Mulching

   2.Function of Zinc is
(a) Synthesis of chlorophyll b
(b) Biosynthesis of Indole 3 - IAA
(c) Closing of Stomata
(d) Oxidation of carbohydrate
(e) Synthesis of Vitamin -C

   3.Fertility of  the soil in rice fields can be improved

      by
      (a) Chlamydomonas           (b) Sodium chloride
      (c) Anabaena                      (d) Rhizopus
      (e) Spirogyra

   4.Besides Fe, Cytochrome a and a3 carry an

      additional atom involved in ETC. The deficiency 

      of the same leads to -----

                (a) Necrosis                           

                (b) Die back of shoot
     (c) Brown heart disease

                (d) Premature leaf abscission
     (e) Inter vinal chlorosis

   5  The deficiency of a mineral, which is a component

       of thiamine, biotin & Co A in plants may show

       nitrogen deficiency symptom.  Name the mineral
     (a) Ca                      (b) N                       (c) B   

                (d) Mg2+                (e) S                       

   6. Plants requiring two metallic compounds for

       chlorophyll synthesis are
     (a) Fe and Ca                           (b) Fe and Mg
     (c) Cu and Ca                          (d) Ca and K
     (e) Na and K

   7.Which of the following elements is not required

       by plants for their normal healthy growth
     (a) Calcium                              (b) Magnesium         

                (c) Lead                                   (d) Iron                   

                (e) Sulphur

   8.     ------- is the mole fraction contribution of a

           substance to the total free energy of the system

           and is related only to the concentration of the

           system
     (a) Water potential  

                (b) Solute potential
     (c) Chemical potential             

                (d) Electrical potential
     (e) DPD

   9.     The passive absorption of minerals requires Ion channels which are protenaceous in nature. 

           The ion channels are
     (a) Transmembrane proteins    

                (b) Extrinsic proteins
     (c) Intrinsic proteins      

                (d) Both a & c are correct
     (e) All are correct

   10.   The process of exchange between adsorbed

         ions and ions in solution is known as
     (a) Ion exchange                     

                (b) Mass flow hypothesis
     (c) Solute exchange

                (d) All of these
     (e) All except (b) are correct

   11.   In Donnan equilibrium the product of [Ci+] [Ai-]

           will be equal to the product of
     (a) [Ci+] [Ci-]                         (b) [Co+] [Ai-]          

                (c) [Co+] [Ao-]                       (d) [Ci+] [Co-]       

  12.    One of the following is an active process ?
     (a) Ion exchange                     

                (b) Donnan equilibrium
     (c) Cytochrome-Pump theory
     (d) Carrier ion exchange concept
     (e) Both C & D are correct

   13.   The Salt absorption and Oxygen concentration are

                (a) inversely proportion          

                (b) directly proportional
     (c) not inter related 

                (d)  related below 00C
     (e) O2 increases salt concentration decreases

   14.   ------ proved that salts are translocated through the xylem vessels
     (a) Stout and Hoagland                          

                (b) Hoagland and Arnon
     (c) Guha and Maheswari        

                (d) Priestly and Hoagland
     (e) Knop’s and Pfeffer

   15.   Dead remains of animals and plants are decomposed through microbial activity to produce ammonia.  This event is known as :
     (a) Ammonification   

                (b) Nitrification
     (c) Denitrification        

                (d) Symbiotic nitrogen fixation
     (e) Nitrogen fixation

   16.   Nitrate is converted into nitrogen gas by a process called denitrificaiton with the help of an organism called :
     (a) Pseudomonas                    (b) Clostridium
     (c) Nitrosomonas                    (d) Nitrobacter
     (e) Azetobacter

   17.   Name two nitrogen fixing bacteria which produces root nodules
     (a) Azotobacter & Clostridium
     (b) Nitrosomonas & Clostridium
     (c) Frankia & Bacillus radicicola
     (d) Anabaena & Rhizobium

                (e) Azospirillum & Bacillus polymyxa

   18. Symbiotic nitrogen fixing bacteria in stem of Sesbania rostrata is:

                (a) Sinorhizobium                   (b) Photorhizobium

                (c) Bradyrhizobium                 (d) Azorhizobium

                (e) Xanthomonas

   19.   The enzyme becomes inactive if Leg Haemoglobin

         is removed from the Leguminous plant is ----
     (a) Nitrate reductase                (b) Transaminase
     (c) Nitrogenase                        (d) Amylase

                (e) Cytochrome oxidase

   20.   Select the following statement which is correct
(a) Leg haemoglobin is located in root nodules
(b) Leg haemoglobin combines with oxygen and

                protects nitrogenase
(c) Leg haemoglobin is an oxygen scavenger
(d) Leg haemoglobin is pink coloured and is

                product  of  Rhizobium and legume complex
(e) All are correct

ANSWER KEY 

1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20
C	B	C	B	E	B	C	C	A	A	C	E	B	A	A	A	C	D	C	E