NEET Biology Photosynthesis in Higher Plants Question Bank

done Self Evaluation Test - Photosynthesis in Higher Plants Total Questions - 81

• question_answer1)
  Bacteriochlorophyll differs from chlorophyll 'a' in having:
  A)
  One pyrrole nucleus with one hydrogen done clear
  B)
  One pyrrole nucleus with two hydrogen done clear
  C)
  One pyrrole nucleus with three hydrogen done clear
  D)
  One pyrrole nucleus with four hydrogen done clear
  View Solution play_arrow

• question_answer2)
  Which of the following pigment is yellow in colour?
  A)
  Chlorophyll 'a' done clear
  B)
  Chlorophyll 'b' done clear
  C)
  Carotene            done clear
  D)
  Xanthophyll done clear
  View Solution play_arrow

• question_answer3)
  \[{{C}_{4}}\]plants are adapted to:
  A)
  Hot and dry climate done clear
  B)
  Temperate climate done clear
  C)
  Cold and dry climate done clear
  D)
  Hot and humid climate done clear
  View Solution play_arrow

• question_answer4)
  Enzymes necessary for oxidative phosphorylation occur in:
  A)
  Chloroplast        done clear
  B)
         Ribosomes done clear
  C)
  Mitochondria  done clear
  D)
         ER done clear
  View Solution play_arrow

• question_answer5)
  Important requirement of phosphorylation is:
  A)
  Release of electrons done clear
  B)
  Release of protons done clear
  C)
  Transfer of electrons done clear
  D)
   Activation of oxygen done clear
  View Solution play_arrow

• question_answer6)
  Photosynthetically   active   radiation   is represented by the range of wavelength of:
  A)
  340-450 nm   done clear
  B)
         400-700 nm done clear
  C)
  500-600 nm    done clear
  D)
         400-950 nm done clear
  View Solution play_arrow

• question_answer7)
  Plants give off oxygen because:
  A)
  Oxygen results from the incorporation of carbon dioxide into sugars. done clear
  B)
  Plants do not respire since they photosynthesise. done clear
  C)
  Water is the initial proton donor, leaving oxygen as a photosynthetic by-product. done clear
  D)
  All of the above done clear
  View Solution play_arrow

• question_answer8)
  Study the figure showing graph of light intensity on the rate of photosynthesis.

  	Column-I		Column-II
  A.	Limiting factor in region(1)	I.	Some factor other than light intensity is becoming the limiting factor
  B.	(2) represents to	II.	Light is no longer
  C.	(3) represents to	III.	Light intensity
  D.	(4) represents to	IV.	Maximum rate of photosynthesis
  E.	(5) represents to	V.	Saturation point for light intensity

  A)
  A-I;      B-II;     C-III;    D-IV;     E-V done clear
  B)
  A-III;   B-I;       C-II;     D-V;      E-IV done clear
  C)
  A-IV;   B-II;      C-V;     D- III;    E ?I done clear
  D)
  A-V;    B-IV;     C-III;    D-II;      E-I done clear
  View Solution play_arrow

• question_answer9)
  Match column-I with column- II and select the correct answer using the codes given below.

  	Column-I		Column-II
  A.	Grana of chloroplast	I.	Krebs cycle
  B.	Stroma of chloroplast	II.	Light reaction
  C.	Cytoplasm	III.	Dark reaction
  D.	Mitochondrial matrix	IV.	Glycolysis

  A)
  A-IV;   B-III;   C-II;     D-I done clear
  B)
  A-I;     B-II;     C-IV;   D-I done clear
  C)
  A-IV;   B-I;      C-III;   D-II done clear
  D)
  A-II;    B-III;    C-IV;   D-I done clear
  View Solution play_arrow

• question_answer10)
  Consider the following statements. Choose the correct option.

  (i) The portion of spectrum between 500 nm and 800 nm is also referred to as photosynthetically active radiation (PAR).

  (ii) Magnesium, calcium and chloride ions play prominent roles in the photolysis of water.

  (iii) In cyclic photophosphorylation, oxygen is not released (as there is not photolysis of water) and NADPH is also not produced.

  A)
  (i) is true but (ii) and (iii) are false done clear
  B)
  (i) and (ii) are false but (iii) is true done clear
  C)
  (ii) is true but (i) and (iii) are false done clear
  D)
  (i) and (ii) are true but (iii) is false done clear
  View Solution play_arrow

• question_answer11)
  \[{{C}_{2}}-\]Cycle is also known as:
  A)
  Glycolate cycle done clear
  B)
         Calvin cycle done clear
  C)
  Kreb's cycle     done clear
  D)
         TCA - cycle done clear
  View Solution play_arrow

• question_answer12)
  How many molecules of glycine is required to release one \[C{{O}_{2}}\] molecule in photorespiration?
  A)
  One                  done clear
  B)
         Two done clear
  C)
  Three                done clear
  D)
  Four done clear
  View Solution play_arrow

• question_answer13)
  Which one of the following have high \[C{{O}_{2}}\] compensation point?
  A)
  \[{{C}_{2}}\] plants       done clear
  B)
         \[{{C}_{3}}\] plants done clear
  C)
  \[{{C}_{4}}\] plants                   done clear
  D)
  Alpine herbs done clear
  View Solution play_arrow

• question_answer14)
  Cyclic and non-cyclic electron flow is used in plants to:                 
  A)
  Meet the ATP demands of the Calvin Benson cycle. done clear
  B)
  Avoid producing excess\[NADPH+{{H}^{+}}\]. done clear
  C)
  Balance ATP and \[NADPH+{{K}^{+}}\] ratios in the chloroplast. done clear
  D)
  AIl of the above done clear
  View Solution play_arrow

• question_answer15)
  Organism that does not evolve \[{{O}_{2}}\] during photosynthesis is:
  A)
  Funaria              done clear
  B)
         Anabaena done clear
  C)
  Rhodospirillum done clear
  D)
         Nostoc done clear
  View Solution play_arrow

• question_answer16)
  Which of the following best represents the components that are necessary for photosynthesis to take place?
  A)
  Mitochondria, accessory pigments, visible light, water and carbon dioxide. done clear
  B)
  Chloroplasts, accessory pigments, visible light, water and carbon dioxide. done clear
  C)
  Mitochondria, chlorophyll, visible light, water and oxygen. done clear
  D)
  Chloroplasts, chlorophyll, visible light, water and carbon dioxide. done clear
  View Solution play_arrow

• question_answer17)
  What is/are the function(s) of accessory pigments?
  A)
  They enable a wider range of wavelength of incoming light to be utilised for photosynthesis. done clear
  B)
  They absorb light and transfer the energy to reaction centre. done clear
  C)
  They protect reaction centre from photo- oxidation. done clear
  D)
  All of the above done clear
  View Solution play_arrow

• question_answer18)
  Photosynthesis cannot continue for long if during light reaction, only cyclic photophosphorylation takes place. This is because:
  A)
  Photosystem I stops getting excited at a wavelength of light beyond 680 nm. done clear
  B)
  Only ATP is formed, NADPH + \[{{H}^{+}}\] is not formed. done clear
  C)
  There is no evolution of \[{{O}_{2.}}\] done clear
  D)
  There is unidirectional cyclic movement of the electrons. done clear
  View Solution play_arrow

• question_answer19)
  The diagram below shows the movement of substances into in and out of a chloroplast with labelling 1, 2, 3 & 4.   What do labels 1 to 4 represent?
  A)

  1	2	3	4
  \[C{{O}_{2}}\]	ATP	\[{{H}_{2}}O\]	Starch

    done clear
  B)

  \[C{{O}_{2}}\]

  \[{{H}_{2}}O\]

  Sugar

  \[{{O}_{2}}\]

    done clear
  C)

  \[{{H}_{2}}O\]

  \[{{O}_{2}}\]

  \[C{{O}_{2}}\]

  Sugar

    done clear
  D)

  Sugar

  \[{{H}_{2}}O\]

  ATP

  \[{{O}_{2}}\]

    done clear
  View Solution play_arrow

• question_answer20)
  The specific characteristic of \[{{C}_{4}}-\] plants is:
  A)
  Bulliform cells done clear
  B)
  Isobilateral leaf done clear
  C)
  Kranz anatomy done clear
  D)
  Parallel veins configuration done clear
  View Solution play_arrow

• question_answer21)
  Substrate for photorespiration is:
  A)
  Serine            done clear
  B)
         Glycolate done clear
  C)
  Indole acetic acid done clear
  D)
         Malic acid done clear
  View Solution play_arrow

• question_answer22)
  Which is the evidence to show that \[{{O}_{2}}\] released in photosynthesis comes from water?
  A)
  Isotopic \[{{O}_{2}}\] supplied as \[{{H}_{2}}O\] appears in the \[{{O}_{2}}\] released in photosynthesis. done clear
  B)
  Isolated chloroplast in water releases \[{{O}_{2}}\] if supplied potassium ferricyanide or some other reducing agent. done clear
  C)
  Photosynthetic bacteria use \[{{H}_{2}}S\] and \[C{{O}_{2}}\] to make carbohydrates. done clear
  D)
  All of the above done clear
  View Solution play_arrow

• question_answer23)
  The diagram below shows ATP synthesis through chemiosmosis. Which option shows the correct labelling of 1, 2, 3 and 4 in the diagram?
  A)
  1 - \[{{F}_{1}}\], 2 - Thylakoid membrane, 3 - Photosystem-I, 4 - Photosystem-II done clear
  B)
  1 -\[{{F}_{0}}\], 2 - Thylakoid membrane, 3 - Photosystem-I, 4 - Photosystem-II done clear
  C)
  1 - \[{{F}_{1}}\] 2 - Thylakoid membrane, 3 - Photosystem-II, 4 - Photosystem-I done clear
  D)
  1 - \[{{F}_{0}}\], 2 - Thylakoid membrane, 3 - Photosystem-II, 4 - Photosystem-I done clear
  View Solution play_arrow

• question_answer24)
  Which of the following statements are correct?

  (i) Photorespiration is favoured by high \[{{O}_{2}}\] low\[C{{O}_{2}}\], rise in temperature, high light intensity.

  (ii) Chloroplasts of cells of bundle sheath of

  \[{{C}_{4}}\] plants are granal, have PEP Co PEP Case but no RuBis Co.

  (iii) Chloroplasts of mesophyll cells of \[{{C}_{4}}\] plant are granal, have PEP Co PEP Case but no

  RuBis Co.

  (iv) Maize and Sorghum are \[{{C}_{4}}\] plants.

  A)
  All are correct except (ii) done clear
  B)
  (i) and (iv) done clear
  C)
  (ii) and (iii) done clear
  D)
  Only (iv) done clear
  View Solution play_arrow

• question_answer25)
  Tropical plants like sugarcane show high efficiency of \[C{{O}_{2}}\] fixation because of:
  A)
  Calvin cycle done clear
  B)
  Hatch - Slack cycle done clear
  C)
  Cyclic photophosphorylation done clear
  D)
  TCA Cycle done clear
  View Solution play_arrow

• question_answer26)
  Contribution of Ingen-Housz in elucidation of process of photosynthesis is that:
  A)
  Only green parts of plants exposed to light can convert foul air (\[C{{O}_{2}}\]) into pure air\[({{O}_{2}})\] done clear
  B)
  Green plants convert light energy into chemical energy. done clear
  C)
  Plants have the capacity to purify foul air. done clear
  D)
  Sunlight is the ultimate source of energy for plants and animals. done clear
  View Solution play_arrow

• question_answer27)
  The main site for dark reaction of photosynthesis is:
  A)
  Stroma              done clear
  B)
         Grana done clear
  C)
  Intergrana          done clear
  D)
         Mitochondria done clear
  View Solution play_arrow

• question_answer28)
  The scientist, who proved that bacteria use \[{{H}_{2}}S\] gas and \[C{{O}_{2}}\] to synthesise carbohydrate, is:
  A)
  Van Niel            done clear
  B)
         Ruben done clear
  C)
  Jean Senebier done clear
  D)
         Julius Robert Mayer done clear
  View Solution play_arrow

• question_answer29)
  Accumulation of food in assimilatory cells results in:
  A)
  Increase in the rate of photosynthesis done clear
  B)
  Decrease in the rate of photosynthesis done clear
  C)
  No effect done clear
  D)
  May increase or decrease. done clear
  View Solution play_arrow

• question_answer30)
  Maximum photosynthesis takes place in:
  A)
  Red light            done clear
  B)
         Blue light done clear
  C)
  Bright light         done clear
  D)
  Green light done clear
  View Solution play_arrow

• question_answer31)
  The form of pigment which inhibits germination is:
  A)
   \[{{P}_{760}}\]            done clear
  B)
         \[{{P}_{730}}\] done clear
  C)
  \[{{P}_{650}}\]                         done clear
  D)
  All of these done clear
  View Solution play_arrow

• question_answer32)
  Which fractions of the visible spectrum of solar radiations are primarily absorbed by carotenoids of the higher plants?
  A)
  Violet and blue   done clear
  B)
  Blue and green done clear
  C)
  Green and red    done clear
  D)
  Red and violet done clear
  View Solution play_arrow

• question_answer33)
  \[NADP\] is converted into \[NADP{{H}_{2}}\] in:
  A)
  Photosystem-I done clear
  B)
  Non-cyclic photophorylation done clear
  C)
  Calvin cycle done clear
  D)
  Photosystem ? II done clear
  View Solution play_arrow

• question_answer34)
  The experiment material used by Van Neil, to prove that \[{{O}_{2}}\] comes out from water was studied on:
  A)
  Chlorella pyrenoidosa done clear
  B)
  Cladophora done clear
  C)
  Purple & green sulphur bacteria done clear
  D)
  Blue green algae done clear
  View Solution play_arrow

• question_answer35)
  The graph below shows the result of   experiment in which isotopes of oxygen were used to distinguish between oxygen absorbed by plants and oxygen given out. A mixture of the oxygen istopes \[^{16}{{O}_{2}}\] and \[^{18}{{O}_{2}}\] was supplied to a suspension of the unicellular alga Chlorella which had previously been exposed to \[^{16}{{O}_{2}}\] only. During the following hour changes in the concentration of these gases in the suspension were measured. The \[^{18}{{O}_{2}}\] concentration fell in light because it was:                    
  A)
  Undergoing radioactive decay to from \[^{16}{{O}_{2}}\] done clear
  B)
  Absorbed in respiration but was not being produced in photosynthesis. done clear
  C)
  Absorbed in respiration slower than it was being produced in photosynthesis. done clear
  D)
  Absorbed as C\[^{18}{{O}_{2}}\] in photosynthesis. done clear
  View Solution play_arrow

• question_answer36)
  The type of \[C{{O}_{2}}\] fixation seen in many succulent plant species is:
  A)
  \[{{C}_{2}}-\]pathway      done clear
  B)
  \[{{C}_{3}}-\]pathway done clear
  C)
  \[{{C}_{4}}-\]pathway    done clear
  D)
  CAM-pathway. done clear
  View Solution play_arrow

• question_answer37)
  CAM plants differ from \[{{C}_{4}}\] plants in that:
  A)
  Carbon dioxide is stored as malic acid. done clear
  B)
  Photosynthesis can occur at night in these plants. done clear
  C)
  Their stomata close during periods that favour photorespiration. done clear
  D)
  They use PEP carboxylase to fix carbon dioxide. done clear
  View Solution play_arrow

• question_answer38)
  What will be the consequence(s) of Warburg effect on photosynthesis?    
  A)
  Low rate of process due to \[{{O}_{2}}\] supply done clear
  B)
  Low rate of process due to \[C{{O}_{2}}\] supply done clear
  C)
  Both [a] & [b] done clear
  D)
  None of the above done clear
  View Solution play_arrow

• question_answer39)
  Assume a thylakoid is somehow punctured so that the interior of the thylakoid is no longer separated from the stroma. This damage will have the most direct effect on which of the following processes?
  A)
  The splitting of water. done clear
  B)
  The absorption of light energy by chlorophyll. done clear
  C)
  The flow of electrons from photosystem II to photosystem I. done clear
  D)
  The synthesis of ATP. done clear
  View Solution play_arrow

• question_answer40)
  CAM-plants avoid photorespiration by:
  A)
  Performing Calvin cycle at night. done clear
  B)
  Fixing \[C{{O}_{2}}\] into organic acid in night and releasing \[C{{O}_{2}}\] in day. done clear
  C)
  Using PEP carboxylate to fix \[C{{O}_{2}}\] to RuDP. done clear
  D)
  Keeping the stomata closed during the day. done clear
  View Solution play_arrow

• question_answer41)
  Stomata of CAM plants:
  A)
  Never open done clear
  B)
  Are always open done clear
  C)
  Open during the day and close at night done clear
  D)
  Open during the night and close during the Day done clear
  View Solution play_arrow

• question_answer42)
  Half leaf experiment proves that:
  A)
  Light is essential for photosynthesis. done clear
  B)
  \[C{{O}_{2}}\] is essential for photosynthesis. done clear
  C)
  \[{{O}_{2}}\] releases during photosynthesis. done clear
  D)
  Chlorophyll is essential for photosynthesis. done clear
  View Solution play_arrow

• question_answer43)
  Number of ATP molecules required for regeneration phase of RuBP during synthesis of 1 glucose molecule:
  A)
  6                                              done clear
  B)
  12 done clear
  C)
  18                     done clear
  D)
         30 done clear
  View Solution play_arrow

• question_answer44)
  Formation of ATP in photosynthesis an respiration is an oxidation process which utilises the energy from:
  A)
  Cytochromes      done clear
  B)
         Ferredoxin done clear
  C)
  Electrons                        done clear
  D)
  Carbon dioxide done clear
  View Solution play_arrow

• question_answer45)
  The rate of photosynthesis of a freshwater plant is measured using five spectral colours. Which sequence of colours would give an increasing photosynthetic response?  smallest\[\to \]largest response
  A)
  Blue   Green Yellow Orange Red done clear
  B)
  Green Yellow Orange Red     Blue done clear
  C)
  Red   Orange Yellow Green   Blue done clear
  D)
  Yellow Green Orange Blue    Red done clear
  View Solution play_arrow

• question_answer46)
  Which one of the following pigment is not present in the chloroplast?
  A)
  Carotene            done clear
  B)
         Xanthophyll done clear
  C)
  Chlorophyll 'b'  done clear
  D)
         Anthocyanin done clear
  View Solution play_arrow

• question_answer47)
  The wavelength of light absorbed by Pr form of phytochrome is:
  A)
  680 nm done clear
  B)
         720 nm done clear
  C)
  620 nm             done clear
  D)
         640 nm done clear
  View Solution play_arrow

• question_answer48)
  To form one molecule of glyceraldehyde phosphate in Calvin cycle:
  A)
  9 ATP and 36 NADPH are required done clear
  B)
  6 ATP and 6 NADPH are required done clear
  C)
  3 ATP and 3 NADPH are required done clear
  D)
  9 ATP and 6 NADPH are required done clear
  View Solution play_arrow

• question_answer49)
  Given below is the pathway of light reaction.  Identify the given blanks indicated by 1, 2, 3 and 4.  
  A)

  1	2	3	4
  P700	\[{{H}^{+}}\]acceptor	P680	\[NAD{{P}^{+}}\]

    done clear
  B)

  Photosystem I

  \[{{e}^{\_}}\]acceptor

  Photosystem II

  \[NADP{{H}_{2}}^{+}ATP\]

    done clear
  C)

  Photosystem II

  \[{{H}^{+}}\] acceptor

  P700

  NADPH

    done clear
  D)

  Photosystem II

  \[{{e}^{+}}\]acceptor

  Photosystem I

  \[NADP{{H}^{+}}{{H}^{+}}\]

    done clear
  View Solution play_arrow

• question_answer50)
  Two groups of isolated thylakoids are placed in an acidic bathing solution so that \[{{H}^{+}}\] diffuse into the thylakoids. They are then transferred to a basic bathing solution, and one group is placed in the light, while the other group is kept in the dark. Select the choice given below that describes what you expect each group of thylakoids to produce.
  A)

  In Light	In Dark
  ATP only	Nothing

    done clear
  B)

  ATP, \[{{O}_{2}}\]

  ATP only

    done clear
  C)

  ATP,\[{{O}_{2}}\]Glucose

  ATP, \[{{O}_{2}}\]

    done clear
  D)

  ATP, \[{{O}_{2}}\]

  \[{{O}_{2}}\]

    done clear
  View Solution play_arrow

• question_answer51)
  Final product of HSK cycle is formed in:
  A)
  Mesophyll cells   done clear
  B)
  Bundle sheath cells done clear
  C)
  Epidermal cells   done clear
  D)
  Guard cells done clear
  View Solution play_arrow

• question_answer52)
  The first step in photosynthesis is:
  A)
  Joining of three carbon atoms to form glucose. done clear
  B)
  Formation of ATP. done clear
  C)
  Ionisation of water. done clear
  D)
  Excitement of an electron of chlorophyll by a photon of light. done clear
  View Solution play_arrow

• question_answer53)
  During non-cyclic photophosphorylation, in which of the following, \[4{{e}^{-}}\] produced through photolysis will enter?       
  A)
  PQ        done clear
  B)
         PS-I done clear
  C)
  PS-II                             done clear
  D)
  PC done clear
  View Solution play_arrow

• question_answer54)
  NADPH is generated through:
  A)
  Photosystem-I   done clear
  B)
         Photosystem-II done clear
  C)
  Anerobic respiration         done clear
  D)
  Glycolysis done clear
  View Solution play_arrow

• question_answer55)
  The first acceptor of electrons from an excited chlorophyll molecule of photosystem II is:
  A)
  Quinone            done clear
  B)
         Cytochrome done clear
  C)
  Iron-sulphur protein         done clear
  D)
  Ferredoxin done clear
  View Solution play_arrow

• question_answer56)
  Dichlorophenyl dimethyl urea (DCMU):
  A)
  Inhibits PS-I         done clear
  B)
        Inhibits PS-II        done clear
  C)
     Destroy chloroplast done clear
  D)
  Inhibits oxidative phosphorylation done clear
  View Solution play_arrow

• question_answer57)
  Which of the following statements concerning the Calvin-Benson cycle are incorrect?
  A)
  Light energy is not required for the cycle to proceed. done clear
  B)
  Carbon dioxide is assimilated into sugars. done clear
  C)
  Ribulose 1, 5-bisphosphate (RuBP) is regenerated. done clear
  D)
  None of the above done clear
  View Solution play_arrow

• question_answer58)
  The graph below refers to an experiment involving species of alga. The relative concentrations of GP and RuBP present in the cells were monitored when the plants were in light and then in darkness             Which of the following conclusions cannot be drawn from these results?
  A)
  In darkness the relative concentration of GP increases. done clear
  B)
  During the experiment RuBP may be converted into GP. done clear
  C)
  The relative concentration of RuBP           decreases on removal of \[C{{O}_{2}}\] done clear
  D)
  In light a steady state exists between RuBP and GP. done clear
  View Solution play_arrow

• question_answer59)
  Consider the following statements regarding photosynthesis. Choose the correct option.

  (i) ATP formation during photosynthesis is termed as photophosphorylation.

  (ii) Kranz anatomy pertains to leaf.

  (iii) Reduction of NADP to NADPH occurs during Calvin cycle.

  (iv) In a chlorophyll molecule magnesium is present in phytol tail.

  A)
  (i) and (ii)        done clear
  B)
         (iii) and (iv) done clear
  C)
  (i) and (iii)        done clear
  D)
         (i) and (iv) done clear
  View Solution play_arrow

• question_answer60)
  The loss of water in \[{{C}_{4}}\] plants compared to \[{{C}_{3}}\] plants for the same amount of \[C{{O}_{2}}\] fixed is:
  A)
  Half      done clear
  B)
                     One-third done clear
  C)
  One-fourth                     done clear
  D)
  Double done clear
  View Solution play_arrow

• question_answer61)
  Which of the following is likely to be the first substance that a green plant makes in photosynthesis?
  A)
  A simple sugar done clear
  B)
         Starch done clear
  C)
  Fats                              done clear
  D)
  Proteins done clear
  View Solution play_arrow

• question_answer62)
  Assimilatory power refers to:
  A)
  Generation of ATP and \[NADP{{H}_{2}}\] done clear
  B)
  Reduction of \[C{{O}_{2}}\] done clear
  C)
  Splitting of water done clear
  D)
  Disintegration of plastids done clear
  View Solution play_arrow

• question_answer63)
  Which of the following   is used as an experimental material for making rapid advances in tracing path of carbon in Calvin cycle & other photosynthetic research?
  A)
  Chlorella and Scenedesmus done clear
  B)
  Chlamydomonas and Chlorella done clear
  C)
  Hydrilla done clear
  D)
  Spinach done clear
  View Solution play_arrow

• question_answer64)
  Of the total incident solar radiation the proportion of PAR is:         
  A)
  About 70%        done clear
  B)
         About 60% done clear
  C)
  Less than 50%    done clear
  D)
         More than 80% done clear
  View Solution play_arrow

• question_answer65)
  Cyclic photophosphorylation results in the formation of:
  A)
  ATP and NADPH done clear
  B)
  ATP, NADPH and \[{{O}_{2}}\] done clear
  C)
  ATP done clear
  D)
  NADPH done clear
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• question_answer66)
  Pigment acting as a reaction centre during photosynthesis is:
  A)
  Carotene            done clear
  B)
         Phytochrome done clear
  C)
  \[{{P}_{700}}\]             done clear
  D)
         Cytochrome done clear
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• question_answer67)
  The diagram below shows the Calvin cycle. Identify 1, 2 and 3
  A)

  1	2	3
  ATP	3PGA	RuBP

    done clear
  B)

  3PGA

  ATP

  Sugar

    done clear
  C)

  RuBP

  3-PGA

  ATP

    done clear
  D)

  Sugar

  RuBP

  NADPH

    done clear
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• question_answer68)
  Oxygenic photosynthesis occurs in:
  A)
  Oscillatoria                     done clear
  B)
  Rhodospirillum done clear
  C)
  Chlorobium        done clear
  D)
         Chromatium done clear
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• question_answer69)
  PGA as the first \[C{{O}_{2}}\] fixation product was discovered in photosynthesis of:
  A)
  Bryophyte          done clear
  B)
         Gymnosperm done clear
  C)
  Angiosperm     done clear
  D)
         Alga done clear
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• question_answer70)
   'Z-scheme' show the transfer of electrons involving:
  A)
  Bundle sheath cell           done clear
  B)
  PSI done clear
  C)
  PSII                  done clear
  D)
         Both [b] and [c] done clear
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• question_answer71)
  In blue-green algae photosynthesis takes place in:                     
  A)
  Chloroplasts       done clear
  B)
         Chromatophore done clear
  C)
  Heterocysts     done clear
  D)
         Carotene done clear
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• question_answer72)
  Which of the following element is a component of ferredoxin?
  A)
  Copper  done clear
  B)
         Manganese done clear
  C)
  Zinc                  done clear
  D)
         Iron done clear
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• question_answer73)
  The family in which many plants are \[{{C}_{4}}\] type:
  A)
  Malvaceae         done clear
  B)
         Solanaceae. done clear
  C)
  Cruciferae      done clear
  D)
         Graminae done clear
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• question_answer74)
  As compared to a \[{{C}_{3}}\] plant, how many additional molecules of ATP are needed for net production of one molecule of hexose sugar by \[{{C}_{4}}\] plants?
  A)
  Two      done clear
  B)
                     Six done clear
  C)
  Twelve              done clear
  D)
         Zero done clear
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• question_answer75)
  Study the pathway given below. Which of the following option is correct?
  A)

  1	2	3
  \[{{C}_{3}}\,acid\]	Reduction	\[{{C}_{4}}\,acid\]

    done clear
  B)

  Fixation

  \[{{C}_{4}}\,acid\]

  Regeneration

    done clear
  C)

  \[{{C}_{4}}\,acid\]

  Decarboxylation

  \[{{C}_{3}}\,acid\]

    done clear
  D)

  Carboxylation

  \[{{C}_{3}}\,acid\]

  Reduction

    done clear
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• question_answer76)
  Maximum \[C{{O}_{2}}\] fixation is done by:
  A)
  Green plants                   done clear
  B)
  Phytoplanktons done clear
  C)
  Zooplanktons                  done clear
  D)
  Bacteria done clear
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• question_answer77)
  Which pigment system is inactivated in red
  A)
  PS-I and PS-II   done clear
  B)
  PS-I done clear
  C)
  PS-II                 done clear
  D)
         None of these done clear
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• question_answer78)
  Which of the following elements are essential for the photolysis of water?
  A)
  Ca and Cl          done clear
  B)
         Mn and Cl done clear
  C)
  Zn and I         done clear
  D)
         Cu and Fe done clear
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• question_answer79)
  In the leaves of \[{{C}_{4}}\] plants, malic acid formation during \[C{{O}_{2}}\] fixation occurs in the cells of:
  A)
  Epidermis           done clear
  B)
         Mesophyll done clear
  C)
  Bundle Sheath   done clear
  D)
         Phloem done clear
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• question_answer80)
  Algae and other submerged plants bounce in water during day time and sink at night, because:                   
  A)
  They come upto enjoy some time. done clear
  B)
  They lose weight at night. done clear
  C)
  They become buoyant due to accumulation of \[{{O}_{2}}\] as a result of photosynthesis. done clear
  D)
  They become light due to food material accumulation. done clear
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• question_answer81)
  Energy transfer in photosystem occurs as:
  A)
  Phycoerythrin \[\to \] Phycocyanin \[\to \]Carotenoid \[\to \] Chlorophyll a done clear
  B)
  Chlorophyll b \[\to \] Carotenoid \[\to \]Phycoerythrin \[\to \] Chlorophyll a done clear
  C)
  Phycocyanin \[\to \] Phycoerythrin \[\to \]Carotenoid \[\to \] Chlorophyll a done clear
  D)
  Chlorophyll b \[\to \] Carotenoid \[\to \]Phycocyanin \[\to \] Chlorophyll a done clear
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