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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 151. |
The assimilatory power produced during light released in theA. ATP , NADPH ` + H^(+)`B. `NAD^(+)`C. NADPD. ATP & NADH |
| Answer» Correct Answer - A | |
| 152. |
The protons formed by splitting of water are released in theA. Lumen of the thylakoidsB. Outer side of the memvbraneC. Both (1) & (2)D. Stroma of Chloroplast |
| Answer» Correct Answer - A | |
| 153. |
Study the pathway given below : in which of the following options words for all the three blanks , A, B and C are indicated ? |
| Answer» Correct Answer - C | |
| 154. |
Oxygen liberated during photosynthesis comes fromA. `CO_(2)`B. waterC. Photosynthetic enzymesD. carbonhydrates |
| Answer» Correct Answer - B | |
| 155. |
Oxygen liberated during photosynthesis comes fromA. WaterB. `Co_(2)`C. SoilD. Atmosphere |
| Answer» Correct Answer - A | |
| 156. |
Oxygen liberated during photosynthesis comes fromA. `CO_(2)`B. `H_(2)O`C. PhosphoglycericD. Chlorophyll |
| Answer» Correct Answer - B | |
| 157. |
What is the source of oxygen liberated in photosynthesis ?A. Carbon dioxideB. WaterC. SugarsD. Proteins |
| Answer» Correct Answer - B | |
| 158. |
Oxygen , which is liberated during photosynthesis , comes fromA. `CO_2`B. ` H_2O`C. chlorophyllD. phosphoglyceric acid |
| Answer» Correct Answer - B | |
| 159. |
`C_(4)` plants are more efficient in photosynthesis than `C_(3)` plants due toA. higher leaf areaB. presence of larger number of chloroplasts in the leaf cellsC. presence of thin cuticleD. lower rate of photorespiration |
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Answer» Correct Answer - B `C_(4)`-plants are more efficient in photosynthesis than `C_(3)`-plants but use more energy. They possess the larger number of chloroplasts in the leaf cells. In thhe leaves of `C_(4)`-plants, the vascular bundles are surrounded by bundle sheath cells which in turn are surrounded by mesophyll cells. Chloropplast in bundle sheath cells are larger and always contain grana, whereas chloroplasts in mesophyll cells are smaller. |
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| 160. |
Stroma in the chloroplasts of higher plant cantainsA. ChlorophyllB. Light-independent reaction enzymesC. Light-independent reaction enzymesD. Ribosomes |
| Answer» Correct Answer - C | |
| 161. |
What is the source of oxygen liberated in photosynthesis ?A. Carbon dioxideB. glucoseC. waterD. energy |
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Answer» Correct Answer - C Robert Hill (1939) proved by an experiment that the oxygen is evolved by splitting of water moleucules in sunlight not from carbon dioxide. |
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| 162. |
Stroma in the chloroplasts of higher plant cantainsA. light-independent reaction enzymesB. light-dependent reaction enzymesC. ribosomesD. chlorophyll |
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Answer» Correct Answer - A In higher plants, enzymes for light independent reactions (dark reaction) are present in the stroma of chloroplasts. Light dependent reaction occurs in grana of chloroplasts. Ribosomes are necessary for protein synthesis. Chlorophyll is green photosynthetic pigment found in chloroplasts. |
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| 163. |
Stroma in the chloroplasts of higher plant cantainsA. light independent reaction enzymesB. light dependent reaction enzymesC. ribosomesD. chlorophyll |
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Answer» Correct Answer - A In higher plants. Enzymes for light independent reactions (dark reactions ) are present in the stroma of chloroplasts. |
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| 164. |
Read the following four statement A,B,C and D and select the right opition having both correct statements. statements (a) Z scheme of light raction takes place in presence of PS I only . (B ) Omly PS I is functional in cyclic photosporylation (c ) Cyclic photophosphorylation results into synthesis of ATP and `NADPH_(2)` (D ) Stroma lamllae lack PSII as welll as NADPA. b and cB. a and bC. b and cD. c and d |
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Answer» Correct Answer - A Z-scheme of light reaction takes place in presence of both PS II and PS I. Cyclic photophosphorylation results into synthesis of ATP only. |
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| 165. |
Read the following four statement A,B,C and D and select the right opition having both correct statements. statements (a) Z scheme of light raction takes place in presence of PS I only . (B ) Omly PS I is functional in cyclic photosporylation (c ) Cyclic photophosphorylation results into synthesis of ATP and `NADPH_(2)` (D ) Stroma lamllae lack PSII as welll as NADPA. A and BB. B and CC. C and DD. B and D |
| Answer» Correct Answer - D | |
| 166. |
Read the following four statement A,B,C and D and select the right opition having both correct statements. statements (a) Z scheme of light raction takes place in presence of PS I only . (B ) Omly PS I is functional in cyclic photosporylation (c ) Cyclic photophosphorylation results into synthesis of ATP and `NADPH_(2)` (D ) Stroma lamllae lack PSII as welll as NADPA. (B ) and(D)B. (A ) and (B )C. (B) and(c )D. (C ) and (D) |
| Answer» Correct Answer - A | |
| 167. |
During Z scheme, electrons excited by absorption of light if PS I are transferred to the primary acceptors, and tehrefore must bereplaced. The replacements come directly formA. NADPB. ATPC. PS IID. Water. |
| Answer» Correct Answer - C | |
| 168. |
Identify A,B,C,D and E in the given flow chart showing Z-Scheme of light reaction. A. `{:(A,B,C,D,E),(P_(700),H^(+)"acceptor",e^(-)"acceptor",P_(680),NADP^(+)):}`B. `{:(A,B,C,D,E),("Photosystem I",e^(-)"acceptor",e^(-)"transport","photosystem II",NADPH):}`C. `{:(A,B,C,D,E),("Photosystem II",H^(+)"acceptor",e^(-)"acceptor",P_(700),NADPH):}`D. `{:(A,B,C,D,E),("Photosystem II",e^(-)"acceptor",e(-)"transport system","Photosystem I","NADPH):}` |
| Answer» Correct Answer - D | |
| 169. |
Given figure depicts the light harvesting comples (LHC) of photosystem I (PS I) Select the correct identification for A,B,C and DA. `{:(A,B,C,D),("Core molecuels","Antenna molecule",P_(680),"primary"):}`B. `{:(A,B,C,D),("Antenna molecuels","Core",P_(700),"Primary"):}`C. `{:(A,B,C,D),("Antenna moleculs","Core",P_(700),"Plastocyanin"):}`D. `{:(A,B,C,D),("Core molecules","Reaction centre",P_(680),"Plastocyanin"):}` |
| Answer» Correct Answer - B | |
| 170. |
Assertion: PS I and PS II are named in sequence of their function during the light reaction or photochemical phase. Reason: Each photosystem has one molecule of chlorophyll-a forming a light harvesting complex called antenna.A. If both assertion and reason are true and the reason is the correct explanation of the assertion.B. If both assertion and reason are true but reason is not the correct explanation of the assertion.C. If assertion is true but reason is false.D. If both assertion and reason are false. |
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Answer» Correct Answer - D .PS I and PS II are named in sequence of their discoverery. .Each photosystern has one molecule of chlorophyll a forming reaction centre. |
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| 171. |
Assertion: The whole scheme of transfer of electrons, starting from the PS II uphill to the acceptor, down the electron transport chain to PS I, excitation of electrons, transfer to another acceptor, and finally downhill to `NADP^(+)` causing it to be reduced to `NADPH^(+) H^(+)~ is called the Z scheme or cyclic photophosphorylation. Reason: Both ATP and NADH + `H^(+)` are synthesised by this kind of electron flow.A. If both assertion and reason are true and the reason 1s the correct explanation of the assertion.B. If both assertion and reason are true but reason is not the correct explanation of the assertion.C. If assertion is true but reason is false.D. If both assertion and reason are false. |
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Answer» Correct Answer - D The whole scheme of transfer of electrons, starting from the PS II uphill to the acceptor, down the electron transport chain to PS I, excitation of electrons, transfer to another acceptor, and finally downhill to NADP causing it to be reduced to `NADPH+H^(+)` is called the Z scheme or non-cyclic photophosphorylation. Both ATP and NADPH are synthesised by this kind of electron flow. |
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| 172. |
whole scheme of transfer of electrons , starting from the PS II, uphill to the acceptor, down the electron transport chain to PS I ,excitation of elecitations, transfer to another acceptor, and finally down hill to NADP+ causing it to be reducedd to `NADPH +H^(+)` is calledA. Oxidative phosphorylationB. Cycllic photophosphorylationC. PCR cycleD. Z-scheme |
| Answer» Correct Answer - D | |
| 173. |
Carotenes absorb___________ light and transmit_____________ and hence are orange in colourA. blue and green, orange and redB. Red and yellow, blue and greenC. blue and red, orange and yellowD. green and yellow, blue and red |
| Answer» Correct Answer - A | |
| 174. |
Carotenes protect plants fromA. PhotooxidationB. DesiccationC. PhotorespirationD. Photosynthesis |
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Answer» Correct Answer - A Carotenes protect plants from photo-oxidation |
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| 175. |
Photosynthesis in green algae and bacteria is, respectively,A. Oxygenic and anoxygenicB. Anoxygenic and oxygenicC. Oxygenic in bothD. Anoxygenic in both |
| Answer» Correct Answer - A | |
| 176. |
Carotenes and phycobilins are also known asA. respiratory pigmentsB. accessory pigmentsC. photosynthetic pigmentsD. necessary pigments |
| Answer» Correct Answer - B | |
| 177. |
The site of photosynthesis in blue green algae isA. ChromatophoresB. Mitochondria,C. ChloroplastD. Root hair |
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Answer» Correct Answer - A The bacteria pigments are however not contained in chloroplast but are present in structures called chromatophores. |
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| 178. |
Water splitting is concerned with photosystemA. PS-IB. PS-IIC. Both (a) and (b)D. None of these |
| Answer» Correct Answer - B | |
| 179. |
In blue -green algae , photosynthesis occurs inA. chromatophorsesB. ChloroplastC. photosynthetic lamellaeD. chromoplast |
| Answer» Correct Answer - C | |
| 180. |
Phycobilins found in blue green algae and red algae are/haveA. Soluble in hot waterB. Found in chromatophoresC. `Mg^(2+)` and tailD. Lipoidal in nature |
| Answer» Correct Answer - A | |
| 181. |
In blue-green algae , photosystem - II contains important pigment concerned with photolysis of water , it is aA. phoycocyaninB. cytochrome -cC. chlorophyll-bD. `beta`-carotene |
| Answer» Correct Answer - AA phycocyanin | |
| 182. |
Assertion : Besides chlorophyll a, blue - green and red algae show the presence of phycobiliproteins . Reason : Chlorophyll andycobiliproteins are integrated into thylakoids.A. If both A and R are true and R is the correct explanation of AB. If both A and R are true but R is not the correct explanation of AC. If A is true but R is falseD. If both A and R are false |
| Answer» Correct Answer - C | |
| 183. |
Which of the following photosynthesis bacteria have both PS-I and PS-II Or Which was first photosynthesis organismA. Purple sulphur bacteriaB. CynaobacteriaC. Purple non-sulphur bacteriaD. Green sulphur bacteria |
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Answer» Correct Answer - B Cyanobacteria posses both PS I and PS II |
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| 184. |
`PS` II contains a non-chlorophyllous pigment in blue-green algaeA. `beta`-caroteneB. ZeaxanthinC. PhycocyaninD. xanthophyll |
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Answer» Correct Answer - C PS II contains a non-chlorophyllous pigment in bluegreen algae is phycocyanin. |
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| 185. |
Water vapour comes out from the plant leaf through the stomatal opening. Through the same stomatal opening carbon dioxide diffuses into the plant during photosynthesis. Reason out the above statements using the following options.A. Both processes cannot happen simultaneously.B. Both processes can happen together because the diffusion coefficient of water of `CO_(2)` is different.C. The above processes happen only during night time.D. One process occurs durign day time, and the other at night. |
| Answer» Correct Answer - B | |
| 186. |
Choose the correct statement.A. Stroma lamella membrane lacks PS-II and PS-I.B. When PS-I is functional electrons flow in an non -cyclic wayC. ATPase are enzyme consists of `F_1` unitsD. NADP reductase is a part of PS- II |
| Answer» Correct Answer - C | |
| 187. |
Which of the following process is called reverse of glycolysis ?A. `CO_2` reductionB. RUBP carboxylationC. RUBP regenerationD. ATP synthesis |
| Answer» Correct Answer - A | |
| 188. |
Pick the odd one out from the following option.A. Tomato : LycopeneB. Autumn leaves : LuteinC. Green plants : ChlorophyllD. Red alage : Phycoerythrin |
| Answer» Correct Answer - D | |
| 189. |
The correct sequency of flow of electons in the light reaction isA. PSII, plastoquinone, cytochromes, PSI, ferredoxinB. PSI, plastoquinone, cytochromes, PSII, ferredoxinC. PSI, ferredoxin, PSIID. PSI, plastoquinone, cytochromes, PSII, ferredoxin |
| Answer» Correct Answer - a | |
| 190. |
During the process of photosynthesis the raw material used areA. GlucoseB. ChlorophyllC. StarchD. `CO_(2) and H_(2)O` |
| Answer» Correct Answer - D | |
| 191. |
Observe the given figure of Calvin cycle and ifnd the name of steps and number of ATP and NADPH utilised in them for one molecule of `CO_(2)` |
| Answer» Correct Answer - `{:("Steps","ATP and NADPH"),(A="carboxylation","Nil"),(B="Reduction","2ATP and 2NADPH"),(C="Regeneration","1ATP"):}` | |
| 192. |
How many ATP and NADPH molecuels are respectively required to mae one molecule of glucose through Calvin cycle?A. 3 and 2B. 9 and 6C. 18 and 12D. 12 and 18 |
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Answer» Correct Answer - C |
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| 193. |
How many ATP and NADPH molecuels are respectively required to mae one molecule of glucose through Calvin cycle?A. 2 ATP+ 1 `NADPH_(2)`B. 3 ATP + `2 NADPH_(2)`C. 2 ATP + 3 `NADPH_(2)`D. 3 ATP + `3NADPH_(2)` |
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Answer» Correct Answer - B For fixing one molecule of `CO_(2)` in Calvin cycle, `3ATP+2 NADPH_(2)` are required. |
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| 194. |
In Calvin cycle, to form one molecule of glucose how many number of ATP and NADPH molecules are utilized?A. 12ATP and 9NADPHB. 6ATP and 4NADPHC. 18ATP and 12NADPHD. 20ATP and 24NADPH |
| Answer» Correct Answer - C | |
| 195. |
During Calvin cycle the total number of `CO_(2)`, ATP and NADPH molecules uitlized abd glucose, ADP and NADP molecules generated isA. 31B. 38C. 61D. 67 |
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Answer» Correct Answer - A The net reaction of carbon dioxide (Calvin cycle) is `6RuBP+6CO_(2)+18ATP+12NADPHto` `6RuBP +C_2H_12O_6+18ADP +18Pi+12NADP^(+)` |
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| 196. |
The correct sequence of cell organelles during photorespiration isA. Chloroplast - mitochonle- peroxisomeB. Chloroplast - vacuole - peroxisomeC. Chloroplast - Golgbodies - mitochondriaD. Chloroplast - Rought endoplasmic reticulum- Dictyosomes |
| Answer» Correct Answer - A | |
| 197. |
The correct sequence of cell organelles during photorespiration isA. Chloroplast, Peroxisome, mitochondriaB. Chloroplast, vacuole, peroxisomeC. Chloroplast, Golgibodies, mitochondriaD. Chloroplast , Rough Endoplasmic reticulum, Dictyosomes |
| Answer» Correct Answer - A | |
| 198. |
The correct sequence of cell organelles during photorespiration isA. Chloroplast-Rough Endoplasmic reticulum-DictyosomesB. Chloroplast-mitochondria-peroxisomeC. Chloroplast-vacuole-peroxisomeD. Chloroplast-Golgibodies-Mitochondria |
| Answer» Correct Answer - B | |
| 199. |
A: For every `CO_(2)` molecule entering `C_(3)` j cycle , three molecules of ATP and two NADPH are required . R: Cyclic photophosphorylation takes place to meet the difference in number of ATP.A. If both Assertion % Reson ar true and the reason is the correct explanation of the asserition the mark (1)B. If both Assertion % Reason are true but the reason, is not the correct explanation of the assertion ,then mark (2)C. If Assetion is true statement but Reason is false , The mark (3)D. If both Assertion and Reason are false statements, the mark (4) |
| Answer» Correct Answer - B | |
| 200. |
how many molecules of ATP and NADPH are require in formation of two molecules of glucose ? How many calvin cycles are requiredA. 24 ATP , 36 NADPH, 12 Calvin cyclesB. 18 ATP, 12 NADPH , 6 Calvin cyclesC. 36 ATP, NADPH, 6 Calvin cyclesD. 36 ATP, 24 NADPH , 12 Calvin cycles |
| Answer» Correct Answer - D | |