InterviewSolution
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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.
| 201. |
In photosynthesis directly light driven reaction are called (A)_____ while some reactions are depends on the products of light reaction (ATP and NADPH) conventinally called as (B)____ |
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Answer» Correct Answer - A-light reaction B-dark reactions |
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| 202. |
Assertion: Amaranthus and sugarcane are called as Hatch and Slack plants. Reason: One glucose is fonned by fixation of 6 `CO_(2)` in the plants.A. If both assertion and reason are true and the reason is a correct explanation of the assertionB. If both assertion and reason are true but reason is not a correct explanation of the assertion.C.D. If the assertion is true but reason is false. |
| Answer» Correct Answer - B | |
| 203. |
Which of the following cell organelles is associated with photorespriation ?A. MitochondriaB. PeroxisomeC. CholoroplastD. All of these |
| Answer» Correct Answer - D | |
| 204. |
Assertion : Cyclis pathway of photosythesis first apperead in some eubacterial species. Reason Oxygen started accumulating in the atmosphere after the nonj-cyclic pathway of photosynthesis evolved.A. If both assertion and reason are true and the reason is a correct explanation of the assertionB. If both assertion and reason are true but reason is not a correct explanation of the assertion.C.D. If the assertion is true but reason is false. |
| Answer» Correct Answer - B | |
| 205. |
Assertion : The stromal thylakoids are rich in both PS I and PS II Rason : The granal membranes are rich in ATP synthetase.A. If both assertion and reason are true and the reason is a correct explanation of the assertionB. If both assertion and reason are true but reason is not a correct explanation of the assertion.C.D. If the assertion is true but reason is false. |
| Answer» Correct Answer - D | |
| 206. |
Assertion : CAM plants lack structural compartmentation of leaf, as found in `C_(4)` plant Reason : Stomata of CAM plants are open during the day.A. If both assertion and reason are true and the reason is a correct explanation of the assertionB. If both assertion and reason are true but reason is not a correct explanation of the assertion.C.D. If the assertion is true but reason is false. |
| Answer» Correct Answer - C | |
| 207. |
Assertion. In light reaction of photosynthesis, light is required for the functioning of PS I and PS II and Production of NADPH and ATP. Reason. Dark reaction does not occur in light.A. If both assertion and reason are true and the reason is a correct explanation of the assertionB. If both assertion and reason are true but reason is not a correct explanation of the assertion.C.D. If the assertion is true but reason is false. |
| Answer» Correct Answer - C | |
| 208. |
The members of which of the following families shows krazn anatomy ?A. Compositae and AmaranthaceaseB. Chenopodiaceae and EuphorbiaceaeC. GramineaeD. All of these |
| Answer» Correct Answer - D | |
| 209. |
Assertion: `C_(4)` plants show tolerance to higher temperatures. Reason: `C_(4)` plants have both RuBisCO and PEPcase enzymesA. 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 - B `C_(4)` plants show tolerance to higher temperatures. `C_(4)` plants have both RuBisCO and PEPcase enzymes. |
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| 210. |
Assertion: The external factors that affected photosynthesis are number, size age and orientation of leaves, mesophyll cells and chloroplasts and the amount of chlorophyll. Reason: The internal factors that affect photosynthesis are availability of sunlight, temperature `CO_(2)` concentration and water. |
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Answer» Correct Answer - D Photosynthesis is under the influence of several factors both internal (plant) and external. The plant factors include the number, size age and orientation of leaves, mesophyll cells and chlorolasts, internal `CO_(2)` concentration and the amount of chlorophyll. the plant or internal factors are dependent on the genetic predisposition and the growth of the plant. the external factors inclue the availability of sunlight, temperature `CO_(2)` concentration and water. During phosotsynthesis, all these factors simultaneously affect its rate. |
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| 211. |
Stroma in the chloroplasts of higher plant cantainsA. Light - dependent reaction enzymesB. RibosomesC. ChlorophyllD. Light -independent reaction enzymes |
| Answer» Correct Answer - B | |
| 212. |
Which scientist showed that the green substances in plant ( chlorophyll) is located m special bodies ( chloroplast) within plant cells?A. Julius von SachsB. Cornelius van NielC. T. W. EngelmannD. Jan Ingenhousz |
| Answer» Correct Answer - A | |
| 213. |
Consider the following statements A. The chloroplast pigments are fat soluble. B. All the pigments of chloroplast are located in the thylakoid membranes. Which of the statements given above is/are correct?A. A onlyB. B onlyC. Both A and BD. Niether A nor B |
| Answer» Correct Answer - C | |
| 214. |
A chlorophyll molecule has the magnesium located in theA. phytol chamberB. centre of porphyrinC. corner of porphyrinD. isocyclic ring |
| Answer» Correct Answer - B | |
| 215. |
OEC is located in/onA. Outer surface of granal membraneB. Lumen of stoma lamellaeC. inner surface on thylakoid membraneD. Stroma |
| Answer» Correct Answer - C | |
| 216. |
Assertion: The stoma lamellae have both PS I and PS II. Reason: The grana lamellae lack PS II and well as NADP reductase enzyme. |
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Answer» Correct Answer - D Thylakoid membranes possess photosynthetic pigments and coupling factos. They occur in specific groups called photosystems (previously quantasomes). There are two photosystems. The grana lamellae have both PS I and PS II and the stroma lamellae lack PS II ad well as NADP reductase enzyme. |
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| 217. |
Select the correct match ` {:(" Column-I" , "Column-II"),( "a. OEC" , "(i) primary"e^(-)"acceptor"),(" b. NADP reductase" , "(ii) Photolysis of " H_(2)O), ( "c. Succinyl CoA" , "(iii) Outer surface of thylakoid membrane"),( " d. phaeophytin" , "(iv) Chlorophyll synthesis "):}`A. a(ii), b(iii) , c(iv), d(i)B. a(ii), b (iii),c (i) , d(iv)C. a(iii), b(i), c(ii) , d(iv)D. a(i), b(ii), c(iii) , d(iv) |
| Answer» Correct Answer - A | |
| 218. |
Identify the correct sequence of stages of Calven cycle.A. Reduction `rarr` Carboxylation `rarr` RegenerationB. Carboxylation `rarr` Regeneration `rarr` ReductionC. Carboxylation `rarr` Reduction `rarr` RegenerationD. Reduction `rarr` Regeneration `rarr` Carboxylation |
| Answer» Correct Answer - C | |
| 219. |
Choose the correct sequence of steps involved in `C_(4)` cycle.A. `CO_(2)` fixation ` to ` Regeneration ` to` TransportB. `CO_(2)` fixation ` to ` Recorboxylation `to ` DecarboxylationC. Transport ` to ` Regeneration ` to CO_(2` fixationD. `CO_(2)` fixation ` to ` Transport ` to ` Decarboxylation |
| Answer» Correct Answer - D | |
| 220. |
The wavelength of PAR (photosynthesis active radiation) isA. 40-70 nmB. 400-700 nmC. `400-700 Å`D. `40-70 Å` |
| Answer» Correct Answer - B | |
| 221. |
Choose the correct labeliling for given figure A. D-Saturation point, E - Maximum photosynthesisB. A -Achieved at high light intensityC. D-10% of total sunlight , E - Conmoensation pointD. A-light saturation at 10% of total sunlight |
| Answer» Correct Answer - A | |
| 222. |
Choose the correct statementA. Chlorophyll-a is soluble in petroleum ether and shows maximum absorption peak at 453 nm and 642 nmB. In chlorophyll-b , `CH_(3)` replaces -CHO at 3-C of chlorophyll-aC. For biosynthesis of chorophyll , raw materials required are succiny . Co-A and glycineD. |
| Answer» Correct Answer - D | |
| 223. |
The bulk fixation of carbon through photosynthesis takes place inA. Crop plantsB. Tropical rain forestsC. OceanD. Both (1) and (2) |
| Answer» Correct Answer - C | |
| 224. |
The bulk fixation of carbon through photosynthesis takes place inA. Crop plantsB. Tropical rain forestsC. OceanD. Both (1) & (2) |
| Answer» Correct Answer - C | |
| 225. |
Which one the following is energy in currency of the cell or the cell or the The common immediate sourece of energy in cellure activity isA. PhosphateB. ATPC. ADPD. AMP |
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Answer» Correct Answer - B ATP (adenosine triphosphate) is called energy currency of cells. ATP is energy rich compound where energy is present in terminal pyrophosphate bonds. |
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| 226. |
During photorespiration, the oxygen consuming reaction (s) occur inA. Gramma of chloroplasts and peroxisomesB. Stroma of chloroplastsC. Stroma of chlorplasts and mitochondriaD. Stroma of chloroplasts and peroxisomes |
| Answer» Correct Answer - A | |
| 227. |
In photosystem-I the first electron acceptor isA. FerredoxinB. CytochromeC. PlastocyaninD. An iron - sulphur protein |
| Answer» Correct Answer - D | |
| 228. |
Green bacteria containsA. Chlorobium chlorophyll-660B. Chlorobium chlorophyll-650C. Both (a) and (b)D. Chlorobium chlorophyll-700 |
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Answer» Correct Answer - C Green bacteria contain green pigment bacterioviridin (chlorobium chlorophyll), which absorbs red light, showing maximum absorption in the region of 650 - 660. |
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| 229. |
Assertion: Photosynthesis is a redox process. Reason : Oxidation of carbon dioxide and reduction of water takes place in photosynthesis.A. Both Assertion and Reason are true and Reason is the correct explanation of AsserationB. Both Assertion and Reason are true, but Reason is not the correct explanation of AssertionC. Assertion is true , but Reason is falseD. Assertion is false, but Reson is true |
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Answer» Correct Answer - C Photosynthesis is a redox process. It includes reduction of carbon dioxide to organic carbon compounds such as sugar and oxidation of water to oxygen. |
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| 230. |
In non-cyclic photophosphorylation, PS I is reduced byA. Electron from PS IIB. Electron from ferredoxinC. Hydrogen from waterD. Hydrogen from PS II |
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Answer» Correct Answer - A In non-cyclic photophosphorylation, PS I is reduced by Electron from PS II. |
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| 231. |
In photosystem I, the first electron acceptor isA. An Fe-S proteinB. FerredoxinC. CytochromeD. Plastocyanin |
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Answer» Correct Answer - A In photosystem-I, the first electron acceptor is an Fe-S protein. |
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| 232. |
Which one provides electrons for reduction reactions in photosynthesis?A. NADPHB. ChlorophyllC. CytochromeD. Water |
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Answer» Correct Answer - D Water provides electrons for reduction reactions in photosynthesis. |
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| 233. |
Photolysis of water requiresA. LightB. ChlorophyllC. Both A and BD. Electron transport |
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Answer» Correct Answer - C Photolysis of water requires light and chlorophyll. |
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| 234. |
Photolysis of water molecule yieldsA. 2 electrons and 4 protonsB. 4 electrons and 4 protonsC. 4 electrons and 2 protonsD. 2 electrons and 2 protons |
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Answer» Correct Answer - B Photolysis of water molecule yields 4 electrons and 4 protons. `2H_(2)O to 4H^(+) +4e^(-)+O_(2)` |
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| 235. |
Reducing agent for `CO_(2)` fixation in bacterial photosynthesis isA. `NADH_(2)`B. `NADPH_(2)`C. `FMNH_(2)`D. All of these |
| Answer» Correct Answer - A | |
| 236. |
Bacterial photosynthesis involves………A. Both PS-I and PS-IIB. Either PS-I or PS-IIC. PS-I onlyD. PS-II only |
| Answer» Correct Answer - C | |
| 237. |
Bacterial photosynthesis takes place inA. CytoplasmB. ChromoplastC. ChloroplastD. Oxysome |
| Answer» Correct Answer - A | |
| 238. |
Bacterial photosynthesis containsA. PS IB. PS IIC. Both PS I and PS IID. None of them |
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Answer» Correct Answer - A Bacterial photosynthesis contains PS I only. PS II is absent |
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| 239. |
In the leaves of `C_(4)`-plants, malic acid formation during `CO_(2)`-fixatino occurs inA. mesophyllB. bundle sheathC. phloemD. epidermis |
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Answer» Correct Answer - A The oxalic acid is reduced to malic acid in mesophyll cells, from chloroplast of mesophyll cells the malic acid is transferred to the chloroplast of bundle sheath cells where, it is decarboxylated to form `CO_(2)` and pyruvic acid. |
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| 240. |
Calvin used algae in his experiment for tracing out the path of carbon. The algae used wereA. Chlorella and ChlamydomonasB. Chlorella and ScenedesmusC. Chlorococcum and ChorellaD. Chlorococuum and Scenedesmus |
| Answer» Correct Answer - B | |
| 241. |
The total number of carbon atoms in phytol chain isA. 20B. 22C. 25D. 32 |
| Answer» Correct Answer - A | |
| 242. |
Phytol chain is present inA. CarotenoidsB. PhycocyaninC. ChlorophyllD. Haemoglobin |
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Answer» Correct Answer - C Phytol chain is present in chlorophyll. |
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| 243. |
When light strikes chlorophyll molecule , they lose electron, which are ultimately followed byA. splitting of waterB. breaking down ATPC. removing them from NADPHD. fixing carbon |
| Answer» Correct Answer - A | |
| 244. |
The size of chlorophyll molecule is |
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Answer» Correct Answer - C The size of chlorophyll molecule is Head `15 xx15Ã… 20 Ã…`. |
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| 245. |
Source of `CO_(2)` for photosynthesis during day in CAM plant isA. 3 DGAB. Malic acidC. OAAD. Pyruvate |
| Answer» Correct Answer - B | |
| 246. |
`CO_(2)` fixation in bundle sheath cells occur inA. `C_(4)` plantsB. `C_(3)` plantsC. CAMD. all of these |
| Answer» Correct Answer - A | |
| 247. |
Which of the following is essentially regenerated to complete the Calvin cycleA. PGAB. RUBPC. PEPD. OAA |
| Answer» Correct Answer - B | |
| 248. |
During photorespiration glycolic acid is oxidised to glyoxylic acid insideA. chloroplastB. peroxysomeC. motochondriaD. lysosome |
| Answer» Correct Answer - B | |
| 249. |
Which of the following statements is false about structure of chloroplast ?A. It is a double membrane bound organelleB. A stack of thylakoids in chloroplast form a lamellaC. Adjacent grana are connected by unstacked membranesD. The light absorbing pigments are present in the grana |
| Answer» Correct Answer - B | |
| 250. |
The site of light trapping in chloroplast isA. thylokoid membranesB. stromaC. plasma fluidD. stromal lamellae |
| Answer» Correct Answer - A | |