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.
| 1001. |
RuBisCO is enzyme forA. Regeneration of RuBPB. Photolysis of waterC. `CO_(2)` fixationD. All of the above |
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Answer» Correct Answer - C RuBisCO is enzyme for `CO_(2)` fixation |
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| 1002. |
How much oxygen is formed from 264 g of `CO_(2)` and 216 g of `H_(2)O` ?A. 48 gB. 480 gC. 180 gD. 192 g |
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Answer» Correct Answer - D `6co_(2)+12H_(2)O to C_(6)H_(12)O_(2)+6O_(2)+6H_(2)O` `6xx44" "12xx18 " "180" "6xx32" "6xx18` `264" "216 " "192" "108` |
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| 1003. |
How many Calvin cycles are required to produce 5 molecules of glucose ?A. 60B. 15C. 30D. 90 |
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Answer» Correct Answer - C Glucose is a hexose sugar . Its one molecule contains six carbons. As Calvin cycle takes place in only one carbon (as `CO_2`) at a time , six turns of this cycle will be required to produce one molecule glucose (6C). Hence , for producing 5 molecules of glucose (30 molecules of carbon), 30 truns of Calvin cycle are required. |
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| 1004. |
What is common between photosynthesis and respirationA. CytochromeB. Light energyC. `H_(2)O`D. Temperature |
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Answer» Correct Answer - A Cytochromes - Hence proteins (iron containing proteins) serving as electron carries in respirationn photosynthesis and other oxidative reduction reactions. |
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| 1005. |
Which one is essential for the respiration as well as photosynthesis ?A. RuBisCOB. PlastocyaninC. UbiquinoneD. Cytochrome |
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Answer» Correct Answer - D Cytochromes are iron containing pigments . These act as electron transporter or electron acceptor in respiration and photosynthesis both . |
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| 1006. |
Source of `CO_(2)` for photosynthesis during day in CAM plant isA. 3-PGAB. Malic acidC. Oxaloacetic acidD. Pyruvate |
| Answer» Correct Answer - B | |
| 1007. |
Which of the following correctly depicts the biochemical reaction of r photosynthesis?A. `C_(6)H_(12)O_(6)+6O_(2)overset("Enzymes")rarr6CO_(2)+6H_(2)O+`energyB. `C_(6)H_(12)O_(6)+6O_(2)+6H_(2)Orarr6CO_(2)+12H_(2)O+` energyC. `6CO_(2)+6H_(2)Ounderset("Chlorophyll")overset("Sunlight")rarrC_(6)H_(12)O_(6)+6O_(2)`D. `6CO_(2)+12H_(2)Ounderset("Chlorophyll")overset("Sunlight")rarrC_(6)H_(12)O_(6)+6O_(2)+6H_(2)O` |
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Answer» Correct Answer - D |
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| 1008. |
Which pigment of the plant takes part in light reaction of potosynthesis or Which pigment is present universally in all green plantsA. XanthophyllB. Chl-aC. CaroteneD. Phycoxanthin |
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Answer» Correct Answer - B Chlorophyll-a is widely distributed in green plant and it is also called primary photosynthetic pigment and universal pigment. |
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| 1009. |
Which pigment of the plant takes part in light reaction of potosynthesis or Which pigment is present universally in all green plantsA. XanthophyllB. chl aC. CaroteneD. Phycoxanthin |
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Answer» Correct Answer - B CHl a takes part in light reaction of photosynthesis. |
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| 1010. |
When day light hours are increased, the rate of photosynthesisA. IncreasesB. DecreasesC. Remains unchangedD. None of the above |
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Answer» Correct Answer - C Rate of photosynthesis is independent of duration of light. |
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| 1011. |
In photosynthesis, light independent reactions take place atA. Stromal matrixB. Thylakoid lumenC. Photosystem-ID. Photosystem-II |
| Answer» Correct Answer - A | |
| 1012. |
Which pigment of the plant takes part in light reaction of potosynthesis or Which pigment is present universally in all green plantsA. Chlorophyll aB. Chlorophyll bC. Chlorophyll cD. Chlorophyll d |
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Answer» Correct Answer - A The pigment present universally in all green oxygenic plants is chlorophyll a. |
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| 1013. |
Consider the following statements (A) The portion of the spectrum between 500nm and 800 nm is also referred to as photosynthetically active radiation (PAR) (B) Magnesium, calcium and chloride ions play prominet roles in the photolysis of water (C) In cyclic photopphosphorylation, oxygen is not released (as there is no photolysis of water) and NADPH is also not producedA. A is true, but B and C are falseB. A and B are false, but C is trueC. B is true, but A and and C are falseD. A and B are true, but C is false |
| Answer» Correct Answer - B | |
| 1014. |
Rate of photosynthesis is independent ofA. Intensity of lightB. Duration of lightC. Quality of lightD. Temperature |
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Answer» Correct Answer - B Rate of photosynthesis is independent of duration oflight. |
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| 1015. |
In photosynthesis, light independent reactions take place atA. thylakoidlumenB. photosystem-IC. photosystem-IID. stromal matrix |
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Answer» Correct Answer - D The light-independent reactions (or dark reactions) take place in the stromal matrix of the chloroplasts. In light independent reactions, carbon dioxide is reduced to glucose (carbohydrate) by the hydrogen in NADPH by using the chemical energy stored in ATP. This reaction takes place in the presence of a substance called RuDP. |
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| 1016. |
Where does the primary photchemical reaction occur in choroplast or where does the light reactions of photosynthesis take place or Light reaction takes place inA. StromaB. Endoplasmic reticulumC. Quantasome or thylakoids (Grana)D. Inner membrane of chloroplast |
| Answer» Correct Answer - C | |
| 1017. |
In photosynthesis, light independent reactions take place atA. Thylakoid lumenB. Photosystem IC. Photosystem IID. Stromal matrix |
| Answer» Correct Answer - D | |
| 1018. |
In photosynthesis, light independent reactions take place atA. thylakoid lumenB. photosystem -IC. photosystem-IID. stromal matrix |
| Answer» Correct Answer - D | |
| 1019. |
During photosynthesis which of the following event does not take place ?A. Oxidation of `CO_2`B. Reduction of ` CO_2`C. Oxidation of `H_(2)O`D. Light absorption |
| Answer» Correct Answer - A | |
| 1020. |
During electron transport system ?A. reduction of NADP occursB. oxidation of ADP occursC. phosphorylation of NADP occursD. hydrogenation of FAD occrus |
| Answer» Correct Answer - A | |
| 1021. |
In which of the follwoing wavelength , photosystem -I is inactive ?A. 780 nmB. 680 nmC. 690 nmD. 550 nm |
| Answer» Correct Answer - A | |
| 1022. |
In photorespiration, what is the role of peroxisomeA. Help in oxidation of glycolateB. Help in oxygeneration of glycolateC. Help in synthesis of PGAD. Help in reduction of gly oxycolate |
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Answer» Correct Answer - C Photorespiration is a process of respiration which takes place in the presence of light and in chloroplasts only. In this process, first of all RuBP is oxygeneted in presence of `O_(2)`. Then, 1 molecule of a 2-C phosphoglycolate and 1 mol. Of a 3C PGA molecules is used in the calvin cycle. phosphoglycolate is dephosphorylated and glycolate is formed. glycolate diffuses out of chloroplast and enters the organelles called peroxisome and enters and organelle called peroxisome. here it is oxidized and becomes called peroxisome. here it is oxidized and becomes glyoxylate. glyoxylate ised in synthesis of glycine. |
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| 1023. |
In photorespiration, what is the role of peroxisomeA. Synthesis of PGAB. Reduction of gl yoxylateC. Oxidation of glycolateD. Oxygenati on of glycolate |
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Answer» Correct Answer - C In photorespiration peroxisome helps in oxidation of glycolate. |
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