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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.
| 301. |
Find out the organic molecule which has RQ equal to unityA. ProteinB. FatC. CarbohydrateD. Malic acid |
| Answer» Correct Answer - C | |
| 302. |
The term protoplasmic respiration is used for the respiration ofA. Organic acidsB. FatsC. CarbohydratesD. Proteins |
| Answer» Correct Answer - D | |
| 303. |
Explain the term "Energy Currency". Which substance acts as energy currency in plants and animals. |
| Answer» The energy rich chemicals are called energy carriers. ATP (Adenosine triphosphate is the most important energy carrier in plants and animals and act as energy currency). | |
| 304. |
______ is a _____ that acts as the energy currency of the cell.A. DNA, nucleotideB. ATP, nucleotideC. GTP, nucleosideD. RNA, nucleotide |
| Answer» Correct Answer - B | |
| 305. |
What is the site of glycolysis ?A. NucleoplasmB. PeroxisomeC. GlyoxisomeD. Cytoplasm |
| Answer» Correct Answer - D | |
| 306. |
Name the site of gluycolysis in the cell |
| Answer» Correct Answer - Cytoplasm | |
| 307. |
How many ATP are directly synthesised in glycolysis from one glucose. |
| Answer» Correct Answer - 4ATP | |
| 308. |
In a way green plants and cyanobacteria have synthesised all the food on the earth. Comment . |
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Answer» Cyanobacteria are unicelluar prokaryotic organisms. Besides, some primitive cellular cell organelles, they have photosynthetic lamellae where photosyntheic pigments are present. There are chlorophyll-ac, phycocyanin and phycoerythrin. These coloured pigments impart typical blue green colour to the bacteria and enable them to manufacture food for themselves and aquatic animals. Green plants are multicellular organisms capable of making food by using `CO_(2),H_(2)O` and light energy in special cell organelles called chloroplast. So, bacteria and green plants make food for living organisms on earth. |
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| 309. |
Assertion: Chlroine is absorbed as `Cl^(-)` ions. Its precise role is not well known. However, with `Na^(+)` and `K^(+)`, it helps in determining solute concentration and anion-cation balance in cells. Reason: Chlorine plays an important role in photosynthesis and takes place part in the water splitting reaction, thus releasing `O_(2)`.A. If both Assertion and Reason are true and the Reason is a correct explanation of the Assertion.B. If both Assertion and Reason are true but Reason is not a correct explanation of the Assertion.C. If Assertion and Reason are true but Reason is not a correct explanation of the Assertion.D. If Assertion is true but the Reason is false. |
| Answer» Correct Answer - A | |
| 310. |
Stomatal opening and closing is due toA. change in the turgidity of guard cellsB. the inner walls of each guard cells is thick and elastic.C. cellulose microfibrils of guard cells are oriented radially.D. all of these |
| Answer» Correct Answer - D | |
| 311. |
Chloroplast dimophism is a characteristic feature ofA. plants with calvin cycleB. `C_(4)` plantsC. all plantsD. only in algae |
| Answer» Correct Answer - B | |
| 312. |
Which one of the following statements about the events of non-cyclic photophosphorylation is correct.A. photolysis of water takes placeB. `O_(2)` is releasedC. Only one photosystem participates.D. ATP & NADPH are produced |
| Answer» Correct Answer - C | |
| 313. |
Thylakoids occur insideA. MitochondriaB. ChloroplastC. GolgiapparalusD. Endoplasmic reticulum |
| Answer» Correct Answer - B | |
| 314. |
Cyanide resistant pathway isA. Anaerobic respirationB. Aerobic respiratinC. Both a and bD. none of these |
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Answer» Correct Answer - A Cyanide is deadly poison which inhibit the activity of cytochrome oxidase enzyme of electron transport chain. As in case of aerobic repiration there is no electron transport chain involved, therefore, anaerobic respiration is cyanide resistant pathyway. |
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| 315. |
The incomplete breakdown of sugars in anaerobic respiration results in the formation of Or End product of anaerobic respiration is Or the end products of fermentation when sugars are used as raw materialA. Fructose and waterB. Glucose and `CO_(2)`C. Alcohol and `CO_(2)`D. Water and `CO_(2)` |
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Answer» Correct Answer - C `C_(6)H_(12)O_(6)rarr2C_(2)H_(5)OH+2CO_(2)+21` Kcal |
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| 316. |
Incomplete breakdown of sugar in anaerobic respiration formsA. Glucose and `CO_(2)`B. Alcohol and `CO_(2)`C. Water and `CO_(2)`D. Fructose and water |
| Answer» Correct Answer - B | |
| 317. |
Inhibition of sugar breakdown due to the presence of `O_(2)` under aerobic condition is calledA. Pasteur effectB. Warburg effectC. Crabtree effectD. Kutusky effect |
| Answer» Correct Answer - A | |
| 318. |
The ultimate electron acceptor of respiration in an aerobic organismsis is:A. CytochromeB. OxygenC. HydrogenD. Glucose |
| Answer» Correct Answer - B | |
| 319. |
Cytochromcs areA. Electron acceptorsB. Protein acceptorsC. Oxygen acceptorsD. Passage way for carbohydrates |
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Answer» Correct Answer - A (A) Cytochromes are electron acceptors. |
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| 320. |
A mass of living cells are kept in a culture medium under anaerobic conditions. The cells were supplied with labelled `c^14` glucose. Pick up the true statementA. `CO_2` will contain `C^14`B. cell would burstC. water will have radioactivityD. ATP will have radioactivity |
| Answer» Correct Answer - A | |
| 321. |
Energy for ATP synthesis is obtained fromA. Oxygen ion gradientB. Hydrogen ion gradientC. Nitrogen ion gradientD. All of the above |
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Answer» Correct Answer - B (B) Energy for ATP synthesis is obtained from hydrogen ion gradient/proton gradient. |
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| 322. |
Animal cells are suspended in a culture medium that contains excess glucose. The graph below shows glucose utilisation under different growth conditions (A),(B), and (C) in the graph indicate A. A-Anaerobic respiration B-Introduction of `O_(2)` to culture medium C- Aerobic respirationB. A-Aerobic respiration B-Introduction of `O_(2)` to culture medium `C`- Anaerobic respirationC. A-Aerobic respiration B-Supply of organic triphosphate C-Aerobic respirationD. A-Aerobic respiration B-Introduction of CO to culture medium C-Anaerobic respiration. |
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Answer» Correct Answer - a Anaerobic respiration takes place in the absence of oxygen. It leads to incomplete degradation of substrate into alcohol and `CO_(2)` releasing some energy `(2ATP)`. Aerobic respiration occurs in the presence of oxygen. It results in complet oxidation of substrate into `CO_(2)`, water and energy `(38ATP)`. |
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| 323. |
The ultimate electron acceptor of respiration in an aerobic organism isA. cytochromeB. oxygenC. hydrogenD. glucose |
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Answer» Correct Answer - b The electron transport chain catalyses an electron flow from `NADH (FADH_(2))` to oxygen, which is the final electron acceptor of the respiratory process. It produces water in the mitochondrial matrix. `NADH + H^(+) hArr NAD^(+) + 2H^(+) + 2e^(-)` `FADH_(2) hArr FAD + 2H^(+) + 2e^(-)` `(1)/(2)O_(2) + 2H^(+) + 2e^(-) rarr H_(2)O` |
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| 324. |
Energy released in aerobic respiration is higher than the one available from anaerobic respiration byA. 8 timesB. 19 timesC. 28 timesD. 36 times |
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Answer» Correct Answer - B (B) Energy released in aerobic respiration (36 ATP) is higher than the one available from anaerobic respira- tion (2 ATP) by 18 times. |
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| 325. |
Energy relased by oxidatio is respiration is not used directly but is used to synthesise ATP. |
| Answer» Correct Answer - 1 | |
| 326. |
Which of these are respiratory poisons or inhibitor of ETC?A. CyanidesB. Antimycin AC. Carbon monoxideD. All of these |
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Answer» Correct Answer - d Site-specific inhibitors of electrons transport prevent the passage of electrons by binding to a component of the chain, blocking the oxidation/reduction reaction. Antimycin A, an antibiotic, blocks electron transpart at the level of the `CoQH_(2)`-cytochrome c-reductase (Complex III). Cyanide azide and CO bind with cytochrome oxidase complex and inhibit the terminal of electrons to oxygen. |
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| 327. |
Recognise the figure and out the correct matching. A. b-2-phosphoglycerate, a- 3-phosphoglyceric acid, c- pyruvic acid, d- phosphoenolpyruvateB. a- 2-phosphoglycerate, b-3-phosphoglyceric acid, c- pyruvic acid, d- phosphoenolpyruvateC. b-2-phosphoglycerate, a- 3-phosphoglyceric acid, d- pyruvic acid, c- phosphoenolpyruvateD. a- 2-phosphoglycerate, b-3-phosphoglyceric acid, d- pyruvic acid, c- phosphoenolpyruvate |
| Answer» Correct Answer - C | |
| 328. |
Protons for the formation of ATP first pass fromA. `F_(0)` partB. `F_(1)` head pieceC. Cyt cD. Complex II |
| Answer» Correct Answer - A | |
| 329. |
The molecule that regularly enters through the inner membrane of mitochondrion isA. ATPB. pyruvic acidC. glucoseD. citric acid |
| Answer» Correct Answer - B | |
| 330. |
How many oxygen n:iolecules are used in glycolysis of one molecule of glucose ?A. `1//2`B. 1C. 0D. 2 |
| Answer» Correct Answer - C | |
| 331. |
What is the main feature of -P bond in ATPA. 2 bonds having high energyB. 2 Molecules of phosphrous in ATPC. 3 atoms of high energy phosphateD. None of these |
| Answer» Correct Answer - A | |
| 332. |
The end product of oxidative phosphorylation isA. ATPB. `O_2`C. `NADH_2`D. `ATP &H_2O` |
| Answer» Correct Answer - D | |
| 333. |
The end product of oxidative phosphorylation isA. NADHB. OxygenC. ADPD. ATP + `H_(2)O` |
| Answer» Correct Answer - D | |
| 334. |
Which one is not correct about Krebs cycle ?A. It is also called citric acid cycleB. The intermediate compound which links glycolysis with Krebs cycle is malic acidC. It occurs in mitochondriaD. It starts with six carbon compound |
| Answer» Correct Answer - B | |
| 335. |
In which one of the following processes `CO_(2)` is not released ?A. Aerobic respiration in plants.B. Aerobic respiration in animalsC. Alcoholic fermentationD. Lactate fermentation |
| Answer» Correct Answer - D | |
| 336. |
Assertion. Krebs cycle is regarded the amphibolic (central) pathway of the cell. Reason. Catabolic pathways converge on it and anabolic pathways diverge from it.A. If both A and R are true and R is the correct explanation of A.B. If both A and R are true but R is not the correct explanation of A.C. If A is true but R is false.D. If both A and R are false. |
| Answer» Correct Answer - A | |
| 337. |
In which type of reactions related to plant photosynthesis peroxisomes are involvedA. Glycolate cycleB. Calvin cycleC. Bacterial photosynthesisD. Glyoxylate cycle |
| Answer» Correct Answer - D | |
| 338. |
Fumarase changes fumaric acid intoA. Malic acidB. Malcic acidC. Citric acidD. Succinic acid |
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Answer» Correct Answer - A (A) Fumarase changes fumaric acid into malic acid. |
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| 339. |
Which of these statements is incorrect.A. Oxidative phosphorylation takes place in outer mitochondrial membraneB. Glycolysis operates as long as it is supplied with NAO that can pick up hydrogen atoms.C. Glycolysis occurs in cytosol.D. Enzymes of TCA cycle are present in mitochondrial matrix. |
| Answer» Correct Answer - A | |
| 340. |
Fat has two components, glycerol and fatty acids. They enter common pathway of respiration asA. DHAP and ketoglutarateB. Glyceraldehyde-3-phosphate and acetyl CoAC. Glycolic acid and acetyl CoAD. OAA and Glyceric acid |
| Answer» Correct Answer - B | |
| 341. |
If it is calculated that less than 5% of the energy of glucose is recovered as ATP in glycolysis, the remaining energy is left inA. `CO_2` and NADPHB. Pyruvate and `FADH_2`C. Pyruvate and NADHD. `CO_2 and NADH_2` |
| Answer» Correct Answer - C | |
| 342. |
A plant in your garden avoids photorespiratory losses, has improved water use efficiency shows high rates of photosynthesis at high temperatures and has improved efficiency of nitrogen utilisation. In which of the followubg physiological groups would you assign this plantA. `C_(4)`B. CAMC. Nitrogen fixerD. `C_(3)` |
| Answer» Correct Answer - A | |
| 343. |
Photosynthesis is maximum inA. Green lightB. Blue followed by red lightC. Red followed by red lightD. Blue light |
| Answer» Correct Answer - C | |
| 344. |
The type of `CO_(2)` fixation seen in many succulent plant species isA. `C_(4)` pathwayB. `C_(2)` pathwayC. CAM pathwayD. `C_(3)` pathway |
| Answer» Correct Answer - C | |
| 345. |
In the leaves of `C_(4)` plants, malic acid formation during `CO_(2)` fixation occurs in the cells ofA. Bundle sheathB. PhloemC. EpidermisD. Mesophyll |
| Answer» Correct Answer - D | |
| 346. |
In the leaves of `C_(4)` plants, malic acid formation during `CO_(2)` fixation occurs in theA. Bundle sheathB. Guard cellsC. Epidermal cellsD. Mesophyll cells. |
| Answer» Correct Answer - D | |
| 347. |
Which is the site of Krebs cycle ?A. ChloroplastB. Golgi bodyC. MitochondriaD. Endoplasmic reticulum |
| Answer» Correct Answer - C | |
| 348. |
Which of the following statements regarding mitochondrial membrane is NOT correct ?A. The inner membrane is highly convoluted forming a series of infolding.B. The outer membrane resembles a sieve.C. The outer membrane is permeable to all kinds of molecules.D. The enzymes of the electron transfer chain are embedded in the outer membrane. |
| Answer» Correct Answer - D | |
| 349. |
Succinyl Co-A is related toA. Krebs cycleB. Calvin cycleC. Glycolate cycleD. HMP-cycle |
| Answer» Correct Answer - A | |
| 350. |
Which of the following is coenzyme -II ?A. NADB. NADPC. FADD. None of the above |
| Answer» Correct Answer - B | |