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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.
| 351. |
The deficiencies of micronutrients not only affects growth of plants, but lso vital functions such as photosynthetic and mitochondrial electron flow. Among the list given below, which group of three elements shall affect the most, both photosynthetic and mitochondrial electron transport ?A. Cu, Mn FeB. Co, Ni, MoC. Mn Co, CaD. Ca, K, Na |
| Answer» Correct Answer - A | |
| 352. |
Respiratory quotient (R.Q.) isA. Volume of `O_(2)` evolved/Volume of `CO_(2)` consumedB. Volume of `CO_(2)` evolved/Volume of `O_(2)` consumedC. Volume of `O_(2)` consumed/Volume of `CO_(2)` evolvedD. Volume of `CO_(2)` consumed/Volume of `O_(2)` evolved |
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Answer» Correct Answer - B (B) Respiratory quotient (R.Q.) is volume of CO2 evolved/Volume of `O_(2)` consumed. |
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| 353. |
Which of the following is not an intermediate in Krebs cycle ?A. Acetic acidB. Succinyl coenzyme-AC. Malic acidD. Citric acid |
| Answer» Correct Answer - A | |
| 354. |
In respiration, the largest amount of energy is produced inA. Anaerobic respirationB. Krebs cycleC. GlycolysisD. None of the above |
| Answer» Correct Answer - B | |
| 355. |
In which one of the following process `CO_(2)` is not released ?A. Aerobic respiration in plantsB. Aerobic respiration in animalsC. Alcoholic fermentationD. Lactate fermentation |
| Answer» Correct Answer - D | |
| 356. |
Glycolysis takes place inA. CytoplasmB. NucleusC. PlastidD. Mitochondria |
| Answer» Correct Answer - A | |
| 357. |
In alcohol fermentation,A. Triosephosphate is the electron donor, while acetaldehye is the electron acceptor.B. Triosephosphate is the electron donor, while pyruvic acid is the electron acceptor.C. There is no electron donor.D. Oxygen is the electron acceptor. |
| Answer» Correct Answer - A | |
| 358. |
Glycolysis takes place inA. All cellsB. Only eukaryotic cellsC. Muscle cellsD. Nerve cells |
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Answer» Correct Answer - A (A) Glycolysis takes place in all cells. |
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| 359. |
Chemiosmotic theory of ATP synthesis in mitochondria is based onA. membrane potentialB. accumulation of `Na^(+)` ionsC. accumulation of `K^(+)` ionsD. proton gradient |
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Answer» Correct Answer - D Chemiosmotic hypothesis for oxidative phosphorylation (ATP synthesis) was proposed by Peter Mitchell in 1961 , for this he was awarded Nobel prize in 1978. This theory is based on proton gradient. |
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| 360. |
In glycolysis, during oxidation, electrons are removed byA. ATPB. Glyceraldehyde-3-phosphateC. `NAD^(+)`D. Molecular oxygen |
| Answer» Correct Answer - C | |
| 361. |
In glycolysis, during oxidation, electrons are removed byA. Molecular oxygenB. ATPC. GlyceraldehydeD. `NAD^(+)` |
| Answer» Correct Answer - D | |
| 362. |
In glycolysis, during oxidation electrons are removed byA. ATPB. GAPC. `NAD^+`D. molecular oxygen |
| Answer» Correct Answer - C | |
| 363. |
In glycolysis, during oxidation electrons are removed byA. ATPB. glyceraldehyde-3-phosphateC. `NAD^(+)`D. molecular oxygen |
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Answer» Correct Answer - C When 3-phosphoglyceraldehyde is converted into 1,3 diphosphoglyceric acid, two electrons and convert `NAD^(+)` to NADH and one `H^(+) NAD^(+) + 2H^(+) + 2e^(-) to NADH + H^(+)` |
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| 364. |
In glycolysis, during oxidation electrons are removed byA. ATPB. NADC. Glyceraldehyde 3-phosphateD. Molecular oxygen |
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Answer» Correct Answer - B (B) In glycolysis, electrons are removed by NAD. |
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| 365. |
How many molecules of 1NADH+H^+` are left at the end of anaerobic respirationA. 2B. 4C. 6D. 0 |
| Answer» Correct Answer - D | |
| 366. |
Why the usual RO for humans lies between 0.7 and 1.0 becauseA. they respire fat and proteinB. they utilize and respire carbohydrate and fatC. they arespire carbohydrate and proteinsD. they respire proteins and carbohydrate |
| Answer» Correct Answer - B | |
| 367. |
Which pigment is converted to vitamin A by animals and human beings. |
| Answer» `beta`-carotene | |
| 368. |
Which of the following statements is true with regard to light reaction of photosynthetic mechanism in plantsA. chlorophyll a occurs with peak absorption at 680 nm in photosystem I and at 700 nm in photosystem II.B. magnesium and sodium ions are associated with photolysis of water moelcules.C. `O_(2)` is evolved during cyclic photophosphorylation.D. photo systems I and II are both involved in non-cyclic photophosphorylation. |
| Answer» Correct Answer - D | |
| 369. |
In `C_(4)` plantsA. Grana present in mesophyll cells and absent in bundle sheath cells.B. Grana absent in mesophyll cells and present in bundle sheath cells.C. Grana present in both mesophyll and bundle sheath cells.D. Grand absent in both mesophyll and bundle sheath cells. |
| Answer» Correct Answer - A | |
| 370. |
Hill reaction occurs inA. High altitude plantsB. Total darknessC. Absence of waterD. Presence of ferricyanide |
| Answer» Correct Answer - D | |
| 371. |
What is difference between a quantum and a photon? |
| Answer» Both are same. The unit quantity of light energy in the quantum theory is called quantum, whereas the same of the electromagnetic field is called photon. | |
| 372. |
Photorespiratioin in `C_(3)` plants starts fromA. PhosphoglycerateB. PhosphoglycolateC. GlycerateD. Glycine |
| Answer» Correct Answer - B | |
| 373. |
What is quantum requirement? |
| Answer» The minimum number of light quanta needed for the production of one molecule of oxygen. | |
| 374. |
Emerson effects explain the phenomenon ofA. TranspirationB. Absorption of water by roots.C. PhotosynthesisD. Respiration |
| Answer» Correct Answer - C | |
| 375. |
What conclusions have been drawn from Emerson Effects? |
| Answer» There are two separate photosynthesis: PS I and PS II. | |
| 376. |
Name the reaction centers of PS I and PS II. |
| Answer» `P_(700)` and `P_(680)`. | |
| 377. |
Mitochondria are called powerhouses of the cell. Which of the following observations support this statement ?A. Mitochondria synthesise ATPB. Mitochondria have a double membraneC. The enzymes of the Krebs cycle and the cytochromes are found in mitochondria.D. Mitochondria are found in almost all plants and animal cells. |
| Answer» Correct Answer - A | |
| 378. |
Which of the following observations most strongly support the view that mitochondria contain transport enzymes aggregated into compact association ?A. Mitochondria have a highly folded inner membraneB. Disruption of mitochondria yield membrane fragments which are able to synthesize ATPC. A contractile protein able to utilize ATP is found in mitochondriaD. None of the above. |
| Answer» Correct Answer - B | |
| 379. |
Which one is product of aerobic respirationA. Malic acidB. Ethyl alcoholC. Lactic acidD. Pyruvic acid |
| Answer» Correct Answer - A | |
| 380. |
What kind of enzymes are present in mitochondria ? |
| Answer» Correct Answer - Respiratory. | |
| 381. |
Which type of respiration produces water as one of the products ? |
| Answer» Correct Answer - Aerobic respiration. | |
| 382. |
The energy consumed during the convension of ADP into ATP isA. 73000 cal/moleB. 686000 cal/moleC. 8000 cal/moleD. 7300 cal/mole |
| Answer» Correct Answer - D | |
| 383. |
How many high-energy phosphate molecules are formed in each, glycolysis and Krebs cycle ? Give their names too. |
| Answer» Correct Answer - 2 ATP, 2 GTP. | |
| 384. |
What do ATP and ADP stand for ? |
| Answer» Correct Answer - Adenosine triphosphate, adenosine diphosphate. | |
| 385. |
How many high-energy phosphate molecules are formed from one glucose molecule ? |
| Answer» Correct Answer - 36 | |
| 386. |
Name the enzyme oxysomes represent. |
| Answer» Correct Answer - ATPase (ATP synthetase). | |
| 387. |
What is the shuttle system ? Give its role also. |
| Answer» A special electron carrier system located in the mitochondrial membrane is called shuttle system. It transfers electrons from the hydrogens of cytoplasmic NADH to the mitochondrial electron carriers across the mitochondrial membrane. | |
| 388. |
A process that makes important difference between `C_(3)` and `C_(4)` plants isA. TranspirationB. GlycolysisC. PhotosynthesisD. Photorespiration |
| Answer» Correct Answer - D | |
| 389. |
Which of the following process makes direct use of oxygen ?A. GlycolysisB. FermentationC. Electron transportD. Krebs citric acid cycle |
| Answer» Correct Answer - C | |
| 390. |
Chemiosmosis isA. synthesis of ATP using the driving force of proton gradient across mitochondrial inner membraneB. synthesis of ATP by the discharge of chemical potential created by protons and hydroxyl ions on different sides of a membraneC. chemical synthesis of ATP by taking energy rich bond from a respiratory substrateD. both (1 ) and (2) |
| Answer» Correct Answer - D | |
| 391. |
Both mitochondria and chloroplastsA. use a hydrogen ion (proton) gradient to produce ATPB. obtain electron from waterC. reduce `NAD^+`, forming NADPD. release oxygen as a by product |
| Answer» Correct Answer - A | |
| 392. |
In carbon dioxide reductioin ATP isA. UsedB. UnusedC. May be used or not usedD. None |
| Answer» Correct Answer - A | |
| 393. |
The graph shows the relation between light intensity and the giving off and taking up of carbon dioxide by the leaves of a plant. Why is most carbon dioxide given off when the light intensity is zero units. A. because it is just the start of the experimentB. only respiration is taking place at this intensity of lightC. the rate of photosynthesis is equivalent to the rate of respirationD. the rate of photosynthesis is more than the rate of respiration |
| Answer» Correct Answer - B | |
| 394. |
Comment of the statement resiration is an energy producing process but ATP is being used in some steps of the process. |
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Answer» Respiration is necessary catabolic which occures in stepwise to produces energy. Whenever bioligical system requires energy it is provided by hydrolysis of ATP molecules. When one ATP is hydrolysed to ADP+PI,i.e., one phosophate bond is borken down, thus producing 73 kcal energy. Thus, ATP is utlised only when it is required so as to maintain the respiratory balance sheet |
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| 395. |
Which technique was used to prove that `O_(2)` comes from water and not from `CO_(2)`? |
| Answer» Radio isotope technique. | |
| 396. |
After glycolysis, fate of glucose in mitochondrial matrix isA. HydrolysisB. Oxidative decarboxylationC. ReductionD. Oxidation |
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Answer» Correct Answer - B (B) After glycolysis, fate of glucose in mitochondrial matrix is oxidative decarboxylation. |
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| 397. |
In mitochondria, protons accumulate in theA. Outer membraneB. Intermembrane spaceC. Inner membraneD. Matrix |
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Answer» Correct Answer - B (B) In mitochondria, protons accumulate in intermembrane space. |
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| 398. |
GlycolysisA. Occurs in mitochondriaB. Has no connection with ETCC. Reduces 2 molecules of `NAD^(+)` per glucoseD. Produces no ATP |
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Answer» Correct Answer - C (C) Glycolysis reduces 2 molecules of `NAD^(+)` per glucose. |
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| 399. |
Which of the following minerals activate the enzymes involved in respiration?A. N and PB. Mg and MnC. Kand CaD. S and Fe |
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Answer» Correct Answer - B (B) Minerals that activate respiratory enzymes are `Mg" and "Mn`. |
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| 400. |
Which of the following minerals activate the enzymes involved in respiration.A. Nitrogen and phosphorusB. Magnesium and magganeseC. Potassium and calciumD. Sulphur and iron |
| Answer» Correct Answer - B | |