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NEET UG Respiration in Plants — practice questions — page 2

Explore 100 free Respiration in Plants questions in NEET UG Biology. Open each question or exercise to read its content, reference answers and available explanation.

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Respiration in Plants questions and exercises with answers

Showing questions 31–60 of 100.

Alcoholic fermentation produces, besides ethanol,Read the answer and worked solution →The final electron acceptor in aerobic respiration isRead the answer and worked solution →The total ATP yield per glucose by aerobic respiration is approximatelyRead the answer and worked solution →The Krebs cycle takes place in theRead the answer and worked solution →Plants carry out respiration inRead the answer and worked solution →Compared with anaerobic respiration, aerobic respiration yieldsRead the answer and worked solution →The overall reaction of aerobic respiration isRead the answer and worked solution →Glycolysis takes place inRead the answer and worked solution →The net energy yield of glycolysis per glucose isRead the answer and worked solution →In plant cells under low-oxygen conditions, pyruvate is typically converted intoRead the answer and worked solution →The Krebs cycle takes place inRead the answer and worked solution →Per turn of the Krebs cycle, acetyl-CoA combines with which molecule first?Read the answer and worked solution →How many CO₂ molecules are released per glucose by the link reaction plus Krebs cycle?Read the answer and worked solution →In the electron-transport chain of aerobic respiration, the final electron acceptor isRead the answer and worked solution →The textbook total ATP yield per glucose under aerobic conditions is approximatelyRead the answer and worked solution →The respiratory quotient (RQ) of a fat-rich seed during germination is closest toRead the answer and worked solution →NEET · Biology · Glycolysis — Gap FillRead the answer and worked solution →Key in the respiration numbersRead the answer and worked solution →Mark the respiration bingo boardRead the answer and worked solution →Order glucose to succinic acidRead the answer and worked solution →Drop each name into its stageRead the answer and worked solution →Catch the fermentation chipsRead the answer and worked solution →Besides stomata, which openings let woody stems exchange gases?Read the answer and worked solution →Why can plants manage without respiratory organs?Read the answer and worked solution →In thick woody stems, the cells in the interior are mostlyRead the answer and worked solution →What gives plant organs an interconnected network of air spaces?Read the answer and worked solution →Why do cells oxidise glucose in many small steps rather than one?Read the answer and worked solution →In the word glycolysis, the Greek root lysis meansRead the answer and worked solution →The EMP pathway is named after Embden, Meyerhof andRead the answer and worked solution →In anaerobic organisms, which is the only process of respiration?Read the answer and worked solution →

Worked practice questions

Alcoholic fermentation produces, besides ethanol,

  1. lactic acid
  2. CO₂
  3. water
  4. O₂
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Correct answer: B. CO₂

Pyruvate → acetaldehyde + CO₂, then acetaldehyde → ethanol. The CO₂ makes bread rise. **Net:** glucose → 2 ethanol + 2 CO₂ + 2 ATP.

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The final electron acceptor in aerobic respiration is

  1. NAD⁺
  2. FAD
  3. ATP
  4. O₂
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Correct answer: D. O₂

O₂ accepts electrons at the end of the ETC, combining with H⁺ to form water. Without O₂ the chain backs up and ATP production stops.

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The total ATP yield per glucose by aerobic respiration is approximately

  1. 2
  2. 4
  3. 8
  4. 36-38
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Correct answer: D. 36-38

2 (glycolysis) + 2 (Krebs) + ~30-32 (oxidative phosphorylation) ≈ 36-38 ATP. Anaerobic fermentation only gives the 2 net from glycolysis.

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