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Which of the following statements are correct?
(A) The oxidation of pyruvic acid molecules formed in glycolysis occurs inside the mitochondria.
(B) Acetyl CoA is a 3-carbon compound.
(C) Under anaerobic conditions, the pyruvic acid formed during glycolysis is reduced to either ethyl alcohol or lactic acid.
(D) Acetyl CoA molecules enter into cyclic reactions during Calvin cycle.
  • a)
    (A) and (B)
  • b)
    (C) and (D)
  • c)
    (A) and (C)
  • d)
    (B) and (C)
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
Which of the following statements are correct?(A) The oxidation of pyr...
Statement (A): The oxidation of pyruvic acid molecules formed in glycolysis occurs inside the mitochondria.

This statement is correct. After glycolysis, pyruvic acid molecules are transported into the mitochondria, where they undergo further oxidation in a process called the Krebs cycle or citric acid cycle. This cycle takes place in the mitochondrial matrix, producing energy-rich molecules such as ATP and NADH.

Statement (B): Acetyl CoA is a 3-carbon compound.

This statement is incorrect. Acetyl CoA is a 2-carbon compound. It is formed when a molecule of pyruvic acid undergoes decarboxylation, resulting in the release of carbon dioxide. Acetyl CoA is an important molecule in cellular respiration as it enters the Krebs cycle and acts as a key intermediate in the oxidation of glucose.

Statement (C): Under anaerobic conditions, the pyruvic acid formed during glycolysis is reduced to either ethyl alcohol or lactic acid.

This statement is correct. Under anaerobic conditions, when oxygen is not available, pyruvic acid is converted into either ethyl alcohol or lactic acid through a process called fermentation. In yeast and some microorganisms, pyruvic acid is converted to ethyl alcohol, while in certain bacteria and muscle cells, it is converted to lactic acid. Fermentation allows for the regeneration of NAD+ molecules, which are required for glycolysis to continue in the absence of oxygen.

Statement (D): Acetyl CoA molecules enter into cyclic reactions during the Calvin cycle.

This statement is incorrect. Acetyl CoA does not enter into cyclic reactions during the Calvin cycle. The Calvin cycle, which is a part of photosynthesis, takes place in the chloroplasts of plants. It involves the fixation of carbon dioxide and the synthesis of glucose. Acetyl CoA, on the other hand, is primarily involved in cellular respiration and acts as a key intermediate in the oxidation of glucose.

Overall, the correct statements are (A) and (C).
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Community Answer
Which of the following statements are correct?(A) The oxidation of pyr...
Acetyl CoA is a 2-carbon compound and 3-phosphoglycerate molecule enter into cyclic reactions during Calvin cycle.
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Read the passage given below and answer the following questions:Adenosine triphosphate (ATP) is the energy carrying molecule found in the cells of all living things. ATP captures chemical energy obtained from the breakdown of food molecules and releases it to fuel other cellular processes. ATP is a nucleotide that consists of three main structures: the nitrogenous base, adenine; the sugar, ribose; and a chain of three phosphate groups bound to ribose. The phosphate tail of ATP is the actual power source which the cell taps. Available energy is contained in the bonds between the phosphates and is released when they are broken, which occurs through the addition of a water molecule (a process called hydrolysis). Usually only the outer phosphate is removed from ATP to yield energy; when this occurs ATP is converted to adenosine diphosphate (ADP), the form of the nucleotide having only two phosphates.The importance of ATP (adenosine triphosphat e) as the main source of chemical energy in living matter and its involvement in cellular processes has long been recognized. The primary mechanism whereby higher organisms, including humans, generate ATP is through mitochondrial oxidative phosphorylation. For the majority of organs, the main metabolic fuel is glucose, which in the presence of oxygen undergoes complete combustion to CO2 and H2O: C6H12O6 + 6O2 → 6O2 + 6H2O + energyThe free energy (ΔG) liberated in this exergonic (ΔG is negative) reaction is partially trapped as ATP in two consecutive processes: glycolysis (cytosol) and oxidative phosphorylation (mitochondri

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Which of the following statements are correct?(A) The oxidation of pyruvic acid molecules formed in glycolysis occurs inside the mitochondria.(B) Acetyl CoA is a 3-carbon compound.(C) Under anaerobic conditions, the pyruvic acid formed during glycolysis is reduced to either ethyl alcohol or lactic acid.(D) Acetyl CoA molecules enter into cyclic reactions during Calvin cycle.a)(A) and (B)b)(C) and (D)c)(A) and (C)d)(B) and (C)Correct answer is option 'C'. Can you explain this answer?
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Which of the following statements are correct?(A) The oxidation of pyruvic acid molecules formed in glycolysis occurs inside the mitochondria.(B) Acetyl CoA is a 3-carbon compound.(C) Under anaerobic conditions, the pyruvic acid formed during glycolysis is reduced to either ethyl alcohol or lactic acid.(D) Acetyl CoA molecules enter into cyclic reactions during Calvin cycle.a)(A) and (B)b)(C) and (D)c)(A) and (C)d)(B) and (C)Correct answer is option 'C'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Which of the following statements are correct?(A) The oxidation of pyruvic acid molecules formed in glycolysis occurs inside the mitochondria.(B) Acetyl CoA is a 3-carbon compound.(C) Under anaerobic conditions, the pyruvic acid formed during glycolysis is reduced to either ethyl alcohol or lactic acid.(D) Acetyl CoA molecules enter into cyclic reactions during Calvin cycle.a)(A) and (B)b)(C) and (D)c)(A) and (C)d)(B) and (C)Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following statements are correct?(A) The oxidation of pyruvic acid molecules formed in glycolysis occurs inside the mitochondria.(B) Acetyl CoA is a 3-carbon compound.(C) Under anaerobic conditions, the pyruvic acid formed during glycolysis is reduced to either ethyl alcohol or lactic acid.(D) Acetyl CoA molecules enter into cyclic reactions during Calvin cycle.a)(A) and (B)b)(C) and (D)c)(A) and (C)d)(B) and (C)Correct answer is option 'C'. Can you explain this answer?.
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