All Courses
Explore Courses UPSC Exam UPSC Test Series Free Notes EduRev Infinity Get the App Login Join for Free
Sign in Open App
NEET Exam  >  NEET Questions  >  Most of the energy of the carbohydrates is re... Start Learning for Free
Most of the energy of the carbohydrates is released by oxidation when
  • a)
    Pyruvic acid is converted into CO2 and H2O
  • b)
    Pyruvic acid is converted into acetyl Co-A
  • c)
    Sugar is converted into pyruvic acid
  • d)
    Glucose is converted into alcohol and CO2
Correct answer is option 'A'. Can you explain this answer?
Clear all your NEET doubts with EduRev
Most Upvoted Answer
Most of the energy of the carbohydrates is released by oxidation whena...
Opt a is correct because in option A the process included to convert pyruvic acid to carbondioxide and water includes link rxn. + krebcycle in which maximum energy is formed or released.
Free Test
FREE
Start Free Test
Start Free Test
Community Answer
Most of the energy of the carbohydrates is released by oxidation whena...
Energy Release in Carbohydrate Metabolism
The process of carbohydrate metabolism involves several steps where energy is extracted from glucose. The most significant release of energy occurs during the oxidation of pyruvic acid.
Understanding Pyruvic Acid Conversion
- Pyruvic acid is a key intermediate in cellular respiration.
- It is produced during glycolysis when glucose is broken down into two molecules of pyruvate.
Oxidation of Pyruvic Acid
- When pyruvic acid is converted into carbon dioxide (CO2) and water (H2O), it undergoes a series of reactions in the Krebs cycle (also known as the citric acid cycle).
- This oxidation process involves multiple enzymatic reactions that release high-energy electrons.
Energy Carrier Molecules
- During the oxidation of pyruvic acid, electron carriers like NADH and FADH2 are generated.
- These carriers transport electrons to the electron transport chain, resulting in the production of ATP, the primary energy currency of the cell.
Comparison with Other Options
- Option B: Conversion of pyruvic acid to acetyl Co-A is a preparatory step and does not release significant energy.
- Option C: The conversion of sugar to pyruvic acid (glycolysis) releases some energy but is less than what is released in the subsequent oxidation.
- Option D: The conversion of glucose to alcohol and CO2 (fermentation) is an anaerobic process that yields much less energy compared to aerobic oxidation.
Conclusion
The oxidation of pyruvic acid to CO2 and H2O is where the majority of energy from carbohydrates is released, making option A the correct choice. This process is crucial for efficient ATP production in aerobic respiration.
Explore Courses for NEET exam

Similar NEET Doubts

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

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

Top Courses for NEETView all

Top Courses for NEET

Most of the energy of the carbohydrates is released by oxidation whena)Pyruvic acid is converted into CO2 and H2Ob)Pyruvic acid is converted into acetyl Co-Ac)Sugar is converted into pyruvic acidd)Glucose is converted into alcohol and CO2Correct answer is option 'A'. Can you explain this answer?
Question Description
Most of the energy of the carbohydrates is released by oxidation whena)Pyruvic acid is converted into CO2 and H2Ob)Pyruvic acid is converted into acetyl Co-Ac)Sugar is converted into pyruvic acidd)Glucose is converted into alcohol and CO2Correct answer is option 'A'. Can you explain this answer? for NEET 2025 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Most of the energy of the carbohydrates is released by oxidation whena)Pyruvic acid is converted into CO2 and H2Ob)Pyruvic acid is converted into acetyl Co-Ac)Sugar is converted into pyruvic acidd)Glucose is converted into alcohol and CO2Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for NEET 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Most of the energy of the carbohydrates is released by oxidation whena)Pyruvic acid is converted into CO2 and H2Ob)Pyruvic acid is converted into acetyl Co-Ac)Sugar is converted into pyruvic acidd)Glucose is converted into alcohol and CO2Correct answer is option 'A'. Can you explain this answer?.
Solutions for Most of the energy of the carbohydrates is released by oxidation whena)Pyruvic acid is converted into CO2 and H2Ob)Pyruvic acid is converted into acetyl Co-Ac)Sugar is converted into pyruvic acidd)Glucose is converted into alcohol and CO2Correct answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for NEET. Download more important topics, notes, lectures and mock test series for NEET Exam by signing up for free.
Here you can find the meaning of Most of the energy of the carbohydrates is released by oxidation whena)Pyruvic acid is converted into CO2 and H2Ob)Pyruvic acid is converted into acetyl Co-Ac)Sugar is converted into pyruvic acidd)Glucose is converted into alcohol and CO2Correct answer is option 'A'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of Most of the energy of the carbohydrates is released by oxidation whena)Pyruvic acid is converted into CO2 and H2Ob)Pyruvic acid is converted into acetyl Co-Ac)Sugar is converted into pyruvic acidd)Glucose is converted into alcohol and CO2Correct answer is option 'A'. Can you explain this answer?, a detailed solution for Most of the energy of the carbohydrates is released by oxidation whena)Pyruvic acid is converted into CO2 and H2Ob)Pyruvic acid is converted into acetyl Co-Ac)Sugar is converted into pyruvic acidd)Glucose is converted into alcohol and CO2Correct answer is option 'A'. Can you explain this answer? has been provided alongside types of Most of the energy of the carbohydrates is released by oxidation whena)Pyruvic acid is converted into CO2 and H2Ob)Pyruvic acid is converted into acetyl Co-Ac)Sugar is converted into pyruvic acidd)Glucose is converted into alcohol and CO2Correct answer is option 'A'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice Most of the energy of the carbohydrates is released by oxidation whena)Pyruvic acid is converted into CO2 and H2Ob)Pyruvic acid is converted into acetyl Co-Ac)Sugar is converted into pyruvic acidd)Glucose is converted into alcohol and CO2Correct answer is option 'A'. Can you explain this answer? tests, examples and also practice NEET tests.
Explore Courses for NEET exam

Top Courses for NEET

Explore Courses
SaveJoin the Discussion on the App for FREE
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev
Get App
© EduRev
Education Revolution
Signup to see your scores go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup