Question

Identify the correct sequence for process of energy production from carbohydrates.

• A. Carbohydrates $\to$ Glycolysis $\to$ Pyruvic acid $\to$ AcetylCoA $\to$ Krebs cycle $\to$ $C{O}_2+H_{2}O$ + energy
• B. Carbohydrates $\to$ Glycolysis $\to$ Pyruvic acid $\to$ Krebs cycle $\to$ AcetylCoA $\to$ $C{O}_2+H_{2}O$ + energy
• C. Carbohydrates $\to$ Glycolysis $\to$ AcetylCoA $\to$ Pyruvic acid $\to$ Krebs cycle $\to$ $C{O}_2+H_{2}O$ + energy
• D. Carbohydrates $\to$ Glycolysis $\to$ AcetylCoA $\to$ Krebs cycle $\to$ Pyruvic acid $\to$ $C{O}_2+H_{2}O$ + energy

Answer 1

The correct option is A Carbohydrates $\to$ Glycolysis $\to$ Pyruvic acid $\to$ AcetylCoA $\to$ Krebs cycle $\to$ $C{O}_2+H_{2}O$ + energy

The process of energy production from the carbohydrates(glucose) starts by the process of glycolysis which results in the formation of two molecules of Pyruvic acid as it's a terminal product. The formed Pyruvic acid gets converted to AcetylCoA by the process of oxidative decarboxylation by complex set of reaction mechanism carried out by pyruvate dehydrogenase inside mitochondrial matrix. The formed AcetylCoA enters in Krebs cycle to form CO${}_2$ and H${}_2$O along with large amount of energy.

So, the correct answer is 'Carbohydrates $\to$ Glycolysis $\to$ Pyruvic acid $\to$ AcetylCoA $\to$ Krebs cycle $\to$ CO${}_2$ + H${}_2$O + energy'.