Krebs Cycle Important MCQs
1. The Krebs cycle is a series of biochemical reactions that occur in the cytoplasm of cells.
2. The Krebs cycle is also known as the citric acid cycle or the tricarboxylic acid cycle.
3. The Krebs cycle is responsible for the production of energy in cells.
4. The Krebs cycle is a four-step process that involves the conversion of carbohydrates into energy.
5. The first step of the Krebs cycle is the conversion of carbohydrates into glucose.
6. The second step of the Krebs cycle is the conversion of glucose into pyruvate.
7. The third step of the Krebs cycle is the conversion of pyruvate into acetyl CoA.
8. The fourth step of the Krebs cycle is the conversion of acetyl CoA into energy.
The Krebs Cycle is a Component of Cellular Respiration
The Krebs cycle is a component of cellular respiration. Cellular respiration is the process that cells use to convert the energy in food into a form that they can use. The Krebs cycle is a series of chemical reactions that convert the energy in glucose into a form that cells can use. The Krebs cycle occurs in the mitochondria, the organelles that produce energy for the cell.
Steps in the Krebs Cycle
1. The Krebs cycle begins with the glycolysis pathway. Glucose is converted into two molecules of pyruvate.
2. The pyruvate molecules are then transported into the mitochondria.
3. The pyruvate molecules are then converted into acetyl coenzyme A (acetyl-CoA)
4. The acetyl-CoA molecules are then combined with oxaloacetate to form citrate.
5. The citrate molecules are then converted into oxaloacetate and acetyl-CoA.
6. The oxaloacetate and acetyl-CoA molecules are then converted into CO2 and water.
Products of the Krebs Cycle
The products of the Krebs cycle are carbon dioxide, water, and energy. The carbon dioxide is released from the cycle, and the water and energy are used by the cells to perform their work.
The Krebs Cycle’s Importance
The Krebs Cycle is important because it helps to create adenosine triphosphate (ATP), which is necessary for the cell to carry out its functions. The cycle also helps to break down food molecules into energy that the cell can use.