Question

Do mitochondria use glucose?

Answer 1

Hint: Mitochondria helps in cellular respiration with the breakdown of food with the presence of oxygen. It leads to the release of water, carbon dioxide and waste products. It works with the release of ATP therefore it is also known as the powerhouse of the cell.

Complete answer:
Yes, in mitochondria breakdown of glucose takes place to provide energy to the body. Therefore in cellular respiration or glycolysis, mitochondria use glucose with the release of ATP, which provides energy to the body.
Cellular respiration or glycolysis is a long process and takes place in those organisms which show aerobic respiration. In the glycolysis process, the one-carbon molecule of glucose splits into two pyruvic acids which are made up of 3 carbon each. It is a ten-step reaction that takes place in the cytosol of a cell. It is divided into the energy-requiring and energy-releasing process. In the energy-requiring process, glucose gets rearranged with the attachment of two phosphate groups and in this step, ATP gets used up. In the energy-releasing phase, three-carbon sugar gets converted into pyruvate made up of three carbon. In each step of glycolysis, each reaction takes its enzyme for the formation of products. In glycolysis, we get four ATP out of which two are used up in the reaction, so net two ATP and two NADPH molecules form.

Note:
Glycolysis is the only process that takes place in all living organisms like prokaryotes and eukaryotes. The most important enzyme for glycolysis is phosphofructokinase, it helps to catalyse unstable phosphate sugar molecules.