Within the mitochondrion, the citric acid cycle occurs in the mitochondrial matrix, and oxidative metabolism occurs at the internal folded mitochondrial membranes (cristae). Cells generate energy ...

The natural form of citric acid is an antioxidant that helps counter inflammation and cell damage. Synthetic forms extend the shelf life of foods and beverages and give them an acidic flavor.

citric acid, and baking soda in a small, zip-closing plastic snack bag to produce and trap carbon dioxide gas in the bag. Students test the inflated bag as a possible flotation device for a model cell ...