AP BIOLOGY

Detailed explanation-1: -Glycolysis takes place in the cytoplasm. Within the mitochondrion, the citric acid cycle occurs in the mitochondrial matrix, and oxidative metabolism occurs at the internal folded mitochondrial membranes (cristae ).

Detailed explanation-2: -Glycolysis occurs in the cytoplasm and involves two stages which break up glucose – a 6-carbon molecule. During the first stage, glucose is broken into two phosphorylated 3-carbon compounds through a series of reactions.

Detailed explanation-3: -Glycolysis occurs in the cytoplasm where one 6 carbon molecule of glucose is oxidized to generate two 3 carbon molecules of pyruvate. The fate of pyruvate depends on the presence or absence of mitochondria and oxygen in the cells.

Detailed explanation-4: -There are two simple reasons why glycolysis occurs in the cytoplasm of the cell: The enzymes required for the glycolytic pathway are only found in the cytoplasm. A transport protein is required to move glucose across membranes.

Detailed explanation-5: -Nearly all living organisms carry out glycolysis as part of their metabolism. The process does not use oxygen and is therefore anaerobic. Glycolysis takes place in the cytoplasm of both prokaryotic and eukaryotic cells.