AP BIOLOGY

Detailed explanation-1: -While most aerobic respiration (with oxygen) takes place in the cell’s mitochondria, and anaerobic respiration (without oxygen) takes place within the cell’s cytoplasm.

Detailed explanation-2: -In the mitochondria, cellular respiration occurs in the mitochondrial matrix through the Krebs cycle to form ATP, FADH2 and NADH. The formed FADH2 and NADH then go into the inner mitochondrial membrane where they are involved in the electron transport chain to form more ATP molecules.

Detailed explanation-3: -They are found inside the cytoplasm and essentially function as the cell’s “digestive system.” They play a major role in breaking down nutrients and generating energy-rich molecules for the cell.

Detailed explanation-4: -Mitochondria are semi-autonomous organelles that are descendants of endosymbiotic bacteria. Mitochondria play a pivotal role in cellular energy production through the mitochondria-housed pathways of citric acid cycle, fatty acid oxidation, respiration and oxidative phosphorylation (OXPHOS).

Detailed explanation-5: -What cells have the most mitochondria? A. Your heart muscle cells – with about 5, 000 mitochondria per cell. These cells need more energy, so they contain more mitochondria than any other organ in the body!