AP BIOLOGY

Detailed explanation-1: -Answer and Explanation: The organelle that will use up oxygen and give off carbon dioxide and water is the mitochondria. The mitochondria is a membrane bound organelle used by eukaryotic cells to carry out cellular respiration. Cellular respiration starts in the cytoplasm with glycolysis.

Detailed explanation-2: -Citric acid cycle. The acetyl CoA combines with a four-carbon molecule and goes through a cycle of reactions, ultimately regenerating the four-carbon starting molecule. ATP (or, in some cases, GTP), NADH, and FADH 2 are made, and carbon dioxide is released. These reactions take place in the mitochondrial matrix.

Detailed explanation-3: -Cellular respiration is the process that occurs in the mitochondria of organisms (animals and plants) to break down sugar in the presence of oxygen to release energy in the form of ATP. This process releases carbon dioxide and water as waste products.

Detailed explanation-4: -Carbon dioxide (CO2) comes from both natural sources (including volcanoes, the breath of animals and plant decay) and human sources (primarily the burning of fossils fuels like coal, oil and natural gas to generate energy).