AP BIOLOGY

Detailed explanation-1: -Which organ systems are involved in cellular respiration? The glucose needed for cellular respiration comes from the digestive system via the cardiovascular system. The oxygen needed for cellular respiration comes from the respiratory system also via the cardiovascular system.

Detailed explanation-2: -Explanation: The respiratory system is primarily used to transport air, while the digestive system is used to transport fluids (such as water) and solids (such as food particulates). The respiratory and the digestive systems share the region of the mouth and upper throat, where air, fluids, and solids can be mixed.

Detailed explanation-3: -When cellular respiration is aerobic, it uses oxygen and releases carbon dioxide as a waste product. Respiration by the respiratory system supplies the oxygen needed by cells for aerobic cellular respiration and removes the carbon dioxide produced by cells during cellular respiration.

Detailed explanation-4: -Digestion: Food is broken down into nutrients physically (through dissolving and breaking it into smaller bits) and chemically (through chemical reactions). Absorption: During absorption, nutrients diffuse or are moved into the blood. Energy from these nutrients is made available to cells through cellular respiration.