AP BIOLOGY

Detailed explanation-1: -During respiration, all living organisms inhale oxygen and exhale carbon dioxide into the air. Therefore, all living organisms need oxygen to survive.

Detailed explanation-2: -The air we breathe: three vital respiratory gases and the red blood cell: oxygen, nitric oxide, and carbon dioxide.

Detailed explanation-3: -Plants both use oxygen (during respiration) and produce it (via photosynthesis). Oxygen can also form a molecule of three atoms, which is known as ozone (O3).

Detailed explanation-4: -When you inhale (breathe in), air enters your lungs, and oxygen from that air moves to your blood. At the same time, carbon dioxide, a waste gas, moves from your blood to the lungs and is exhaled (breathed out).

Detailed explanation-5: -The raw materials required for aerobic cellular respiration are respiratory substrates (glucose, fatty acids, amino acids, or organic acids) and oxygen but in the case of anaerobic respiration raw material is respiratory substrate only.