Photosynthesis and Cellular Respiration Cycle Explained #2173117 (License: Personal Use)

Sunlight powers photosynthesis in plant cells, where carbon dioxide and water combine to produce glucose and oxygen. That glucose is then used in cellular respiration-especially in mitochondria of animal cells like the frog shown-to generate ATP (usable energy), with oxygen consumed and heat released as a byproduct. The cycle closes as CO₂ and water are returned to the environment.

Used in biology education (K-12 and college) to teach ecosystem energy flow, plant-animal interdependence, and bioenergetics; matches user intent for understanding foundational life science concepts.