Environmental Science
Photosynthesis and Carbon Cycle
Quick fact
A single tree can absorb about 26 kg of carbon dioxide per year through photosynthesis.
Why this is interesting
Did you know that every breath of air you take is connected to the leaves on trees? It all starts with a process called photosynthesis.
Read the full explanation
Understanding Photosynthesis and Carbon Cycle
Photosynthesis is how plants, algae, and some bacteria turn sunlight into energy. They take in carbon dioxide from the air and water from the soil to make sugar, releasing oxygen as a byproduct. This process forms part of the carbon cycle, where carbon moves between living things and the environment.
A deeper explanation
Photosynthesis is driven by chlorophyll in plant cells using sunlight as energy. Carbon dioxide enters through tiny pores on leaves called stomata. The carbon from CO2 becomes part of glucose molecules, which plants use for growth. When animals eat plants or when organisms die and decompose, carbon returns to the atmosphere or soil, completing the cycle. This exchange regulates Earth's climate and supports all life.