What Is the Sun's Role in Photosynthesis?

The sun's role in photosynthesis is central.
••• Jupiterimages/Comstock/Getty Images

Photosynthesis is the method by which plants turn light into food, and the sun has a vital role in this process. Without sunlight, plants would not be able to live and there would be no oxygen for people to breathe.

Significance

Without the sun, photosynthesis could not take place. The sun provides the initial energy that starts the cycle of photosynthesis, which converts this sun energy into food for plants.

Method

Along with sunlight, water and carbon dioxide are necessary for photosynthesis. A chemical reaction happens inside the chloroplasts of the plant cells, turning light, water and carbon dioxide into sugar, or carbohydrates, and oxygen.

Fun Fact

Human beings breathe oxygen and exhale carbon dioxide. Plants "breathe" carbon dioxide and "exhale" oxygen, which humans breathe.

Related Articles

Effects of Visible Light Radiation
How Does Photosynthesis Affect the Atmosphere of the...
The Differences Between Photosynthesis & Respiration
How Do Plants Store Energy During Photosynthesis?
How Does Photosynthesis Affect the Atmosphere of the...
Importance of Aerobic Cellular Respiration
What Is Reduced & Oxidized in Photosynthesis?
What Provides Electrons For the Light Reactions?
Organelles Involved in Photosynthesis
Test Your Knowledge on Middle School Science
What Is Nadph in Photosynthesis?
How Are Photosynthesis & Cellular Respiration Related?
How Does Photosynthesis Work in Plants?
How Do Plants Make Their Own Food?
What Is the Photosynthesis Equation?
Materials Needed for Photosynthesis
How Does a Plant Convert Light Energy to Chemical Energy?
Why Do Plants Need the Sun?
What Are the Elements of Uranus?
What Is PQ, PC, & FD in Photosynthesis?

Dont Go!

We Have More Great Sciencing Articles!