Select Page

Video: Photosynthesis

In this lecture, I cover the concept of Photosynthesis, the mechanism that plants use to produce energy and to make their food from the energy they obtain from the sun. It’s the process of converting LIGHT energy into CHEMICAL energy. ATP is produced in this process.

I also get into why we see different colors in terms of what wavelengths of light are being absorbed vs reflected. Lastly, I go through the 2 stages of Photosynthesis: The light-dependent and light-independent reactions, with some custom animations to illustrate the steps of those reactions.

This is part Chapter 9 in the textbook Biology: The Dynamics of Life, which is the chapter on Energy of the Cell.


  • What is Photosynthesis?
  • Where Photosynthesis Happens
  • Color: How it works
  • The two Phases of Photosynthesis

About The Author

Leslie Samuel

Leslie Samuel is the creator of Interactive Biology. His mission is to use this site to Make Biology fun for people all over the world.

Struggling in Biology?

Are You Premed?

Confused about the MCAT? Not sure how to prepare? This guide will show you how