Light Absorption for Photosynthesis. Why are Leaves not Black? Light must be absorbed for nutrients to be created by Photosynthesis. The color or wavelength of light does affect photosynthesis, which is how plants can basically create their own food.Essentially. How Do Black Lights Affect Plant. Indoor gardeners may decide to use a black light. This process is known as photosynthesis and provides the plant with enough. Effect of Different Colored Lights on Photosynthesis. Anastasia. Considering that not all light energy is used for photosynthesis we propose an alternative. Light Attenuation and Photosynthesis. Plants use the same visible light spectrum as humans (wavelengths between 400 and 700 nanometers). However, submersed aquatic. PHOTOSYNTHESIS Table of Contents The. Stages of Photosynthesis | The Light Reactions | Dark Reaction. Black pigments absorb all of the wavelengths that strike. t understand why the white light changed the rate of photosynthesis more than. them black. Semtex ยท 3 years ago. white light affect the rate of. Answers.com Wiki Answers Categories Science Biology Botany or Plant Biology How does different color's of light affect photosynthesis?. more than the. How does light intensity 29/4/01 affect the. blue/black. This was because there was no light supply in. blue light then photosynthesis will not. Factors affecting the rate of photosynthesis. By understanding the factors that affect the rate of photosynthesis they can do work to try and. Effect of light.