Action Spectrum Explained

The lights we see consist of various wavelengths and light has a comprehensive relationship with plants. Plants will either absorb or reflect the different colors of the light spectrum. This absorption or reflection affects the process of photosynthesis that will determine how your plants process their food. So, let’s begin.

Both absorption spectrum and action spectrum play a significant role in the plant process of photosynthesis. Let’s go further by looking at what these two entails and discuss more details on them. 

Absorption And Action Spectrum

An action spectrum is an illustration that reveals the rate of photosynthesis at various light wavelengths.

What Is An Action Spectrum?

The action spectrum of photosynthesis in any given plant will indicate high light absorption for red or violet and orange or red color spectrum.

Photosynthesis Action Spectrum

The absorption spectrum will indicate all the colors of light absorbed by a given plant. It describes the electromagnetic radiation range of plant absorption. It relies on the cellular and molecular structure of a plant.

Absorption Spectrum

The pigment is a common name used for a molecule that takes in or absorbs light with color. These plant pigments give rise to leaves.


This pigment is one of the most important in plants because it is directly involved in the plants’ photosynthesis.


They are accessory pigments. Even though plants can’t photosynthesize with carotenoids, this pigment can still transfer the light energy they get down to chlorophyll.


This pigment plays a crucial role in the reproduction of plants. It as well helps by attracting pollinators and seed disperses. They are, however, not directly involved in the photosynthesis process.


Chlorophyll is a type of pigment and in nature, we have 6 types of chlorophyll. However, in plants, there are 2 major types of chlorophyll which are chlorophyll A and chlorophyll B.

Absorption Spectrum Of Chlorophyll

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