Plant pigment molecules absorb only light in the wavelength range of 700 nm to 400 nm; this range is referred to as photosynthetically-active radiation. Violet and blue have the shortest wavelengths and the most energy, whereas red has the longest wavelengths and carries the least amount of energy.

chlorophyll

Chlorophyll a

Plant pigments are classified into four main categories: chlorophylls, anthocyanins, carotenoids, and betalains. They account for most of the naturally derived colors from plants.

In conclusion, plant leaves are green because green light is less efficiently absorbed by chlorophylls a and b than red or blue light, and therefore green light has a higher probability to become diffusely reflected from cell walls than red or blue light. Chlorophylls do not reflect light.

The primary photosynthetic pigment is chlorophyll which uses energy from light to excite electrons. The carotenoids are accessory pigments that “channel” more captured light energy to the chlorophyll….

Multiple pigments allow the plants to have different colors of leaves, which allows them to capture the maximum amount of energy from the sun.

Generally, heat stress of a plant will show itself by wilting, which is a sure sign that water loss has taken place. If this is ignored, the condition will worsen, as the plants will eventually dry up, turning a crunchy brown before dying. In some cases, yellowing of the leaves may occur.

glucose

what are the two main functions of pigments other than chlorophyll in green plants? Dear student. Carotenoids and anthocyanin are necessary pigments other than chlorophyll, which is required for photosynthesis in some plants.

In the diagram below, you can see the absorption spectra of three key pigments in photosynthesis: chlorophyll a, chlorophyll b, and β-carotene.