Pigments

Pigments are colourful molecules that absorb light and absorb colour. Different pigments have different wavelengths of light that they absorb.

With biology in our lives, we have the opportunity to study and understand everything there is to know about plants, animals, humans, and pretty much anything else! One of the many fascinating topics among the different pigments is chromogenic pigments.

Are you interested in finding out more about them? Let’s get this party started. So, what exactly are pigments? This is one of the most fundamental questions that will arise in your mind. They are biochromes or compounds that are created by any living thing that has the ability to produce colour, such as bacteria. Colour pigments are another term for these substances. Plant pigments and flower pigments are the two major types of pigments that can be distinguished. The green pigment found in plants is the most common pigment that you can see in your environment on a daily basis.

Pigments: an overview

To define pigments, think of a collection of chemicals that have a bright colour and are utilised in the colouring of various types of other materials. These colouring chemicals are also referred to as Biological Pigments or Biochromes, which refers to the actual pigments in the most general sense. These biological pigments are insoluble in water and are used in conjunction with liquids in the form of powdered particles in solid form. There are many different types of biological pigments that can be found in both plants and animals.

The pigments are created by living creatures and have a colour as a result of the colour absorption procedures used to create the pigments’ colour. There are two different sorts of pigments, each of which is categorised according to where it comes from.

Organic pigments 

Organic pigments are derived from a variety of different natural sources.

Inorganic pigments 

The inorganic pigments, also known as synthetic pigments, are created from coal tars and other types of petrochemicals, and are used in a variety of applications. In some rare instances, these colours can also be created using a simpler sort of chemical reaction known as oxidation, which is less complicated than other methods.

Pigments are chemical molecules that exhibit wavelengths of visible light, giving them a vibrant appearance when illuminated by light. A specific form of pigment is found in plants, flowers, algal blooms, certain photosynthetic bacteria, and even the skin of animals. These pigments not only offer colour, but they also have the potential to absorb certain wavelengths of light.

Photosynthesis is a process in which plants capture light energy and turn it into sugars. This is a characteristic that distinguishes them from other living things. The process begins with the absorption of light energy by a specific kind of organic molecules known as pigments, which are then converted into heat. Photosynthetic pigments, such as chlorophyll, are required for photosynthesis, a biological activity that also necessitates the presence of other forms of yellow and red coloured pigments.

Another group of vital plant pigments includes anthocyanins, betalains, carotenoids, porphyrins, and a plethora of other compounds. By reflecting wavelengths of light, all of these pigments help to speed up the process of chemical reactions.

Chlorophyll

In all green plants, chlorophyll is a main pigment found in the plant cells that serves as a source of food for the plants. This is due to the presence of a pigment known as chlorophyll in the plant’s leaves and delicate part of the stem, which gives the plant its green colour. The chlorophyll pigment is one of the most important and crucial pigments in the plant’s photosynthesis process, and it is responsible for a major portion of the process.

Carotenoids

Carotenoids are pigments that appear in the colours of orange, red, and yellow when exposed to light. These compounds are insoluble in water and are firmly adhered to the membranes of the cells’ body structures. These biomolecules are antioxidants that help people maintain good eyesight by preventing damage to the retina.

Anthocyanins

Anthocyanins are a type of flavonoid pigment that can be found in abundance in all of the tissues of the upper group of plants, including their fruits. This pigment serves a functional purpose by imparting colour to the stem, leaves, roots, fruits, and flowers of the plant. These types of pigments appear in a variety of colours depending on their pH, including red, blue, purple, and other dark hues.

Flavonoids

Flavonoids are a type of yellow-coloured pigment that can be found in abundance in citrus fruits such as lemons, grapefruit, and oranges, as well as in some ark and yellow-coloured flowers. This type of pigment is primarily found in the plastids and cytoplasm of the plant cell, where it plays an important role in photosynthesis. Flavonoids are molecules that have antioxidant characteristics and can aid in the reduction of cholesterol levels in the body.

Flavonoids have a variety of other applications, including:

  • They are extracted and used as dyes in many applications.
  • These pigments, such as lycopene and astaxanthin, are used as dietary supplements in a variety of food products, including most fruits and vegetables.

Conclusion

Green pigment in plants known as chlorophyll is one of the most important components that plants require in order to prepare their food for consumption. In order for plants to carry out photosynthesis and prepare their food, the absorption of light that results in the generation of the green pigment is essential to their survival.

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Frequently asked questions

Get answers to the most common queries related to the NEET UG Examination Preparation.

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