They are yellow, orange and red colour pigments. Overview and Key Difference 2. What is Chlorophyll 3. What is Carotenoids 4. Similarities Between Chlorophyll and Carotenoids 5. Chlorophyll is a group of green colour pigments present in plants and other photosynthetic organisms.
In fact, chlorophylls are the primary pigments of photosynthetic organisms including plants and algae. These pigments are capable of capturing light energy from sunlight and produce carbohydrates. Generally, this family has several types of chlorophyll pigments such as chlorophyll a, b, c and d.
Among the several types of chlorophyll pigments, chlorophyll a and b are the most common pigments that mainly involve in the photosynthesis. Chlorophylls absorb yellow and blue colour wavelengths from the electromagnetic radiation and reflect green. Hence, they are visible to us in reflecting colour that is green. Structurally, chlorophyll molecule contains a porphyrin ring composed of carbon, hydrogen, nitrogen and oxygen molecules surrounding a central metallic ion; the magnesium.
Yellow, orange and red colours that we see in everywhere are due to the pigments called carotenoids. They are the chemical compounds that reflect these colours.
Also, there are two main types of carotenoids; namely, they are the carotenes and xanthophylls. Carotenes are the orange to yellow colour pigments while xanthophylls are the yellow colour pigments.
The typical colour of carrots is due to the beta carotenes that it contains. On the other hand, the typical colour of tomato is due to the lycopene which is another carotenoid pigment. Structurally, carotenoids contain two small six carbon rings and a long carbon chain. These elements are built around the central metallic ion magnesium. Chlorophylls absorb yellow and blue colour wavelengths from the electromagnetic radiation and reflect green.
So, this is the reason why they are visible in green colour. Bacteriochlorophyll is a photosynthetic pigment found in prokaryotic photosynthetic bacteria or phototrophic bacteria. In contrast, chlorophyll is a photosynthetic pigment found in plants, algae and cyanobacteria.
Therefore, this is the key difference between bacteriochlorophyll and chlorophyll. Moreover, another significant difference between bacteriochlorophyll and chlorophyll is that the bacteriochlorophylls participate in anoxygenic photosynthesis; hence, it does not produce oxygen. On the other hand, chlorophylls participate in oxygenic photosynthesis and produce oxygen.
Also, there are four types of chlorophylls while there are seven types of bacteriochlorophylls. Bacteriochlrophyll and chlorophyll are two types of natural pigments. In fact, they are photosynthetic pigments. Bacteriochlorophylls are found in phototrophic bacteria or anoxygenic phototrophs such as purple bacteria, heliobacteria and green sulfur bacteria, etc.
Meanwhile, chlorophylls are found in oxygenic phototrophs such as plants, algae and cyanobacteria. Also, there are four types of chlorophylls, while there are seven types of bacteriochlorophylls. So, this is the difference between bacteriochlorophyll and chlorophyll. Green plants make their own food through the process known as photosynthesis. This process uses a pigment known as chlorophyll. The pigment is a molecule that has the ability to absorb light at various wavelengths based on colour.
While there are various pigments, chlorophyll is distinctive in its ability to allow plants to absorb the energy to build tissues. Chlorophyll is situated in chloroplasts. The main job of chlorophyll in plants is to absorb light through sunlight. The light absorbed is transferred in two forms of energy-storing molecules. During the process of photosynthesis, plants use the gathered energy to convert water and carbon dioxide into glucose.
Along with glucose, plants use nutrients derived from soil to develop parts like leaves. The green colour of the plants is given by chlorophyll as it does not absorb the green wavelengths of white light. Chloroplast is defined as an organelle that encompasses the photosynthetic pigment, chlorophyll which collects sunlight and converts it to energy.
It is found in all green plants as well as algae. They are situated in the guard cells in the leaves. And contain a high amount of chlorophyll. Chloroplast contains its own DNA and can independently reproduce. Additionally, it also develops lipids and amino acids needed to create the membrane of the chloroplast. All higher plants contain chloroplast. It is biconvex or oval in shape and located within the mesophyll of the plant cell.
Chloroplast is defined as a double-membrane organelle that contains inner, outer, and intermembrane space.
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