Thekey difference在叶绿素A和B之间是叶绿素A是植物中的主要光合色素，algaewhile the chlorophyll B is an accessory pigment that collects energy and passes to chlorophyll A.
Chlorophyll is a family of natural pigments that are present in plants and algae and is responsible for their green colour. Chlorophyll absorbs energy from sunlight and makes use of this energy to synthesize carbohydrates from water and carbon dioxide. It is the process calledphotosynthesisthat sustains life processes in all plants as their energy requirements are met through this process. Furthermore, photosynthesis is the prime process that sustains all living organisms since plants are the primary producers of all food chains. Animals and humans consume products of plants. In the chlorophyll pigment family, there are several types of chlorophyll pigments. Among them, chlorophyll A and chlorophyll B are two types of chlorophylls. They have a similar structure with a slight difference in the porphyrin ring. Chlorophyll A has CH3卟啉环中的基团在卟啉环中具有CHO（醛组）。
Chlorophyll A is the primary photosynthetic pigment present in plants and algae. It is the most widely distributing type of chlorophylls. It is a greenish colour pigment, which is able to capture energy from sunlight and produce foods in光自人营养。有两种类型的光系统涉及光反应。
但是，其卟啉环包含一个CHO组，该基团在叶绿素A中不存在。光系统i。Compared to chlorophyll A, chlorophyll B is less abundant. Furthermore, chlorophyll B is more soluble in polar solvents than the chlorophyll A. It primarily absorbs blue light.
What are the Similarities Between Chlorophyll A and B?
- Chlorophyll A and B are two types of chlorophylls which are green colour pigments.
- Both involve in photosynthesis.
- Also, both are able to absorb energy from sunlight.
- Furthermore, both are present in photosynthetic organisms, especially in green plants and algae.
Chlorophyll A is the most abundant universal type of greenish colour chlorophyll pigment present in plants, algae and cyanobacteria. Thus, it is the primary photosynthetic pigment which absorbs light from red, blue and violet wavelengths and reflects green. Likewise, chlorophyll A is present within the reaction centres of both photosystems. On the other hand, chlorophyll B is an accessory pigment which collects energy and hand over to chlorophyll A. Therefore, this is the key difference between chlorophyll A and B.
Also, there is a difference between chlorophyll A and B in their structure. Chlorophyll A contains CH3side groups attached to porphyrin ring while chlorophyll B has a CHO group attached to the porphyrin ring. More description about the difference between chlorophyll A and B is given in the below infographic.
概括– Chlorophyll A vs B
In brief, Chlorophyll A and B are two types of green colour pigments of chlorophyll family. Chlorophyll A is the primary photosynthetic pigment while the chlorophyll B is an accessory pigment. On the other hand, Chlorophyll B collects energy and passes to chlorophyll A for exciting. Thus, this is the key difference between chlorophyll A and B. Furthermore, they have a small difference in their structures such as chlorophyll B has an aldehyde group attached to porphyrin ring unlike in chlorophyll A.