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| Name | Photochemical and biosynthetic phases | Photosystem I and II |
| Video Uploader | Video From Mercy Education media |
| Upload Date | This Video Uploaded At 08-08-2020 02:30:02 |
| Video Discription | The pigments involved in photosynthesis are called photosynthetic pigments. They are chlorophyll ‘a’, chlorophyll ‘b’, carotenoids, xanthophyll and phycobilins. Magnesium is an essential component for the formation of chlorophyll. Chlorophyll ‘a’ is a universal pigment present in the plants in which water is one of the raw materials for photosynthesis. Chlorophylls are highly efficient in absorbing solar energy and they are directly linked to photosynthetic electron transport. Photosynthetic pigments other than chlorophyll ‘a’ are generally called accessory pigments eg. chlorophyll ‘b’, carotenoids and xanthophyll, whereas chlorophyll ‘a’ is regarded as primary pigment. Photosynthetic pigments occur in the granum. They constitute the pigment system called photosystem. About 250 to 400 pigment molecules are present in a photosystem. Two types of photosystems are found in the granum. Photosystem I (PS I) has less accessory pigments and more chlorophyll ‘a’, while photosystem II (PS II) has more accessory pigments and less chlorophyll ‘a’. The primary function of photosystems is to trap light energy and converts it to chemical energy. The energy absorbed by accessory pigments is transferred to the chlorophyll ‘a’. The granal lamella where the photosynthetic pigments are aggregated to perform photosynthetic activities is called active centre. Disclaimer This channel does not promote or encourage any illegal activities. All contents provided by this channel for general and education purpose only. Copyright disclaimer under section 107 of the copyright act 1976,allowance is made for "fair use policy" for purposes such as criticism, comment, news reporting,teaching,scholarship and research. Fair use is a use permitted by copyright statute that might otherwise be infringing. Non-profit, educational or personal use tips the balance in favor of fair use. |
| Category | Education |
| Tags | calvin cycle | photosystems | ps i and ps ii | photosystem i vs photosystem ii | ps 1 vs ps 2 | pnat physiology video | definition photosystem | biologyexams4u videos | photosynthesis | difference between | photosystem summary | photosynthetic pigments | chlorophyll ‘a’ | chlorophyll ‘b’ | carotenoids | xanthophyll | phycobilins | chlorophyll | photosynthetic electron transport | Photochemical and biosynthetic phases | accessory pigments | primary pigment | pigment | active centre |
