Cyclic and noncyclic photophosphorylation

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For access to all my videos, take a quick look at my website www.biologycarol.co.uk. There's a freebie on there - a fully updated 'How to improve your grade up to an A*' - so do grab that at least! • For a really quick explanation about my website and videos spend 2 minutes watching my channel trailer • Channel trailer - website news with s... • INTRODUCTORY OFFERS! • £25 would buy you a year's subscription to ALL my AS videos (1/2 hour of private tuition) PLUS 25% next year's subscription when you'll need access to ALL the videos. • £50 would buy you a year's subscription to ALL videos (1 hour of private tuition) • AND if you buy either of these you get the opportunity to earn 10% commission on any of your friends' purchases (using a personalised link that you can share). You could end up making a profit on subscribing! • Following this Livestream, I've refilmed this video (including me going through exam questions) for my website - its now even better! • For those of you with this level of detail in your syllabuses (definitely OCR A, Edexcel B and Eduqas. Not required for AQA - other syllabuses, double-check with teachers). • Firstly, the roles of the Light Dependent (LD) and Light Independent (LI) reactions in photosynthesis are summarised and the 'shopping list' of substances produced by the LD reactions is given. I then describe the general structure of photosystems (PS) and how they work, explaining the difference between PSII and PSI. The absorption spectra of the different photosynthetic pigments are described and explained, as well as the overall action spectrum for photosynthesis. Finally the processes of non-cyclic and cyclic photophosphorylation are covered and then compared and contrasted.

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