27. Photosynthesis II/CO2 Assimilation

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  • Опубліковано 24 січ 2025

КОМЕНТАРІ • 16

  • @mitocw
    @mitocw  3 роки тому +3

    The first half of this course, taught by Prof. Yaffe, is available on the MITx platform as 7.05x Biochemistry: Biomolecules, Methods, and Mechanisms. The videos below are from the second half of the course with Prof. Vander Heiden, which focuses on metabolism. The exception is Lecture 12, which is in the first half of the course and was taught by Prof. Vander Heiden. See ocw.mit.edu/7-05S20 for more information.

  • @shweta3098
    @shweta3098 Рік тому +2

    the lecture is by far one of the best. Reading mechanisms from book can be so dreadful, and the way he teaches the mechanism is almost magic.

  • @北漂龍
    @北漂龍 2 роки тому +2

    The lecture is amazing. A tricky puzzel can be that once the erythrose 4-phosphate reacts with F6P to produce sedoheptulose 7-phosphate and G3P, the cycle skips the requirement of sedoheptulose 1,7-bisphosphatase. An alternative path can be seen that E4P reacts with DHAP to produce sedoheptulose 1,7-BP, of which one phosphate is removed by SBPase.

  • @HighTimesTrader
    @HighTimesTrader 3 роки тому +10

    Just some of the world's most valuable information for free on UA-cam with only 2 comments and a couple dozen views 😂

  • @homosepian1234
    @homosepian1234 3 роки тому +2

    Great lecture Prof. yaffe, what about some PPT slides to replace the older slides shown during the lecture... this subject is super amazing and it would be a shame not to make the best illustrations possible - with color. Cheers and godspeed!

  • @salaheddinehouache1015
    @salaheddinehouache1015 3 роки тому +2

    To admit, this is the best lecture in plant science I've ever watched. Big thanks to you Mr Mathew and MIT crew behind the scene :) :) :)

  • @iot3136
    @iot3136 3 роки тому +1

    Thank you 🙏🏽 MIT. Great lecture, 👨‍🏫, and excellent 🎥 . 🤗

  • @LATIFAHMOHDNOR-zy1mq
    @LATIFAHMOHDNOR-zy1mq 7 місяців тому

    Page 144
    Dr. Melvin Calvin of the University of California was cited for his "research into carbon-dioxide assimilation in plants."

    • @LATIFAHMOHDNOR-zy1mq
      @LATIFAHMOHDNOR-zy1mq 7 місяців тому

      Using radioactive carbon 14 as his tracer, Dr. Calvin determined the exact course of the process by which plants use sunshine to turn carbon dioxide and water into sugar.

  • @maxwelladam3914
    @maxwelladam3914 9 місяців тому

    bro went crazy at the end

  • @cheungoilam8196
    @cheungoilam8196 Місяць тому

    So great I found u

  • @woloabel
    @woloabel Рік тому +1

    (On Sunday of March 19, 2023). On the Matter of Photosynthesis II and Carbon Dioxide (CO2) Assimilation on the Overall Topic of Biochemistry By PhD Matthew Vander Heiden: 1) Introduction to Photosynthesis and Light Reactions Therein (Photon Charging) in the 2) Chloroplast (Stroma, Thylakoid Membrane, Lumen) where Standard Reduction Potential Applies to Visible Light Ranges (680-700nm Wave Length); 3) Light Acceptors within the Chloroplast in Proteins of Complex Formation (Subunits Comparable to Mitochondrion Complexes but Specific to Photosynthetic Organism [Cyanobacteria to Plants]) and Comprising 1) Photosystem II (PS-II, a Photon Acceptors [Coupled to a Manganese Water Splitting Complex) through a 2) Q-Cylce (Proton Pumping First Site; QA to QB), 3) Cytochrome BF (Second Proton Pumping Site [Cyto BF]), 4) Plastocyanin (PC; Photon Acceptors), 5) Photosystem I (PS-I) and 6) Ferridoxin (NADP+ [Oxidized Cofactor] to NADPH [Reduced Cofactor]) where Delta Psi/Delta pH Potentiation And/Or Charging. Stroma-Side Dark Reactions Site of the 7) Fo Chloroplast to Fi Choroplast ATPase [ADP+ Phosphate Inorganic) to ATP] Energy Transduction Via Electron Transporting and Proton Potentiation by Photon Harvesting Modality is the Process of Overall Biological Energetics, as Plants Like Cynobacteria (Photosynthetic Primordials) are the Primary Food Producers of the So-Called Food Chain; Plants can Regulate Energy Biosynthesis via the Faculty of P700 (Protein particular to 700 nm Wavelength) and focus on ATP Exclusively without NADPH Regeneration by Cycling the Photon-Electron Excitation Within the PS-I Complex and back to Cyt bf-Plastocyanin. Dark Reactions are Characterized by Reactions of CO2 + NADPH to C(H2O)+ NADP+ (Oxidized Nicotinamide Adenine Dinucleotide Phosphate); or Glucose Biosynthesis where both ATP and ADP are Products Coupled to Glucose Biosynthesis; 4) Light Acceptors (C-Type Cytochromes, Bacteriochlorphylls Special Pair in A Matter of 200 ns, Bacteriochlorophylls [Accessory Pigments], Bacteriopheophytins [3 ps Time lapse], Quinon A [200 ps], to Quinon B [6 Micro-s]), ; 5) Reaction Center where Ribulose-6-Phosphate (From Ribose/Pentose) via Ribulose1,6-Bisphosphate Carboxylase/Oxigenase (RUBISCO) has Kinetics of importance; 6) The Calvin Cycle (Generation of 3-Phosphoglycerate from Carbon Dioxide (CO2) as in Gluconeogenesis on Non Photosynthetic Animalia (Fungus, Most of Monera); 1) Fixation (Carbon Dioxide [CO2] to 3-Phosphoglycerate (3-PG); 2) Reduction (3-Phosphoglycerate to Glucose [C6H12O6 Molecule]; and 3) Regeneration (Anaplerosis Therein) Reactions are the Essence of Chemistry in the Primary Food Producer in the So-Called Chain Therein; PhD Matthew Vander Heiden, es geht gut und eben noch besser auch aber man muss verbessert sich. Heil!

  • @fei4295
    @fei4295 2 роки тому

    wonderful

  • @souravranjanmohapatra5722
    @souravranjanmohapatra5722 2 роки тому

    Thank you sir.....

  • @nishantvermavlogs6548
    @nishantvermavlogs6548 2 роки тому +1

    I wish that the universe gives me an opportunity to study in this prestigious institution.....if not in this life then in another.....