A2 Biology - Calvin cycle: The light-independent stage (OCR A Chapter 17.3)

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  • เผยแพร่เมื่อ 25 ธ.ค. 2024

ความคิดเห็น • 51

  • @blackghost4823
    @blackghost4823 4 ปีที่แล้ว +44

    I adore your channel
    my results came out today and they were amazing solely and I am not even exaggerating bcz of you
    thank you so much

  • @nariamaayumu1251
    @nariamaayumu1251 4 ปีที่แล้ว +37

    i love your channel, you inspire me in so many ways :) please don't stop your videos, you help many souls like me. you're so awesome and keep being you!

    • @BioRach
      @BioRach  4 ปีที่แล้ว +3

      Thank you for your kind words :)

  • @Twenteen2
    @Twenteen2 ปีที่แล้ว +4

    Exam in 1 hour, hopefully this is the last of your videos ill have to watch, tysm for making so many amazing videos

  • @kinojohn4256
    @kinojohn4256 6 ปีที่แล้ว +20

    You are a godsend! Thank you so much for these videos. I look forward to seeing more.

    • @BioRach
      @BioRach  6 ปีที่แล้ว +2

      I'm glad you find them helpful! :D I'll try my best to make more soon, keep checking back :) Thanks for watching!

    • @lukeb6341
      @lukeb6341 4 ปีที่แล้ว

      @@BioRach Are you American or English? lol

    • @oliverperryman7953
      @oliverperryman7953 ปีที่แล้ว +2

      ​@@lukeb6341 English surely, she's using the ocr exam board 💀💀

  • @nifemi1137
    @nifemi1137 2 ปีที่แล้ว +1

    I’m honestly so grateful for your channel Rachel !!! Lots of of love

  • @jessicah2809
    @jessicah2809 6 ปีที่แล้ว +104

    I thought GP and TP were both 3-carbon molecules?

    • @BioRach
      @BioRach  6 ปีที่แล้ว +78

      Yes you are correct. I should've make it clear in the video that it should be two GP and two TP made. At A-level, you wouldn't be asked to know the structures of them, so I simplified into the total number of carbons in each "section", but not the best thing. Thanks for watching and pointing that out! :)

  • @gracexo753
    @gracexo753 8 หลายเดือนก่อน

    Thank you so much! Had to teach myself this whole topic and this literally saved me

  • @rahrah7723
    @rahrah7723 4 ปีที่แล้ว +45

    The scratchy marker sound makes me uneasy but love this video overall thank you.

  • @mohammedkhalid5577
    @mohammedkhalid5577 2 ปีที่แล้ว +1

    Thank You so much (:
    Literally the easiest explaination to this topic.

  • @jaskaurd34d57
    @jaskaurd34d57 ปีที่แล้ว +1

    I love you so much, you explain everything so well

  • @maxblenkiron1662
    @maxblenkiron1662 2 ปีที่แล้ว +1

    banging stuff. sam if you see this thanks for the suggestion my guy

  • @shalomtusubira8200
    @shalomtusubira8200 8 หลายเดือนก่อน

    Thank you bio rach I finally understood this! 5 weeks before exams 😅

  • @adityaiyer801
    @adityaiyer801 2 ปีที่แล้ว +7

    Wouldn't RuBP combine with CO2 to create an unstable 6 carbon intermediate, that breaks into 2 3 carbon Glycerate-3-phosphate molecules?

    • @BioRach
      @BioRach  2 ปีที่แล้ว +6

      Yes you're right! It was my mistake in the video. Also TP is a 3C molecule in the same logic.

  • @skyeaxford7234
    @skyeaxford7234 2 ปีที่แล้ว +2

    Ur a star love -ZK

  • @tahatariq263
    @tahatariq263 ปีที่แล้ว

    You are amazing, I really like the way you explain to the point by drawing and explaining each step 👍💯

  • @akindeleoluwanifemivictor8612
    @akindeleoluwanifemivictor8612 5 ปีที่แล้ว +5

    fascinating.

    • @BioRach
      @BioRach  5 ปีที่แล้ว +4

      Haha it is an interesting topic. Thanks for watching! :)

  • @TheBullsBaller
    @TheBullsBaller 5 ปีที่แล้ว +11

    With the transition from TP to RuBP you said that when ATP was converted to ADP and Pi that the Pi remained, isn't it bonded with the TP to make RuBP (BIphosphate) therefore you should write ATP > ADP

  • @darkphantom2854
    @darkphantom2854 5 ปีที่แล้ว +3

    Thank you very much.

    • @BioRach
      @BioRach  5 ปีที่แล้ว

      Thanks for watching :D

  • @zaynaba6626
    @zaynaba6626 5 ปีที่แล้ว +3

    super helpful again thanks

    • @BioRach
      @BioRach  5 ปีที่แล้ว +1

      Thank you for watching :D

  • @kittywonghiuyee
    @kittywonghiuyee 6 ปีที่แล้ว +5

    i learn much from your video:)

    • @BioRach
      @BioRach  6 ปีที่แล้ว +1

      Glad it helps you! :D

  • @mohammadqasimawais9155
    @mohammadqasimawais9155 3 ปีที่แล้ว +3

    Is this a revision or a regular class? Cause it took my teacher a month for this chapter.

    • @BioRach
      @BioRach  3 ปีที่แล้ว +3

      It's mainly revision, though hopefully I've explained it in a way that it's easy enough to understand in the first few rounds. It is a complicated topic so taking more time to go through it will be beneficial! :)

  • @gamingspotlight6194
    @gamingspotlight6194 3 ปีที่แล้ว

    So would the first 3C phosphorylated sugar produced be GP or TP?

    • @visamkhan8916
      @visamkhan8916 2 ปีที่แล้ว

      The first 3C phosphorylated sugar will be TP. Gp is also a 3C molecule but its not a carbohydrate.

  • @ravjayakodi2746
    @ravjayakodi2746 11 หลายเดือนก่อน

    what happens to the lost carbon going from TP to Rubp?

    • @BioRach
      @BioRach  11 หลายเดือนก่อน

      TP does not immediately turn into RuBP. It will stay stable until there are other TP molecules are made to react together to either make organic molecules (eg. Glucose), or regenerate RuBP.

    • @BioRach
      @BioRach  11 หลายเดือนก่อน

      So for example, two TP molecules can make one hexose sugar.
      Once there are 5 TP molecules, then they'll react to make 3 RuBP molecules.

  • @Charlotte-hf5jz
    @Charlotte-hf5jz 11 หลายเดือนก่อน

    how has TP been regenerated to form RuBP if it’s 3x2C and RuBP is 5C?

    • @BioRach
      @BioRach  11 หลายเดือนก่อน

      They will need 5 TP to be made in order to regenerate 1 RuBP.

    • @Charlotte-hf5jz
      @Charlotte-hf5jz 11 หลายเดือนก่อน

      @@BioRach thank you so much for responding! do you mean 3 RuBP to balance the amount of carbons?

  • @kayenatafzal8845
    @kayenatafzal8845 4 ปีที่แล้ว

    where does this stage happen? in the thylakoid membrane like light dependant?

    • @alexandra-uf5qg
      @alexandra-uf5qg 4 ปีที่แล้ว +2

      In the stroma

    • @blackghost4823
      @blackghost4823 4 ปีที่แล้ว +2

      light independent whuch happens in the stroma but the process uses products NADPH and ATP from the light dependent reaction which happens at the thylakoid membrabe

  • @igmaanav.6959
    @igmaanav.6959 6 ปีที่แล้ว +3

    Good haah!!

    • @BioRach
      @BioRach  6 ปีที่แล้ว +1

      Thanks for watching! :)

  • @krishankumar1569
    @krishankumar1569 6 ปีที่แล้ว

    or aaha banao

  • @alantheunicorn6362
    @alantheunicorn6362 5 ปีที่แล้ว +11

    why is a 10 year old teaching me A level biology.