A Level Biology Revision "Pressure Changes during the Cardiac Cycle"

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  • เผยแพร่เมื่อ 2 ธ.ค. 2024

ความคิดเห็น • 27

  • @sugarcrane7982
    @sugarcrane7982 หลายเดือนก่อน +1

    if every single student finds this channel grade boundaries would be impossibly higher than ever

  • @somebodyidek6997
    @somebodyidek6997 2 ปีที่แล้ว +24

    thank you so much, I have my exam tomorrow and it really cleared a lot of last minute doubts.

  • @winyimathew2708
    @winyimathew2708 ปีที่แล้ว +6

    greatest site ever found for myself aiming and now seeing an A

    • @keira5034
      @keira5034 8 หลายเดือนก่อน +1

      how r ur results?

  • @NKDSub
    @NKDSub 2 ปีที่แล้ว +3

    Hi sir 🇨🇭it’s nice to watch your videos again after a long time and I’ve been curious about when you would finish making a level biology videos

    • @Freesciencelessons
      @Freesciencelessons  2 ปีที่แล้ว +3

      Thanks. I'm around 40% of the way through A level Biology and hope to finish by the end of 2023.

  • @MacnBTCshorts
    @MacnBTCshorts 2 ปีที่แล้ว +6

    Good afternoon sir, please can you answer a question that I have : have you finished all the a level chemistry specification? Because I'm making notes on each topic and if there is anything more coming, I will have to leave pages out to write it in my notebook ☺️thank you so much for everything! I only used your videos for gcses and now I'm able to do a level chemistry and biology!!

    • @Freesciencelessons
      @Freesciencelessons  2 ปีที่แล้ว +5

      I'm about 40% of the way through A level Chemistry. I hope to be finished by the end of 2023.

  • @beinghuman4576
    @beinghuman4576 2 ปีที่แล้ว +5

    Pls record more videos for alevel students.
    Love from Pakistan 💝💝

  • @Moaptw
    @Moaptw 2 ปีที่แล้ว +2

    thanks and wonderful video

  • @studyaccount7677
    @studyaccount7677 2 ปีที่แล้ว +2

    hi sir, What would you say is the easiest exam board for a level chemistry and a level biology in terms of exam questions and content?

    • @Freesciencelessons
      @Freesciencelessons  2 ปีที่แล้ว +2

      I can't really answer that I'm afraid as it depends on the student. They're supposed to be equivalent. I've always taught at lot of OCR for A level and I've always found them very fair in the questions.

  • @notme2472
    @notme2472 2 ปีที่แล้ว +5

    hi sir, have u made videos for all the a level chemistry course and if not when will it be ready??

    • @MacnBTCshorts
      @MacnBTCshorts 2 ปีที่แล้ว +1

      I wanna know the same 😭

    • @Freesciencelessons
      @Freesciencelessons  2 ปีที่แล้ว +1

      I'm about 40% of the way through A level Chemistry. I hope to be finished by the end of 2023.

  • @christmas9259
    @christmas9259 ปีที่แล้ว

    Sir, I’m confused
    May I ask how does the pressure of the atria and ventricles increase, if their filing with blood?
    Shouldn’t it decrease because they have a higher volume of blood?

    • @Freesciencelessons
      @Freesciencelessons  ปีที่แล้ว +1

      The pressure depends on the volume of blood in the chamber. So although the pressure is initially low, as the blood starts filling the chambers, the pressure increases.

    • @OmniversalInsect
      @OmniversalInsect ปีที่แล้ว +5

      I think the blood itself exerts pressure on the atrium and ventricle walls.

  • @YANITED199
    @YANITED199 2 ปีที่แล้ว +5

    The GOAT

  • @sugarcrane7982
    @sugarcrane7982 หลายเดือนก่อน

    thank youuuuu

  • @grucci7068
    @grucci7068 2 ปีที่แล้ว +1

    hello sir, do you happen to make a level physics videos? they would be incredibly helpful

    • @Freesciencelessons
      @Freesciencelessons  2 ปีที่แล้ว +6

      Hi. I'm afraid that I've never taught A level Physics so I don't think I would do a good job.

    • @grucci7068
      @grucci7068 2 ปีที่แล้ว +9

      @@Freesciencelessons thanks sir, no worries, love you xo

  • @rubanight
    @rubanight 6 หลายเดือนก่อน

    Studying this in O levels😕

  • @lysandogva3705
    @lysandogva3705 2 ปีที่แล้ว +1

    first