Enzymes topical past papers paper 1 (part 1) - AS Level Biology

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  • Опубліковано 28 вер 2024

КОМЕНТАРІ • 24

  • @ayeshatahir2170
    @ayeshatahir2170 9 місяців тому

    I cannot thank you enough for these videos. I have learnt a lot from your videos... Keep making these videos and iA you will see your yt channel will grow because the content your produce is high quality!!!!
    Much appreciated!!!!

  • @Syeda_Fizzah_Azeem
    @Syeda_Fizzah_Azeem 11 місяців тому +4

    Plz sir never stop doing this... This channel is my hope after Allah

  • @FalconEye2015
    @FalconEye2015 Рік тому +1

    can you do a topical series on ch4 paper 2. literally 0 videos on youtube

  • @fatemakhatunnoon7717
    @fatemakhatunnoon7717 Рік тому +1

    SIR THANK YOU SO SO SO MUCHHHHH

  • @agate5177
    @agate5177 Рік тому

    What exam board is this?

  • @hareemsana9544
    @hareemsana9544 Рік тому +1

    sir ap please o levels kai biology and chemistry may/june 2023 kai according topics parha dain please...

  • @fatemakhatunnoon7717
    @fatemakhatunnoon7717 Рік тому +2

    PLEASE KEEP UPLOADING VIDEOS SIR, THANK YOU SO MUCHHH SIR

  • @ILOVEALLAHHHHH
    @ILOVEALLAHHHHH Рік тому +2

    Amazing videos!!! Can you please make videos in urdu??? Please

    • @dr.umarmemon3161
      @dr.umarmemon3161  Рік тому +2

      Hey dear. Most students understand English easily. If you have any queries you can email me and I will pass on my WhatsApp number. I can explain your queries there in urdu.
      Best of luck!!

  • @saitama1353
    @saitama1353 3 місяці тому

    It's a good video but at
    10:55 , you explained wrong when you said that enzyme working with lock and key hypothesis is not affected by the non competitive enzyme ,
    Non competitive enzymes attach to sites of enzyme other than active site and alter the shape of active sites making them less complementary to the substrate
    So
    Both enzymes the one working with induced fit and the other working by lock and key are affected to the same extent by the non competitive enzyme
    Thus the statement 2 is wrong due to the explanation that both enzymes are affected at same extent

    • @dr.umarmemon3161
      @dr.umarmemon3161  3 місяці тому

      No dear, an enzyme which follows lock and key hypothesis is rigid and doesn’t change shape easily. So non-competitive inhibitor has little effect on this type of enzyme.
      Whereas enzyme with induced fit is flexible and changes shape easily so non-competitive inhibitor has great effect.
      The effects to both enzymes are not to the same extent.

  • @ismailqamar8583
    @ismailqamar8583 Рік тому +2

    Ty❤

  • @lavitakumari4282
    @lavitakumari4282 Рік тому +2

    It of A and O level

  • @alilmspeaks
    @alilmspeaks Рік тому +1

    why statement 2 of q 31 is false?
    plz explain...sir

    • @dr.umarmemon3161
      @dr.umarmemon3161  Рік тому

      If enzyme is working by induced fit model, it will be flexible and will active site will easily change shape when non-competitive inhibitor binds. So this enzyme will be more affected by non-competitive inhibitor.
      If enzyme works by lock and key hypothesis, it’s rigid, binding of non-competitive inhibitor will not be able to change the shape of active site. There will be little or no affect on enzyme.

    • @alilmspeaks
      @alilmspeaks Рік тому

      thanks sir its cleared now
      @@dr.umarmemon3161

    • @alilmspeaks
      @alilmspeaks Рік тому

      Sir I am prepairing IMAT Exam which is approximatly similar to BMAT exam Any suggestions you want to give.
      Please,.......@@dr.umarmemon3161

  • @user-go9bs2ib3u
    @user-go9bs2ib3u 10 місяців тому

    very helpful video sir thank you for uploading

  • @laibaimtiaz114
    @laibaimtiaz114 Рік тому

    Kindly make more videos on past papers solution

  • @lavitakumari4282
    @lavitakumari4282 Рік тому

    Sir simple pmc ki preps k lige ye mcqs prhny ki need tou nh hai na

  • @enacausmembrane
    @enacausmembrane Рік тому

    where is part 2?