Bacterial cell wall structure

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  • Опубліковано 20 вер 2024
  • This video describes the basic structure of a bacterial cell wall. All bacteria cells have at least a few, if not many, layers of peptidoglycan. In it, sugars are linked together in multiple rows. Protein cross-links (vulnerable to antibiotic action) connect the layers. Lysozyme can break the sugar connections. Gram negative bacteria have an outer lipid layer in addition to peptidoglycan layers. Most bacterial pathogens have capsules to prevent phagocytosis and potentially to aid in adherence and invasion. www.sciencewithsusanna.com has diagrams, notes, and practice questions.

КОМЕНТАРІ • 63

  • @reninguyen2519
    @reninguyen2519 8 років тому +15

    i wasnt able to understand the diagram in my textbook. but when i saw your video. and you explained it really well thank you. I was able to understand it.

  • @sinosizokhanyile4540
    @sinosizokhanyile4540 2 роки тому +1

    I wasn't understanding it in my textbook but you just did magic within 12 mins thank you so much, god bless

  • @valcheung5747
    @valcheung5747 4 роки тому +1

    In the picture, you drew capsule at the wrong position. I believe it supposed to be outside of the peptidoglycan cell wall.
    This is the order for gram positive from i side out: cytoplasm- phospholipid bilayer plasma membrane- Thick peptidoglycan cell wall- capsule
    For gram negative- cytoplasm- phospholipid bylayer plama membrane- thin peptidoglycan cell wall -additional llipopolysaccharides outer layer (LPS) - capsule.

  • @amanimohammed8437
    @amanimohammed8437 2 роки тому

    I watched this once for my midterms and now I'm watching it again for my finals.
    Really can't thank you enough!

  • @amrabdelmajeed340
    @amrabdelmajeed340 6 років тому +1

    Thank you Thank you Thank you
    It feels great when you can understand something ... Keep the good work up!

  • @harshvaibhav5473
    @harshvaibhav5473 Рік тому

    8-year-old, 12 min explanation ... it helped...

  • @ludimiraribeiro5192
    @ludimiraribeiro5192 5 років тому +2

    The plasma membrane was supposed to be where the bilayer phospholipids are! So it would be cell cytoplasm, cell membrane, cell wall ( made of peptidoglycan) and the capsule

  • @chiomafelicia8939
    @chiomafelicia8939 Рік тому

    I'm so happy to watch this. Thanks

  • @williamnavarro3629
    @williamnavarro3629 5 років тому +2

    thank you thank you thank you thank you thank you thank you thank you thank you thank you thank you thank you thank you thank you sooooooooooooooooo much i love you

  • @asadullahkhan3825
    @asadullahkhan3825 6 років тому +1

    Thank you! It really helped me understand the concept.

  • @crystalchristie1481
    @crystalchristie1481 4 роки тому

    Can't thank you enough for this. Keep up the good job

  • @samazareh7774
    @samazareh7774 3 роки тому

    Thanks for your colorful comprehensible explanation😊❤ It was really helpful and understandable.🙏🏻🌸

  • @IvanDias1305
    @IvanDias1305 7 років тому

    Wow! You're so didactic! Congratulations!!! Absolutely loved the lesson!

    • @susannaheinze
      @susannaheinze  7 років тому

      Wonderful to hear that! You must be taking microbiology! ;)
      Thanks for taking the time to comment on my videos, and please continue to point out errors or things that can be improved.

  • @azrita7018
    @azrita7018 4 роки тому

    OMG finally able to understand it. Thank you from Spain med student

  • @deearora9610
    @deearora9610 9 років тому +2

    You draw and explain so well! Superb :)

  • @chicagolandrealestateagent6423
    @chicagolandrealestateagent6423 7 років тому +5

    the protein xlinks are supposed amino acids only connected to the nams?

    • @susannaheinze
      @susannaheinze  7 років тому

      Chicagoland Real Estate Agent Yes that is correct!

    • @asiyachoudhary3562
      @asiyachoudhary3562 5 років тому

      But is also links nag. Then how can you say that it only connected to nam

  • @kingsclique7514
    @kingsclique7514 2 роки тому

    You just added value, thanks 👍

  • @mmaryamrc
    @mmaryamrc 6 років тому

    Organized and very well explained. super. Thank you

  • @CaptainVelveeta
    @CaptainVelveeta 7 років тому

    Probably the most simplistic yet comprehensive explanation I've come across.
    ...kudos (ツ)

    • @susannaheinze
      @susannaheinze  7 років тому

      Captain Velveeta Thank you for the nice comment!

  • @thefonz1589
    @thefonz1589 4 роки тому

    Your voice sounds a lot like Amazing polly! Great video, Thank you!

  • @EverythiNg-fg3wi
    @EverythiNg-fg3wi 4 роки тому +1

    But i thought tht in the same layer of peptydoglycane there is two types of linking
    One is made of 4 amino acides and one is made of 5 amino acides
    which links the the first nam to the second nam
    The third amino acil of the first peptidique chain linked to the interpeptidique chaine which is connected to the fourth amino acil of the second chain
    But all of this is in the same layer 💔😢
    So how are two layers connected ?!
    I really don't get it
    Plz answer me

    • @afoxrest
      @afoxrest 4 роки тому +1

      I think the interlinking is always seen with NAM of one layer with NAM of another layer between the 4th amino acid group(D-ala) by cleaving the 5th one(which also contains d-ala) and 3rd amino acid group of another layer of NAM by the pentaglycine crosslinking. I didn't understood why she linked the NAG of one layer with another.

  • @todesrazzlalol
    @todesrazzlalol 7 років тому

    Very well explained, thank you very much!

  • @fantasticpharma.online5995
    @fantasticpharma.online5995 3 роки тому

    Thanks

  • @葉柔宇
    @葉柔宇 5 років тому +1

    Thanks for the well explanation :)

  • @abigailzeamer5047
    @abigailzeamer5047 7 років тому

    Thank you for the wonderful video!

  • @saraabdulaziz3764
    @saraabdulaziz3764 3 роки тому

    Thank you for this! Makes sense now

  • @namedontmatters5849
    @namedontmatters5849 4 роки тому

    FINALLY I GOT THAT THING WHOME I WAS SEARCHING FOR.!!
    VERY SOOTHING VOICE NICE TO HEARE IT😁😁

  • @Paperflowers01
    @Paperflowers01 3 роки тому

    Thanks.

  • @savorwyy2825
    @savorwyy2825 3 роки тому

    YO this was mad helpful God bless

  • @ravidhyani1011
    @ravidhyani1011 3 роки тому

    U explained quite well

  • @farbodgilandoust7310
    @farbodgilandoust7310 4 роки тому

    Very nice and usefull👍👌👌👌👌👌👌👌

  • @kaelthuzad4640
    @kaelthuzad4640 4 роки тому

    inter layer linkage is mention but what about intra layer bounds ? ps; thanks for the vid

  • @JessicaMartinez-uq8cq
    @JessicaMartinez-uq8cq 6 років тому

    Thank you for this! Makes sense now😊

  • @nararymesidor501
    @nararymesidor501 6 років тому

    Thank you!

  • @fantasticpharma.online5995
    @fantasticpharma.online5995 3 роки тому

    Awesome

  • @TheMana93
    @TheMana93 8 років тому

    great job!

  • @aminhamoodizadeh4055
    @aminhamoodizadeh4055 2 роки тому

    great

  • @minhquantranngo2268
    @minhquantranngo2268 3 роки тому

    Omg, thanks a lot

  • @zahraammadani
    @zahraammadani 7 років тому

    Thank you

    • @susannaheinze
      @susannaheinze  7 років тому

      nona M Thanks for taking the time to comment! Glad you liked the video!

  • @zeinabsayed203
    @zeinabsayed203 4 роки тому

    Thank u very much :)

  • @umeshjinamaste
    @umeshjinamaste 6 років тому

    Very significant vidio

  • @mozreenkoser568
    @mozreenkoser568 4 роки тому

    Superb

  • @rohinipujar91
    @rohinipujar91 7 років тому

    It is nizz but pretty complicated .

  • @SparklingVenus142
    @SparklingVenus142 4 роки тому

    THX!!

  • @prasanraj4108
    @prasanraj4108 5 років тому

    Awesome mam

  • @maxdadax
    @maxdadax 7 років тому

    well done, thank you =)

    • @susannaheinze
      @susannaheinze  7 років тому

      maxdadax thank you for the comment! I'm so glad it was helpful for you.

    • @tinatran8584
      @tinatran8584 6 років тому

      This is very helpful. Thank you for giving me a valuable lesson

  • @thought958
    @thought958 7 років тому

    THNX BABY

  • @threetimesknowledge6283
    @threetimesknowledge6283 Рік тому

    Someone please give her Oscar useless

  • @rahuldev4012
    @rahuldev4012 6 років тому

    Thank u...it helped me.

  • @hak8755
    @hak8755 4 роки тому

    this is wronggg

  • @amanimohammed8437
    @amanimohammed8437 2 роки тому

    I watched this once for my midterms and now I'm watching it again for my finals.
    Really can't thank you enough!