Successfully reported this slideshow.
We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. You can change your ad preferences anytime.
IB Biology2 Cells2.4 Cell MembranesAll syllabus statements ©IBO 2007All images CC or public domain or link to original mat...
2.4.1 Draw and label a diagram to show the structure of membranes.                                                        ...
2.4.2 Explain how the hydrophobic and hydrophilic properties of phospholipids help to maintainthe structure of cell membra...
The Oil droplet stays together and makesa perfect circular shape.                               The oil                   ...
Phospholipid                                          molecules have a                                            polar (c...
When put into water, an emergent property is thatphospholipids will self-organise to keep their heads            ‘wet’ and...
In this 3D representation    you can see that a phospholipid bilayer is  one way that the tailscan be removed from the    ...
But wait! there’s more!The plasma membrane is not just made of             phospholipids           http://commons.wikimedi...
Proteins:Integral proteins are permanently embedded, many go all the waythrough and are polytopic (poly = many, topic = su...
Beta-secretase 1               (peripheral) has a role                    in creating myelin                              ...
Glycoproteins:Are proteins with an oligosaccaride (oligo = few, saccharide = sugar)chain attached.They are important for c...
Cholesterol: (It’s not all bad!)It makes the phospholipids pack more tightly and regulates thefluidity and flexibility of ...
2.4.3 List the functions of membrane proteins         List: Give a sequence of names or other brief answers with no explan...
1    Cell Adhesion Molecules:    Enable cells to make tight    connections to one    another                              ...
2   Channel Proteins: Allow or help ions and large molecules to    pass through the membrane by diffusion                 ...
3   Protein Pumps move ions    across the membrane to    create and maintain    concentration gradients.    They require e...
4   Hormone Binding sites (hormone    receptors) bind to specific hormones and    start signalling processes to change the...
5   Cell to cell communication:    e.g. receptors for    neurotransmitters at    synapses                               Ou...
6                                             Enzymes on the surface of                                              the c...
2.4.4 Define diffusion and osmosis     What is                                     http://www.flickr.com/photos/dpup/33389...
Diffusion, is the motion of all (liquid or gas) particles attemperatures above absolute zero.• The rate of this movement r...
1. Grab your classmates or a group     Simulate!                of friends.                           2. Take one die each...
What is  osmosis?          http://www.flickr.com/photos/luchilu/399970490/
Osmosis may occur when there is a partiallypermeable membrane, such as a cellmembrane.When a cell is submerged in water, t...
Theimportanceof osmoticcontrol             http://commons.wikimedia.org/wiki/File:Osmotic_pressure_on_blood_cells_diagram....
2.4.5 Explain passive transport across membranes in terms of simple diffusion and facilitateddiffusion.          Simple   ...
Facilitated Diffusion:Large and polar molecules can’t get across the membrane viasimple diffusionTransmembrane (polytopic)...
2.4.6 Explain the role of protein pumps and ATP in active transport across membranes    Primary active transport requires ...
In secondary active transport, the required energy isderived from energy stored in the form of concentrationdifferences in...
Typically, theconcentrationgradient of thesecond solute wascreated by primaryactive transport,and the diffusion ofthe seco...
2.4.7 Explain how vesicles are used to transport materials within a cell between the roughendoplasmic reticulum, Golgi app...
2.4.8 Describe how the fluidity of the membrane allows it to change shape, break and reformduring endocytosis and exocytos...
Constitutivesecretionoccurscontinuously incells,depending ontheir function                                               R...
“Cell eating”   “Cell drinking”                           http://commons.wikimedia.org/wiki/File:Endocytosis_types.svg
As mentioned, phospholipids can move freely past each other    laterally but very rarely do they move vertically or flip  ...
Further information:   Most of the excellent biology images in this slideshow are by graphic designer   Mariana Ruiz Villa...
Upcoming SlideShare
Loading in …5
×

Theimportanceof osmoticcontrol http://commons.wikimedia.org/wiki/File:Osmotic_pressure_on_blood_cells_diagram.svg http://commons.wikimedia.org/wiki/File:Turgor_pressure_on_plant_cells_diagram.svg IB Biology Core 2.4: Cell Membranes

23,915 views

Published on

Theimportanceof osmoticcontrol http://commons.wikimedia.org/wiki/File:Osmotic_pressure_on_blood_cells_diagram.svg http://commons.wikimedia.org/wiki/File:Turgor_pressure_on_plant_cells_diagram.svg

Published in: Education, Technology
  • Dating direct: ♥♥♥ http://bit.ly/2F7hN3u ♥♥♥
       Reply 
    Are you sure you want to  Yes  No
    Your message goes here
  • Dating for everyone is here: ❤❤❤ http://bit.ly/2F7hN3u ❤❤❤
       Reply 
    Are you sure you want to  Yes  No
    Your message goes here
  • DOWNLOAD THIS BOOKS INTO AVAILABLE FORMAT (2019 Update) ......................................................................................................................... ......................................................................................................................... Download Full PDF EBOOK here { https://soo.gd/irt2 } ......................................................................................................................... Download Full EPUB Ebook here { https://soo.gd/irt2 } ......................................................................................................................... Download Full doc Ebook here { https://soo.gd/irt2 } ......................................................................................................................... Download PDF EBOOK here { https://soo.gd/irt2 } ......................................................................................................................... Download EPUB Ebook here { https://soo.gd/irt2 } ......................................................................................................................... Download doc Ebook here { https://soo.gd/irt2 } ......................................................................................................................... ......................................................................................................................... ................................................................................................................................... eBook is an electronic version of a traditional print book THIS can be read by using a personal computer or by using an eBook reader. (An eBook reader can be a software application for use on a computer such as Microsoft's free Reader application, or a book-sized computer THIS is used solely as a reading device such as Nuvomedia's Rocket eBook.) Users can purchase an eBook on diskette or CD, but the most popular method of getting an eBook is to purchase a downloadable file of the eBook (or other reading material) from a Web site (such as Barnes and Noble) to be read from the user's computer or reading device. Generally, an eBook can be downloaded in five minutes or less ......................................................................................................................... .............. Browse by Genre Available eBooks .............................................................................................................................. Art, Biography, Business, Chick Lit, Children's, Christian, Classics, Comics, Contemporary, Cookbooks, Manga, Memoir, Music, Mystery, Non Fiction, Paranormal, Philosophy, Poetry, Psychology, Religion, Romance, Science, Science Fiction, Self Help, Suspense, Spirituality, Sports, Thriller, Travel, Young Adult, Crime, Ebooks, Fantasy, Fiction, Graphic Novels, Historical Fiction, History, Horror, Humor And Comedy, ......................................................................................................................... ......................................................................................................................... .....BEST SELLER FOR EBOOK RECOMMEND............................................................. ......................................................................................................................... Blowout: Corrupted Democracy, Rogue State Russia, and the Richest, Most Destructive Industry on Earth,-- The Ride of a Lifetime: Lessons Learned from 15 Years as CEO of the Walt Disney Company,-- Call Sign Chaos: Learning to Lead,-- StrengthsFinder 2.0,-- Stillness Is the Key,-- She Said: Breaking the Sexual Harassment Story THIS Helped Ignite a Movement,-- Atomic Habits: An Easy & Proven Way to Build Good Habits & Break Bad Ones,-- Everything Is Figureoutable,-- What It Takes: Lessons in the Pursuit of Excellence,-- Rich Dad Poor Dad: What the Rich Teach Their Kids About Money THIS the Poor and Middle Class Do Not!,-- The Total Money Makeover: Classic Edition: A Proven Plan for Financial Fitness,-- Shut Up and Listen!: Hard Business Truths THIS Will Help You Succeed, ......................................................................................................................... .........................................................................................................................
       Reply 
    Are you sure you want to  Yes  No
    Your message goes here
  • DOWNLOAD THIS BOOKS INTO AVAILABLE FORMAT (2019 Update) ......................................................................................................................... ......................................................................................................................... Download Full PDF EBOOK here { https://soo.gd/irt2 } ......................................................................................................................... Download Full EPUB Ebook here { https://soo.gd/irt2 } ......................................................................................................................... Download Full doc Ebook here { https://soo.gd/irt2 } ......................................................................................................................... Download PDF EBOOK here { https://soo.gd/irt2 } ......................................................................................................................... Download EPUB Ebook here { https://soo.gd/irt2 } ......................................................................................................................... Download doc Ebook here { https://soo.gd/irt2 } ......................................................................................................................... ......................................................................................................................... ................................................................................................................................... eBook is an electronic version of a traditional print book THIS can be read by using a personal computer or by using an eBook reader. (An eBook reader can be a software application for use on a computer such as Microsoft's free Reader application, or a book-sized computer THIS is used solely as a reading device such as Nuvomedia's Rocket eBook.) Users can purchase an eBook on diskette or CD, but the most popular method of getting an eBook is to purchase a downloadable file of the eBook (or other reading material) from a Web site (such as Barnes and Noble) to be read from the user's computer or reading device. Generally, an eBook can be downloaded in five minutes or less ......................................................................................................................... .............. Browse by Genre Available eBooks .............................................................................................................................. Art, Biography, Business, Chick Lit, Children's, Christian, Classics, Comics, Contemporary, Cookbooks, Manga, Memoir, Music, Mystery, Non Fiction, Paranormal, Philosophy, Poetry, Psychology, Religion, Romance, Science, Science Fiction, Self Help, Suspense, Spirituality, Sports, Thriller, Travel, Young Adult, Crime, Ebooks, Fantasy, Fiction, Graphic Novels, Historical Fiction, History, Horror, Humor And Comedy, ......................................................................................................................... ......................................................................................................................... .....BEST SELLER FOR EBOOK RECOMMEND............................................................. ......................................................................................................................... Blowout: Corrupted Democracy, Rogue State Russia, and the Richest, Most Destructive Industry on Earth,-- The Ride of a Lifetime: Lessons Learned from 15 Years as CEO of the Walt Disney Company,-- Call Sign Chaos: Learning to Lead,-- StrengthsFinder 2.0,-- Stillness Is the Key,-- She Said: Breaking the Sexual Harassment Story THIS Helped Ignite a Movement,-- Atomic Habits: An Easy & Proven Way to Build Good Habits & Break Bad Ones,-- Everything Is Figureoutable,-- What It Takes: Lessons in the Pursuit of Excellence,-- Rich Dad Poor Dad: What the Rich Teach Their Kids About Money THIS the Poor and Middle Class Do Not!,-- The Total Money Makeover: Classic Edition: A Proven Plan for Financial Fitness,-- Shut Up and Listen!: Hard Business Truths THIS Will Help You Succeed, ......................................................................................................................... .........................................................................................................................
       Reply 
    Are you sure you want to  Yes  No
    Your message goes here
  • My daughter struggled with Maths due to an absence of teachers during year 10. I purchased Jeevan's 'home-tutor' program and she has not looked back. Not only does it explain the basic steps but also how to achieve those top grades. This is not only far better than a private tutor but amazing value for money. I would only have got a few hours of a tutors time for the same money. I am very grateful as this has turned my daughters attitude to Maths around- she now loves it and finds it easy! My other daughter, who is currently 14-years-old, has already begun your program. After going through your book and DVD's, she has moved up to the top set in maths. I have no doubt when she takes her GCSE maths in 2 years, she will achieve an A/A* grade! Many many thanks for your help Jeevan! ■■■ http://t.cn/AirraVnG
       Reply 
    Are you sure you want to  Yes  No
    Your message goes here

×