SDN members see fewer ads and full resolution images. Join our non-profit community!

Endocytosis requires ATP????!

Discussion in 'DAT Discussions' started by Predentknight, Jun 10, 2008.

  1. SDN is made possible through member donations, sponsorships, and our volunteers. Learn about SDN's nonprofit mission.
  1. Predentknight

    Predentknight 5+ Year Member

    Feb 12, 2008
    According to destroyer endocytosis requires ATP. I was not aware of this, and apparently neither is Wiki. So can someone explain and please elaborate on the differences between pinocytosis, phagocytosis and receptor-mediate. which ones require ATP and which do not.
  2. SDN Members don't see this ad. About the ads.
  3. bumpski20

    bumpski20 2+ Year Member

    Sep 2, 2007
    pinocytosis = "cell drinking"
    phagocytosis = "cell eating"
    i think these are just types of endocytosis. endocytosis is the invagination of a plasma membrane to form vesicles. it is an examples of active transport which requires atp. im not exactly sure what receptor mediate is...i thought it was just another type of endocytosis. if it is, it requires atp since endocytosis does.
  4. TeamGuo

    TeamGuo 2+ Year Member

    Apr 1, 2008
    those are correct answers.

    pinocytosis is cell drinking but it's not really drinking it just means that it's taking smaller matter in via endocytosis compared to phagocytosis.

    receptor mediated endocytosis is also a type of phagocytosis. This is a specific type of endocytosis since you are binding a specific molecule to the receptor to bring something in. LDL is a good example since it is a lipoprotein that transports cholesterol and fat by this way.

    When the body needs some cholesterol it makes LDL receptors on the plasma membrane and then LDL binds it to the receptor to do some cholesterol transport.

    There's 3 types of phagocytosis which are the 3 that you have listed.

    Hope that helped a bit.
  5. theedaddy77

    theedaddy77 2+ Year Member

    May 9, 2008
    so does exocytosis
  6. mddang

    mddang 5+ Year Member

    Dec 29, 2007
    Houston, TX
    I think the polymerization and depolymerization of actin are involved in the movement of the secretory vesicles involved in endocytosis/exocytosis. This requires ATP.
  7. jay47

    jay47 Think Positively! 5+ Year Member

    Aug 4, 2007

    True statement. Of course everything in the cell will require ATP to make, however, as far as DIRECTLY needing ATP for endo/exocytosis, no. It's not like active t-port where ATP is directly involved.

    It is all a matter of opinion.

Share This Page