endocytosis

Discussion of all aspects of cellular structure, physiology and communication.

Moderators: honeev, Leonid, amiradm, BioTeam

Post Reply
not.too.sure
Garter
Garter
Posts: 1
Joined: Sun Dec 18, 2005 8:37 pm

endocytosis

Post by not.too.sure » Sun Dec 18, 2005 8:49 pm

Im confused about the difference between phagocytosis and pinocytosis

the definitions talk about "cell eating" and "cell drinking"

but that doesn't make sense to me..

User avatar
mith
Inland Taipan
Inland Taipan
Posts: 5345
Joined: Thu Jan 20, 2005 8:14 pm
Location: Nashville, TN
Contact:

Post by mith » Sun Dec 18, 2005 11:47 pm

cell eating, one cell eats another
cell drinking, a cell takes in some liquid
Living one day at a time;
Enjoying one moment at a time;
Accepting hardships as the pathway to peace;
~Niebuhr

baikuza
Coral
Coral
Posts: 429
Joined: Tue Aug 30, 2005 10:09 am
Location: Yogyakarta, indonesia, south-east asia
Contact:

Post by baikuza » Mon Dec 19, 2005 1:23 am

correct me if i'm wrong. phagocytosis not only eat the another cell only but also eat virus,... maybe any nutients also(e.g. the bacteria eating an nutrient)

User avatar
chicoguardian
Coral
Coral
Posts: 121
Joined: Wed Oct 19, 2005 12:18 pm
Contact:

Post by chicoguardian » Mon Dec 19, 2005 12:53 pm

pinocytosis is simply the taking in of liquid solutes and phagocytosis is the taking in of large food particles and micro-organisms such as bacteria and viruses...
Life is not of comedy but tragedy, life lives and then dies in sorrow

User avatar
MrMistery
Inland Taipan
Inland Taipan
Posts: 6832
Joined: Thu Mar 03, 2005 10:18 pm
Location: Romania(small and unimportant country)
Contact:

Post by MrMistery » Mon Dec 19, 2005 6:48 pm

Actually curent cytologists don't divide endocytosis between phagocytosis and pinocytosis anymore. The current division is by the mechanism, not the result. And trust me, there is absolutely nothing in common between phagocytosis(taking in whole cells) and endocytosis(taking in macromolecules). So, they divided these vesicle forming mechanisms into phagocytosis and endocytosis. Endocytosis is divided into pinocytosis and receptor mediated endocytosis(you will find this last one in the mechanism cells take in cholesterol from the blood.)

Why high-school books and in some countries, even college books choose the old, outdated definition, is beyond me...
"As a biologist, I firmly believe that when you're dead, you're dead. Except for what you live behind in history. That's the only afterlife" - J. Craig Venter

zonia30
Garter
Garter
Posts: 19
Joined: Fri Dec 30, 2005 9:06 pm

Post by zonia30 » Fri Dec 30, 2005 9:15 pm

hi i need some examples of where endocytosis and exocytosis take place in the body if anyone can help please

User avatar
mith
Inland Taipan
Inland Taipan
Posts: 5345
Joined: Thu Jan 20, 2005 8:14 pm
Location: Nashville, TN
Contact:

Post by mith » Fri Dec 30, 2005 10:10 pm

Textbook?
Living one day at a time;
Enjoying one moment at a time;
Accepting hardships as the pathway to peace;
~Niebuhr

zonia30
Garter
Garter
Posts: 19
Joined: Fri Dec 30, 2005 9:06 pm

Post by zonia30 » Fri Dec 30, 2005 11:00 pm

yeah tried a couple got a couple but need four examples of each

Post Reply

Who is online

Users browsing this forum: No registered users and 4 guests