cellular component

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logomaniac
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cellular component

Post by logomaniac » Sat Jan 30, 2010 11:11 am

my question: what is the difference between 'vacuole' and 'vesicle'? Is their meanings are same?
or perhaps, vacuole refers to big one while vesicle refers to small one? please kindly tell me the answer if you know. Thanks.

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jwalin
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Post by jwalin » Sat Jan 30, 2010 2:34 pm

good question

ummm
vacuoles don't merge with cell membranes and empty their contents.
they can be larger. i used can. at times vessicles are also larger
it isn't what you do that matters but it is how you do it

logomaniac
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Post by logomaniac » Sat Jan 30, 2010 2:40 pm

thanks you very much for your great response.

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MrMistery
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Post by MrMistery » Sat Jan 30, 2010 4:27 pm

actually...

Vesicles are little "transport and temporary storage" devices that the cell uses to transport stuff between the ER and the Golgi and the lysosomes, and only to take stuff to the plasma membrane. A vesicle is defined by its small size and by how it forms (through the formation of a clathrin/COP/caveolin coat), and also through the presence of some surface proteins like v-SNAREs

A vacuole is the plant (and yeast, and some protozoan) equivalent of an animal cell lysosome. Animal cells don't have vacuoles and plant cells don't have lysosomes. Vacuoles have some of the same functions such as lysosomes, but also work in storage of certain molecules. But basically, a vacuole is just a big lysosome.
"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

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