which of these characterisitics apply to exocytosis?
requirese energy, requires, carrier proteins, requires channel proteins and/or requires vesicles.
Thanks.
Since this is not my area of expertise, I searched Google under the key words "exocytosis" to get these possible sources:
http://en.wikipedia.org/wiki/Exocytosis
http://users.rcn.com/jkimball.ma.ultranet/BiologyPages/E/Exocytosis.html
http://academic.brooklyn.cuny.edu/biology/bio4fv/page/exocy.htm
http://www.answers.com/topic/exocytosis
You can do a similar search with other key words for future questions.
I hope this helps. Thanks for asking.
Exocytosis is a process in which cells release substances outside of the cell by fusing vesicles with the cell membrane. Out of the characteristics you mentioned, the following apply to exocytosis:
1. Requires energy: Exocytosis requires energy in the form of adenosine triphosphate (ATP) to drive the process of vesicle fusion with the cell membrane.
2. Requires carrier proteins: Carrier proteins are involved in transporting substances within the vesicles to the cell membrane during exocytosis.
3. Requires vesicles: Exocytosis involves the fusion of vesicles, which contain substances to be released, with the cell membrane.
On the other hand, exocytosis does not typically require channel proteins. Channel proteins are involved in passive transport processes, such as facilitated diffusion, which do not involve the active release of substances from the cell.
Remember that while I have provided the information based on my programming, you can always verify the accuracy and gather more detailed information by referring to the sources I mentioned.