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few questions about cell biology!!!

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few questions about cell biology!!!

Postby outaouais » Mon Apr 16, 2007 9:57 pm

can someone please help me with these. i have a final exam tomorrow and tryingto solve previous years' exam .. and was stuck on these. thanks.

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The vesicle-forming protein associated with the formation of receptor mediated endocytotic vesicles is called _______________.

In a cilium there are characteristically ______ peripheral doublets arranged in a ring around
______ single microtubules. (You are only required to enter numerals.)

The main protein in the basement membrane of animal epithelia is _____________.

The principal chemical component of the bacterial cell wall is a large polysaccharide-peptide
complex called ______________________.

Secretory proteins leave the tER in vesicles coated with ___________

RNA with catalytic activity is called a ___________________.

_________________ is a poison that is useful in the study of microtubules.
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Postby outaouais » Tue Apr 17, 2007 1:30 am

come on ppl .. help me out please .. i got an exam tomorrow .. and im stuck on those.. its not liks its a homework or someitgn .. please
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Postby blcr11 » Tue Apr 17, 2007 2:25 am

The vesicle-forming protein associated with the formation of receptor mediated endocytotic vesicles is called __clathrin?_____________.

In a cilium there are characteristically ___9___ peripheral doublets arranged in a ring around
___?___ single microtubules. (You are only required to enter numerals.)

The main protein in the basement membrane of animal epithelia is __collagen?___________.

The principal chemical component of the bacterial cell wall is a large polysaccharide-peptide
complex called __peptidoglycan?____________________.

Secretory proteins leave the tER in vesicles coated with __clathrin?_________

RNA with catalytic activity is called a _ribozyme__________________.

__Vincristine_______________ is a poison that is useful in the study of microtubules.



Clathrin-coated vesicles could be produced in the trans ER/golgi as well as receptor-mediated endocytic vesicles at the membrane. The mannose-6-phosphate receptor is also a possible answer for either of the ones where clathrin is given. I don’t know which, if either, is correct.

Caveat: I am not a cell biologist, and what cell biology I took was more than 20 years ago.
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Postby blcr11 » Tue Apr 17, 2007 2:40 am

But I also gotta believe that a quick look at a decent cell biology textbook would have given you answers--maybe even the correct ones, as my understanding of these things is certainly not current.
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Postby mith » Tue Apr 17, 2007 3:40 am

would probably take you the same amount of time as typing that up...
Living one day at a time;
Enjoying one moment at a time;
Accepting hardships as the pathway to peace;
~Niebuhr
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Postby outaouais » Tue Apr 17, 2007 4:06 am

^^ dont have the text wiht me right now ..


thanks a lot blcr11 ..
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Postby kotoreru » Tue Apr 17, 2007 12:09 pm

In a cilium there are characteristically ___9___ peripheral doublets arranged in a ring around
___?___ single microtubules. (You are only required to enter numerals.)


I believe there are 9 peripheral doublets around 2 single microtubules, if that helps.

As always, I could be wrong.
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