BioVisions: The Inner Life of a Cell - FMVperformance.com : The site for all your Ford Mazda and Volvo needs
 
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post #1 of 8 (permalink) Old 11-18-2006, 12:23 AM Thread Starter
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BioVisions: The Inner Life of a Cell

My TA showed me this video. It was an unique way to study for my cell biology midterm (Being able to identify everything in the video and explain what is happening in these processes was a big help)

Other than being a study tool, i cant stop watching it. I hope i'm not being bias here (i'm a molecular biology major), but i thought this video was created beautifully, not to mention it's consistent with experimental data.

http://aimediaserver.com/studiodaily...amp;height=520

And just to let you guys know, that thing walking on a tube track with a big sack behind it is called Kinesin. It is real and this is how they transport cargoes, they actually slowed it down here to show that ATP hydrolysis is required for each "step". But i thought it was funny of the producers to keep showing it. Everytime it shows up, it's walking slowly on a never ending track... hahahahaa sucker

Also, anyone know the name of the song?
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post #2 of 8 (permalink) Old 11-18-2006, 12:54 AM
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Re: BioVisions: The Inner Life of a Cell

Amazing production! When I think of a cell, that thing they call the "basic building block of life," I can't help but be awed at the utter level of organization and order in such a minuscule yet intricately complex package that makes living things what they are. This is especially true when considering that the contents of every cellular structure are non-living, yet together they complement each other in just the right ways and interact in just the right ways chemically to make life, sustain order within the system, and replicate perfectly almost every time. To me, it is a strong argument in favor of the existence of a God.

Thanks for sharing that. I'll send it to some of my friends in the Biology and Biomedical Engineering departments at my university.


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post #3 of 8 (permalink) Old 11-18-2006, 12:59 AM
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Re: BioVisions: The Inner Life of a Cell

double-post. oops.


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post #4 of 8 (permalink) Old 11-18-2006, 02:11 PM Thread Starter
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Re: BioVisions: The Inner Life of a Cell

There's a full 8mins version of this video. It's meant for lectures with narration and everything. Can someone tell me what a Spectrin Tetramer is? It's early in the video. It looks like a bunch of triangles laid out on a blue sea.

When i was watching the 3mins short version, i thought that was a vesicle, and the triangle-like structure surrounding it was clatherin.
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post #5 of 8 (permalink) Old 11-18-2006, 04:27 PM
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Re: BioVisions: The Inner Life of a Cell


Is there a link to the 8min version? I don't have a strong enough background in bio and as cool as that video looks, it doesn't mean anything to me.

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post #6 of 8 (permalink) Old 11-18-2006, 06:45 PM Thread Starter
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Re: BioVisions: The Inner Life of a Cell

yeah here you go, click "media" on the bottom right... There is no music, but there's a guy narrating

http://multimedia.mcb.harvard.edu/
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post #7 of 8 (permalink) Old 11-18-2006, 08:26 PM
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Re: BioVisions: The Inner Life of a Cell

[quote author=Say Chi Sin Lo link=topic=62697.msg1074685#msg1074685 date=1163877102]
Can someone tell me what a Spectrin Tetramer is?
[/quote]

I know a tetramer is a protein that is composed of 4 (tetra=4) subunits, similarly to how a dimer (di=2) is composed of two.

Spectrin tetramer, according to my quick research, is a product of bound hemoglobin reaction with spectrin dimer in the cell membrane due to hemoglobin oxidation in red blood cells. Essentially, as the cell ages, spectrin tetramer builds up. I could be wrong. I had to decipher some academic bio-speak as best I could.

I'm assuming that this means red blood cell membranes have a tendency to physically break down after a period of time as the spectrin dimer is depleted?
I'm sorry if this doesn't make sense, I'm trying to put it in terms that I can understand and it's probably not working. Computer engineering != Biology :-P

Maybe you can make more sense of it: http://www.stormingmedia.us/32/3230/A323063.html



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post #8 of 8 (permalink) Old 11-18-2006, 10:29 PM Thread Starter
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Re: BioVisions: The Inner Life of a Cell

^ It does make sense, based on your explanation, it would explain why we as humans generate new blood cells. Remember, the body is a very energy efficient machine, if it doesnt need something, it wont invest energy in assembling it.
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