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Electron

Electron

(Science: chemistry, physics) a stable atomic particle that has a negative charge, the flow of electrons through a substance constitutes electricity.


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Nucleolus

... of the nucleolus, besides the fact that it manufactures the ribosomal subunits. -Why is it that the nucleolus appears very dark in transmission electron micrographs? Does it have heterochromatin? Does it even have DNA? Thanks.

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by Adz795
Mon Sep 05, 2011 2:24 pm
 
Forum: Cell Biology
Topic: Nucleolus
Replies: 5
Views: 377

Re: Electron Transport Chain

C6H12O6 + 6O2 --> 6CO2 + 6H2O + (energy – ATP + heat) Oxidation half-reaction C6H12O6 --> CO2 a + b + c = 0 a + b = 0 a + (+12) + (-12) = 0 a + (-4) = 0 a = 0 a = +4 ON of C = 0 ON of C = +4 increase of 4 Reduction half-reaction O2 --> H2O ON of O = 0 ON of O = -2 grow less of two

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by pam009
Tue Aug 02, 2011 6:27 am
 
Forum: Molecular Biology
Topic: Electron Transport Chain
Replies: 3
Views: 999

Charge transport through DNA

... DNA in the double helix ) ? The proton transfer in the hydrogen bond was described. Therefore this case is not interesting. It is interesting - is electron transfer possible through hydrogen bond or by another way (not through hydrogen bond) ? Also question - is proton transfer possible not through ...

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by limarodessa
Sun Jul 17, 2011 8:53 am
 
Forum: General Discussion
Topic: Charge transport through DNA
Replies: 1
Views: 188

Why does chlorophyll always fluoresce in red?

... energy. Chlorophyll is able to absorb different colors of light, especially red and blue light. The relatively weak red light causes chlorophyll's electron to jump one "energy level." Since blue light has more energy, it excites the chlorophyll's electrons even more: They jump two levels. ...

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by lovie9
Wed Jul 13, 2011 8:57 am
 
Forum: Botany Discussion
Topic: Why does chlorophyll always fluoresce in red?
Replies: 6
Views: 3156

Brain evolution last 40,000 years

... you can see that? I will touch very quickly on Molecular Biology now wasen't that a cruel blow to Christianity the invention of the SEM (scanning electron microscope) i guess all them wonderful organisms seen on the monitor are all a figment of ones imagination right? anyway im not going to go ...

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by vk4vfx
Wed Jul 06, 2011 4:11 pm
 
Forum: Evolution
Topic: Brain evolution last 40,000 years
Replies: 5
Views: 656
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