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Proton

proton

(Science: physics) An elementary atomic particle with a positive charge and a mass of about 1 amu.


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ETC - purpose of having different dehydrogenases?

... complexes (more specifically, NDH-1 and NDH-2). One major difference between the two is the fact that NDH-1 is a coupling site (so pumps out protons while transferring electrons) while NDH-2 is not; will not pump out any protons. As a result of this, the NET ATP produced will be different. ...

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by keetner
Sat Dec 15, 2012 2:28 am
 
Forum: Molecular Biology
Topic: ETC - purpose of having different dehydrogenases?
Replies: 1
Views: 2419

Chemiosmosis

... to the generation of ATP by the movement of hydrogen ions across a membrane during cellular respiration.It will diffuse from an area of high proton concentration to an area of lower proton concentration. This could be harnessed to make ATP. He likened this process to osmosis, the diffusion ...

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by MarkHolland
Wed Dec 05, 2012 7:34 am
 
Forum: Cell Biology
Topic: Chemiosmosis
Replies: 5
Views: 5537

Oxidation

... bit confused by the biological oxidation. It is performed by the release of hydrogen instead of addition oxygen, right? And hydrogen acts as a proton. So why is NAD reduced instead of oxidized when it becomes positive? And following this logic, in biological oxidation are reducers donors, and ...

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by blackbird27
Fri May 25, 2012 2:45 pm
 
Forum: Molecular Biology
Topic: Oxidation
Replies: 2
Views: 2152

Re: Molecular gene (genome) concept scientifically untenable

... Nuclear decay changes the nuclide. There are atomic species for an element; these species we distinguish as “nuclides”. For example P-31 with 15 protons and 16 neutrons is the stable phosphorus nuclide, which is not radioactive. When the neutron number increases to 17 it becomes P-32 and its ...

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by PAWahid
Sat May 12, 2012 2:29 am
 
Forum: Molecular Biology
Topic: Molecular gene (genome) concept scientifically untenable
Replies: 12
Views: 28991

Could anyone please help with these questions? (Bio)

... to radiation Which is not a compound? A. Salt B. Carbohydrate C. Carbon D. Sugar E. Methane The negative subatomic particle is the A. Neutron B. Proton C. Electron D. A and B E. B and C The positive subatomic particle is the A. Neutron B. Proton C. Electron D. A and B E. B and C The Neutral subatomic ...

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by lindshastude
Tue May 01, 2012 3:50 pm
 
Forum: General Discussion
Topic: Could anyone please help with these questions? (Bio)
Replies: 1
Views: 6796
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