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Methyl group

Methyl group

A -CH3 group on a larger molecule. A carbon which is single-bonded to three hydrogens, and has one free bond to the rest of the molecule.


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Does anything affect absorption spectrum of chlorophyll?

First of all, I was wrong. There is a methyl group on chlorophyll a and a carbonyl group on chlorophyll b. The accessory pigments will affect the ...

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by plasmodesmata11
Tue Mar 03, 2009 11:20 pm
 
Forum: Botany Discussion
Topic: Does anything affect absorption spectrum of chlorophyll?
Replies: 9
Views: 2132

Re: Krebs Cycle question

... and oxaloacetate to form citrate) is the enolization of the acetyl group which then acts as a nucleophile toward bound oxaloacetate. Water--freely ... thiol activates in two senses: it enhances the rate of enolization (the methyl protons of the thioester are more acidic than a simple ester); and ...

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by blcr11
Sun Dec 28, 2008 12:28 am
 
Forum: Cell Biology
Topic: Krebs Cycle question
Replies: 4
Views: 1183

Estrogen

... (C19), and then estrogen (C18). Estrogen has an alcohol functional group at the C3 and C17 positions, and a methyl group at C13. A unique aspect of estrogen biosynthesis is the conversion (catalyzed ...

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by chenhongxia
Fri Aug 15, 2008 1:47 am
 
Forum: Physiology
Topic: Estrogen
Replies: 4
Views: 2512

Acidic and basic groups

out of these groups: carboxyl, hydroxyl, hydrocarbon chain, methyl, ketone. which group(s) - there may be more than one for each: 1 - increase a molecule's solubility? 2 ...

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by x-disturbed-x
Mon Nov 27, 2006 9:04 pm
 
Forum: Cell Biology
Topic: Acidic and basic groups
Replies: 1
Views: 451

The Fiber Disease

... presence in the mitochondrial version of the ATPase 9 gene of a small group IA intron. The extensive amino-acid sequence similarity with the equivalent ... of carbohydrates organic acids alcohols and lipids" PRODUCT=methyl coenzyme M reductase system, component A2 homolog"sensory transduction ...

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by Nadas Moksha
Sun Aug 27, 2006 2:40 pm
 
Forum: Human Biology
Topic: The Fiber Disease
Replies: 7403
Views: 748648
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