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Polar group

polar group

(Science: chemistry) Any chemical grouping in which the distribution of electrons is uneven enabling it to take part in electrostatic interactions.


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Experiment: Can Electromagnetic....

... can harm the viability or vitality of bacteria Experiment: Control Group: Bacteria sample on petri dish, isolated from electromagnetic radiation. ... from the cell phone acts as sort of a "microwave". Any polar molecule will "wiggle" or try to align with magnetic fields. ...

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by seta37
Fri Apr 24, 2009 4:10 pm
 
Forum: Cell Biology
Topic: Experiment: Can Electromagnetic....
Replies: 7
Views: 782

I just want to make sure that my hw problems are correct.thk

... is C Which of the following is an example of an amino acid with a nonpolar (hydrophobic) R group a. glutamic acid b. isoleucine c. serine d. cysteine e. lysine *The answer I got is a ...

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by maya786
Tue Sep 16, 2008 2:22 am
 
Forum: General Discussion
Topic: I just want to make sure that my hw problems are correct.thk
Replies: 3
Views: 810

Polar or non-polar: Conflicting answers

I can say that tyrosine is a polar amino acid. Even it has a phenolic side-ring, it doesn't affect the solubility ... polar solvent (ex: water). It's all because of the strong charge of the hydroxyl group in the aromatic ring. Phenol resembles the side chain of tyrosine and thus it's ...

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by victor
Thu Jan 24, 2008 3:17 am
 
Forum: Molecular Biology
Topic: Polar or non-polar: Conflicting answers
Replies: 7
Views: 4240

Re: Polar or non-polar: Conflicting answers

Tyrosine is not polar its non-polar!! i know this might come as a shock to some of u but just because a compound as a polar group doesnt mean its OVERALL polar. tyrosine's polar OH group is overcome by the majority of non-polarity ...

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by samandeep
Thu Jan 10, 2008 3:55 am
 
Forum: Molecular Biology
Topic: Polar or non-polar: Conflicting answers
Replies: 7
Views: 4240

Some explaining...

... of that approach was that codons for some amino acids fell apart and groups of amino acids were separated. The code is degenerate, meaning that ... according to chemical properties of the respective amino acids: (u) non-polar, (p) polar, (+) basic/ positive charge, (-) acidic/ negative charge, ...

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by Roland Pohlmeyer
Mon Sep 24, 2007 2:59 pm
 
Forum: Evolution
Topic: coevolution of the genetic code
Replies: 16
Views: 3975
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