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Which amino acid does not show any optical isomerism?
Kanishaksharma
Glycine because it is not chiral :)
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∙ 14y ago
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How are differences between DNA amino acid sequence used to show relatedness between species?
the acid burns the fats
Show how alanine could be deaminated to give the end-products indicated alanine pyruvic acid of what value is deamination to a microbe?
Alanine is deaminated to give pyruvic acid (C3H4O3 ) and Ammonia (NH3) Pyruvic Acid.
What is glycine buffer for?
NH2CH2CO2HAmino acids are zwitter-ions, meaning they can have charges on both the amino & carboxylic groups, and yet have no net charge. Confused? wait! The amino group, -NH2 can become -NH3+, while the carboxylic group -COOH becomes -COO-. This is the zwitter ion. This is the form that predominates at ambient conditions. When in acidic media, the -COO- group grabs a proton, becoms -COOH and gets rid of the H+. The amino acid now has a net positive charge, (fully protonated, two protons at both acid & amino ends), so we call it the protonated form. In basic media, the -NH3+ group donates a proton to the medium (with extra OH-), to form H2O, thus getting rid of extra OH-. The amino acid now bears a net negative charge, so we call it anionic form. This is known as pseudo-buffer action. You should also be aware that although amino acids show this behaviour, it is limited and amino acids themselves are not classified as buffers
Decarboxylation of an amino acid results in the evolution of carbon dioxide would a gas trap be an accurate measure of decarboxylation?
You would be able to determine if the process were taking place. You would have trouble determining how much was taking place though.
Do two proteins that have similar amino acid sequences have similar functions even if they are isolated from different organisms?
Functional similarity depends on the similarity percentage and the positioning of the conserved residuesin the sequences that are important for interaction. Usually the sequences showing 35% or more MAY tend to show functional similarity but again as i said it ALSO depends on the conserved residues in the sequences which may be located in the active site.
Why elctrovalent compound does not show the isomerism while covalent compound show isomerism?
Nt sure I agree with the question. Consider the octahedral polyatomic ion Co(NH3)4Cl2+ this has trans and cis isomers (chlorines opposite each other at 180 0 or next to each other at 90 0). Generelly isomerism is rare in electrovalent compounds. One interesting example is the optical isomerism of ammonium sodium tartrate discovered by Pasteur.
What does an amino acid table show?
Amino acid tables are used to translate mRNA codons into amino acid sequences. They also tell whem mRNA codons produce stops.
Why does a tetrahedral complex of the type MA2B2 not show geometrical isomerism?
For Geometrical isomerism the free rotation about the bonds should be restricted so a double bonded or cyclic compound may show the geometrical isomerism.
How do alkenes show geometric isomerism?
all the non terminal straight chain alkenes show the geometrical isomerism..
What is the minimum number of different amino acid needed to synthesized most proteins?
Calculations show that there is a minimum of three bases required to encode 20 amino acids. Experiments show that amino acid is encoded by groups of three bases.
How are differences between DNA amino acid sequence used to show relatedness between species?
the acid burns the fats
Which amino acid forms a dimer that help in protein stability?
It would be the amino acid that has sulfur in it's R group because sulfur forms covalent dimers that strongly bond in proteins. Name escapes my memory, but any amino acid that is complete should show you this.
Why 2-butene show geometric isomerism while 1-butene does not?
2-butene show geomatric isomerism because each double bond carbon atom has two different group
What are the isomers of 1-chloro-1-fluorocyclopropane?
This is only one compound and does not show isomerism.
Why do alkenes show cis-trans isomerism?
Restricted rotation of the carbon-carbon double bond.
Optical isomerism in aldehydes and ketones?
The carbonyl group present in aldehydes or ketones itself is optically inactive but if a carbon attached to carbonyl group is asymmetric (attached to four different groups or atoms) then such compound may show to enantiomers as there are two enantiomers of CH3-CHCl-CHO.
What is the difference between positional isomerism and functional isomerism?
structural isomer explain the change in the arrangement of atoms around carbon atom even normal or iso-structure. But the functional isomer show the change in the functional group of compounds
