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How many amino acids will be in the first amino acid in every growing polypeptide?
If a polypeptide contains 9 peptide bonds, how many amino acids does it contain?
Does changing the sequence of nucleotides always result in a change in the sequence of amino acids?
This is actually false. DNA strands that codes for amino acids do so using 3 nucleic acids to encode an amino acid. Since there are 4 nucleic acids with 3 positions each, there are 64 possible nucleic acid "words". There are only 20 amino acids that are directly coded by these 3-nucleic-acid-words. All 64 "words" are valid. but the number of nucleic acid "spellings" that code for a particular amino acid varies from 1 to 6. There are many mutations where one or more changes to a nucleic acid sequence will not change the protein being made; so long as the changes are simply different "spellings" of the same amino acid. A statistical example: There are around 57,000 different "spellings" of the first 10 amino acids in human serum albumin that will produce the protein correctly.
How many amino acids in food?
Your body can synthesize most of the 21 amino acids that you need to make protein, with the exception of nine essential amino acids (histadine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, and valine) that must come from your food. The important amino acids in foods are called the essential amino acids because the body can not synthesize them. These are nine in number.
What determines the identity of an amino acid in a proteins?
Amino acids play central roles both as building blocks of proteins and as intermediates in metabolism. The 20 amino acids that are found within proteins convey a vast array of chemical versatility. The precise amino acid content, and the sequence of those amino acids, of a specific protein, is determined by the sequence of the bases in the gene that encodes that protein. The chemical properties of the amino acids of proteins determine the biological activity of the protein. Proteins not only catalyze all (or most) of the reactions in living cells, they control virtually all cellular process. In addition, proteins contain within their amino acid sequences the necessary information to determine how that protein will fold into a three dimensional structure, and the stability of the resulting structure. The field of protein folding and stability has been a critically important area of research for years, and remains today one of the great unsolved mysteries. It is, however, being actively investigated, and progress is being made every day.As we learn about amino acids, it is important to keep in mind that one of the more important reasons to understand amino acid structure and properties is to be able to understand protein structure and properties. We will see that the vastly complex characteristics of even a small, relatively simple, protein are a composite of the properties of the amino acids which comprise the protein.Essential amino acidsHumans can produce 10 of the 20 amino acids. The others must be supplied in the food. Failure to obtain enough of even 1 of the 10 essential amino acids, those that we cannot make, results in degradation of the body's proteins-muscle and so forth-to obtain the one amino acid that is needed. Unlike fat and starch, the human body does not store excess amino acids for later use-the amino acids must be in the food every day.The 10 amino acids that we can produce are alanine, asparagine, aspartic acid, cysteine, glutamic acid, glutamine, glycine, proline, serine and tyrosine. Tyrosine is produced from phenylalanine, so if the diet is deficient in phenylalanine, tyrosine will be required as well. The essential amino acids are arginine (required for the young, but not for adults), histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, and valine. These amino acids are required in the diet. Plants, of course, must be able to make all the amino acids. Humans, on the other hand, do not have all the the enzymes required for the biosynthesis of all of the amino acids.Why learn these structures and properties?It is critical that all students of the life sciences know well the structure and chemistry of the amino acids and other building blocks of biological molecules. Otherwise, it is impossible to think or talk sensibly about proteins and enzymes, or the nucleic acids.
How many amino acids make up a protein in humans?
There 20 amino acids make up proteins in human body.10 out of 20 amino acids produced in body by it self and 10 must be suplied in diet
What produces protein in your body?
our body cam make protein in the form of amino acid there are twenty amino acid in which all can be synthesized but in the twenty 10 amino acid is synthesized by simple process and the other 10 takes a long process so that they shouled be taken by diet
At Ph 10 what charge would Zwitterion ion have?
it would depend on amino acid in question. pH above amino acid pI, zwitterion will carry net negative (-) charge. at pH below pI, zwitterion will carry net positive (+) charge. depending on the amino acid, some have more than one acidic or basic functional group. such functional groups can make the amino acid vary in net charge from 2- to 2+ if not more.
How many nucleotides are necessary to code for a polypeptide that is 200 amino acids long?
In the genetic code, a sequence of three nucleotides forms a codon, which codes for one amino acid. So for each amino acid, there are three nucleotides. Therefore, 600 nucleotides are needed to make 200 amino acids.
How many amino acids are coded for a c t c c t g a a?
Each codon is three bases long - and a codon codes for one amino acid. Therefore this strand (9 bases long) could code for 3 amino acids. (Except if the DNA code was ACT, this would create the codon UGA on the mRNA, which is a stop codon. The amino acid chain would therefore terminate at this point).
What is the minimum number of different types of tRNA molecules that must exist in one cell?
20, one for each type of different amino acid.
The typical American diet supplies approximately what percentage of protein as essential amino acid?
10 to 15
If the average molecular weight of one amino acid is 110 the molecular weight of a peptide made up of 10 amino acids is?
When a peptide of 10 amino acid will form there will be the evolution of 9 molecules of water,which amounts to 162(9*18),where 18 is the MW of water. Now a peptide is having 10 amino acids which means including all the molecules weight should be 110*10=1100 but we have to take out the weight of 9 water molecules for the final calculation .Therefore 1100-162 will be 938. So the answer is 938
How many amino acids will be in the first amino acid in every growing polypeptide?
If a polypeptide contains 9 peptide bonds, how many amino acids does it contain?
How do amino acids work in the digestive system?
Amino acids are the building blocks of proteins.Amino acid molecules tied up and make a protein chain in D.N.A. There are different kind of amino acids.The type of amino acids decide the shape of the protein to perform repair work in the cell of our different organ. human body can not produce amino acids. It ingested in our body through food.
What is the function of amino acid?
They make up proteins.
When was A Kind Of Alchemy created?
A Kind Of Alchemy was created on 2009-10-23.
What is a polymer that contains many different molecules of amino acids?
Even though there are some variants among biochemists, we can consider this: a chain or polymer consisted of 2 to 10 or 12 amino acids is called a peptide. A polymer formed by 12 to 20 or 25 amino acid chain is called a polypeptide. And a polymer of more than 20 or 25 amino acids is called a protein.
