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Cellular Macromolecules Introduction
Introduction - The living cells contain specific macromolecules with a high molecular weight and a poor solubility. Generally in a cell, macromolecules are represented by polysaccharides, proteins, nucleic acids and enzymes. These compounds are formed by polymerisation of microm..
tRNA
The tRNA carries a specific amino acid from the amino acid pool to the mRNA on the ribosomes to form a polypeptide, hence its name. The tRNAs form about 15% of the total RNA of a cell. Its molecule is the smallest and has the ..
Proteins - Introduction
Proteins are the high molecular mass complex biopolymers of amino acids and organic compounds that are most important to life. They are essential for growth and maintenance of life. They are high molecular weight, nitrogen rich substances that are present all living cells of ani..
Introduction
Biomolecules are complex organic molecules. These molecules form the basic structural constituent of a living cell. The organic compounds such as amino acids, nucleotides and monosaccharides serve as building blocks of complex biomolecules. The important biomolec..
Translation-Synthesis of Proteins
Translation is the mechanism by which the triplet base sequence of an mRNA guides the linking of a specific sequence of amino acids to form a polypeptide (protein) on ribosomes. All the proteins a cell needs are synthesized by the cell within itse..
Ammonia
This is the main nitrogenous compound produced due to oxidative or deamination of amino acids during protein metabolism. Ammonia is highly toxic and it is important that it is expelled out of the body as and when it is formed as it can cause severe harm to the organis..
Intestinal Juice
It is secreted by the ileum region of the small intestine. Here the final stage of the digestion of different kinds of food takes place. It contains maltase to convert maltose to glucose; sucrase to convert sucrose to glucose and fructose; lactase to convert lactose to glucose; and galactose and e..
Iso-electric Point
. If an a -carbon atom has four different groups attached to it. Then it is asymmetric and it exhibits optical isomerism. Except glycine all amino acids exhibit optical activity. Therefore two stereo isomers are formed and they are mirror images to each other. They app..
. If an a -carbon atom has four different groups attached to it. Then it is asymmetric and it exhibits optical isomerism. Except glycine all amino acids exhibit optical activity. Therefore two stereo isomers are formed and they are mirror images to each other. They app..Ammonia
This is the main nitrogenous compound produced due to oxidative or deamination of amino acids during protein metabolism. Ammonia is highly toxic and it is important that it is expelled out of the body as and when it is formed as it can cause severe harm to the organis..
Cellular Macromolecules
The living cells contain specific macromolecules with a high molecular weight and a poor solubility. Generally in a cell, macromolecules are represented by polysaccharides, proteins, nucleic acids and enzymes. These compounds are formed by polymerisation of micromolecules ..
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