cell specialization proteins

Proteins - Proteins, which constitute about 10 to 12% of the cell contents, are macromolecules having a significant role in the metabolism of a cell. Proteins are polymers of amino acids. Each protein is a linear, unbranched, polypeptide m..

Responsible for muscle contraction for movement and locomotion Example : Myosin Harmones Some harmones are proteins. Harmones regulate body functions Example : Insulin Structural Proteins form parts of cells and tissues Example : Collagen Protective ..

Biological function of proteins - Proteins perform essential and specialized functions in living cells. Proteins are primarily responsible for the structure and strength of the body. Some proteins act as enzymes, hormones, blood clotting f..

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 prese..

.8 - Cell Structure of Cyanobacteria The planktonic forms contain gas vacuoles in their cells to help in floating. Some cyanophycean members possess special types of cells called heterocysts, as in Anabena and Nostoc. They are large, thick walled, round ..

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..

One GTP is hydrolysed to GDP as each successive amino acid-tRNA complex attaches to the A site of the ribosome. A second GTP is broken down to GDP as the ribosome moves to each new codon in the mRNA. One ATP is hydrolysed to AMP during amino acid activation. Thus, the formation of each peptide bond..

Simple epithelium may sometimes become modified for some specific functions. Two such modifications are very common, namely, ciliated epithelium and glandular epithelium. Ciliated epithelium is always a modification of columnar epithelium. Here, the cells are characterized by the presence..

Cell Structure Enzymes Prokaryotic cells, eukaryotic cells (including those from plants and animals) Viruses - complexity and general structure Central Dogma of molecular biology Role of the endoplasmic reticulum Golgi apparatus Usable energy captured fro..

Cell Structure Enzymes Prokaryotic cells, eukaryotic cells (including those from plants and animals) Viruses - complexity and general structure Central Dogma of molecular biology Role of the endoplasmic reticulum Golgi apparatus Usable energy captured fro..