Cell and Protein Synthesis | Cell (Biology) | Dna
What Is Protein Synthesis Search Now! Over 85 Million Visitors.
This 3-D structure is essential for the correct functioning of the protein. A membrane transport protein, for example, is embedded in the cell membrane and is in the shape of a tunnel or passageway from one side of the membrane to the other. Its job is to allow certain molecules that fit correctly to pass into or out of the cell. Obviously, the transport protein's shape is going to be very important so that it can do its job correctly! A misformed transport protein may have a "blocked" passageway, meaning that important molecules could not pass into or out of the cell. Another example of a class of proteins whose shape is crucial for their proper function is enzymes.
When a cell makes a protein it is called protein synthesis.
What happens is that the protein folds into a 3-D structure where most of the hydrophobic amino acids are pointing into the inside of the structure (and away from the water) and where most of the hydrophilic amino acids are on the surface, pointing out into the water. Therefore, the types of amino acids and the order in which they are located in the chain, will determine how the protein will ultimately fold in water, and therefore what its 3-D structure will be in your body.
Ribosomes and Protein Synthesis | Biology I
It is important to note that the tRNA is reused and collects another specific amino acid. Once the protein has been mRNA may move to another ribosome to make a further protein or it can be broken down into free nucleotides to be reused.
Protein Synthesis - Notes - Biology | Mrs. McComas
After translation, the protein passes into the channels of the rough endoplasmic reticulum (ER) for transportation. The protein is then passed from the rough ER to the Golgi apparatus inside tiny fluid-filled sacs, called vesicles. The Golgi apparatus is a system of , which are responsible for the modification, processing, and packaging of the proteins. The protein may have a carbohydrate added, to form a glycoprotein. The Golgi apparatus packages the protein in a secretory vesicle, which fuses with the cell membrane and releases the protein from the cell.