Results for: Protein

Answered

In Biology

What is protein?

Protein consists of small molecules called amino acids, joinedtogether into long molecules called polypeptides. Each polypeptidehas a very specific sequence of amino acids. De… ( Full Answer )

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In Biochemistry

What is a protein?

A protein is a nutrient that supplies the body with energy forbuilding and repairing tissue and cells. From Wikipedia.com: Proteins are large organic compounds made of a…mino acidsarranged in a linear chain and joined together by peptide bondsbetween the carboxyl and amino groups of adjacent amino acidresidues. The sequence of amino acids in a protein is defined by agene and encoded in the genetic code. Although this genetic codespecifies 20 "standard" amino acids plus selenocysteine and - incertain archaea - pyrrolysine, the residues in a protein aresometimes chemically altered in post-translational modification.This can happen either before the protein is used in the cell, oras part of control mechanisms. Proteins can also work together toachieve a particular function, and they often associate to formstable complexes.[1] Like other biological macromolecules such as polysaccharides andnucleic acids, proteins are essential parts of organisms andparticipate in every process within cells. Many proteins areenzymes that catalyze biochemical reactions and are vital tometabolism. Proteins also have structural or mechanical functions,such as actin and myosin in muscle and the proteins in thecytoskeleton, which form a system of scaffolding that maintainscell shape. Other proteins are important in cell signaling, immuneresponses, cell adhesion, and the cell cycle. Proteins are alsonecessary in animals' diets, since animals cannot synthesize allthe amino acids they need and must obtain essential amino acidsfrom food. Through the process of digestion, animals break downingested protein into free amino acids that are then used inmetabolism. The word protein comes from the Greek word ÏÏÏÏÎµÎ¹Î¿Ï ( proteios ) "primary". Proteins were first described andnamed by the Swedish chemist JÃ¶ns Jakob Berzelius in 1838. However,the central role of proteins in living organisms was not fullyappreciated until 1926, when James B. Sumner showed that the enzymeurease was a protein.[2] The first protein to be sequenced wasinsulin, by Frederick Sanger, who won the Nobel Prize for thisachievement in 1958. The first protein structures to be solvedincluded hemoglobin and myoglobin, by Max Perutz and Sir JohnCowdery Kendrew, respectively, in 1958.[3][4] The three-dimensionalstructures of both proteins were first determined by x-raydiffraction analysis; Perutz and Kendrew shared the 1962 NobelPrize in Chemistry for these discoveries "Protein." Wikipedia, The Free Encyclopedia . 7 Dec 2008,14:33 UTC. 8 Dec 2008 . Or large moleculesthat contain carbon, hydrogen, oxygen, nitrogen,and sometimes sulfur Proteins can be defined as a nitrogenous compound composed of oneor long chains of amino acids. ( Full Answer )

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In Proteins

How can you get protein?

You can get protein by eating foods that are good sources of it. Some good examples are: poultry, fish, beans, eggs, milk, cheese, yogurt, and peanut butter.

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In Human Anatomy and Physiology

What do proteins do?

Proteins serve in two major roles. Some of them make up part of the structure of our bodies. Others are enzymes. An enzyme is a protein that works like a tool. It helps a part… ( Full Answer )

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In Nutrition

What does protein do for you?

Protein is necessary for the building and repair of body tissues. . It produces enzymes, hormones, and other substances the body uses. . It regulates body processes, such as… ( Full Answer )

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In Nutrition

What is protein in?

Generally everything, but i suppose your question is more concerned with what has the greatest concentration of protein in. The general rule of thumb is that protein is biolog… ( Full Answer )

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In Carbohydrates and Low-Carb Diets

Where can you get proteins?

First of all what do you need them for??? If its for growing muscle mass then i recommend you to get whey protein cocktails and drink them with water or milk.Drink them afte… ( Full Answer )

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In Carbohydrates and Low-Carb Diets

What does the protein do?

Protein we ingest is unfolded and broken down into its constituent amino acids. These amino acids are then used to make new protein that the body needs. This is why body build… ( Full Answer )

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In Carbohydrates and Low-Carb Diets

What proteins do?

What do proteins do?. Any of a group of complex organic macromolecules that contain carbon, hydrogen, oxygen, nitrogen, and usually sulfur and are composed of one or more cha… ( Full Answer )

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In Human Anatomy and Physiology

Where can you get protein?

You can get protein from meat and egg. Egg has the protein albumin in it.