There are 20 different kinds of amino acids. Adult humans can only produce 11 of them, so the other nine must be consumed via diet. The amino acids that humans cannot produce are called essential amino acids because they are needed for the body to function.Know More
The essential amino acids are histidine, threonine, isoleucine, methionine, leucine, lysine, phenylalanine, tryptophan, and valine. Arginine's nature as an essential amino acid in children is debated, some sources considering it essential and some considering it semi-essential. The nonessential amino acids are alanine, asparagine, aspartic acid, cysteine, glutamic acid, glutamine, glycine, proline, serine and tyrosine. All amino acids are used by both plants and animals to build proteins for muscle and chemicals meant for signaling within the body.
Essential amino acids can be obtained by eating plant protein. Plants, unlike animals, are able to produce all their amino acids by themselves. However, not all of the amino acids are always found together in the same plant tissue. Frances Moore Lappe, an influential writer on vegetarian nutrition, recommends that different sources of plant protein be combined to produce what she calls a "complete" protein containing all essential amino acids, but this is not strictly necessary. Of course, protein from animals contains all essential amino acids naturally.Learn More
Cobalt(II) nitrate is an inorganic salt with the chemical formula of Co(NO3)2, or CoN2O6. It is also known as cobalt dinitrate. In this ionic compound, a single positive cobalt atom is attracted to two molecules of NO3 to form a reddish, powdery solid. It is formed by cobalt compounds interacting with nitric acid.Full Answer >
The purpose of paper chromatography is to separate a mixture into its various components. Using a sample that is a mixture of several highly colored components, such as ink or leaf pigments, allows the scientist to see the components as they separate. With samples that do not display colors, other means of detection are necessary.Full Answer >
Starch consists of carbon, hydrogen and oxygen. Starch is formed from glucose monomers linked together with dehydration reactions, giving the formula (C6H10O5)n, where "n" is the number of glucose monomers bonded together.Full Answer >
An autotroph is an organism that synthesizes food from inorganic substances by using chemical energy or light, according to the American Heritage Dictionary. Types of autotrophs include some kinds of bacteria, green plants and algae.Full Answer >