In this article we will discuss about the Meaning and Types of Carbohydrates. Meaning of Carbohydrates: Carbohydrates are polyhydroxy aldoses, ketoses and their condensation products. Aldoses bear terminal aldehyde or —CHO group (e.g., glyceraldehyde, xylose, ribose, glucose, galactose) while ketoses have an internal ketone or —CO— group (e.g., dihydroxy acetone, erythrulose, ribulose, xylulose, fructose, sedoheptulose). The term carbohydrate is derived [...]
In this article we will discuss about the Meaning and Types of Fatty Acids. Meaning of Fatty Acids: Fatty acids are organic acids having hydrocarbon chains that end in a carboxylic group (—COOH). Hydrocarbon chains may be straight or have ring structure. Some fatty acids also possess hydroxyl groups. Length is 4-24 carbons. The common fatty acids have 16 or [...]
In this article we will discuss about the Structure and Functions of DNA. Structure of DNA: DNA or deoxyribose nucleic acid is a helically twisted double chain polydeoxyribonucleotide macromolecule which constitutes the genetic material of all organisms with the exception of riboviruses. In prokaryotes it occurs in nucleoid and plasmids. This DNA is usually circular. In eukaryotes, most of the [...]