Cysteine
(Science: amino acid) The only amino acid to contain a thiol (SH) group. In intracellular enzymes the unique reactivity of this group is frequently exploited at the catalytic site. In extracellular proteins found only as – cystine in disulphide bridges or fatty acylated.
The sequence of amino acids determines the type of protein. Protein is synthesized according to the sequence of nucleoti..
Dinosaurs represented a major turn in the evolutionary development of organisms on Earth. The first dinosaurs were presu..
Proteins and minerals can be derived from various dietary sources. They are essential for the proper growth and developm..
Autotrophs flourished, absorbing carbon and light. Soon after, primitive life forms that could assimilate oxygen thrived..
Human intelligence provided the means to utilize abstract ideas and implement reasoning. This tutorial takes a further l..
This lesson explores the impact of biosecurity threats, and why they need to be identified and managed. Examples to incl..
