Heavy chain
(Science: protein) in general, the larger polypeptide in a multimeric protein. Thus the immunoglobulin heavy chain is of 50 kd, the light chain of 22 kd, whereas in myosin the heavy chain is very much larger (220 kd) than the light chains (~20 kd).
The body is comprised of different elements with hydrogen, oxygen, carbon, and nitrogen as the major four. This tutorial will help you understand the chemical composition of the body. This will come in handy when considering the various interactions between cells and structures. ..
Plants are responsible for incredible feats of molecular transformation. Plant processes, such as photosynthesis, photophosphorylation, chemiosmosis, carbon fixing reactions, respiration, are presented in this tutorial...
Genes are expressed through the process of protein synthesis. This elaborate tutorial provides an in-depth review of the different steps of the biological production of protein starting from the gene up to the process of secretion. Also included are topics on DNA replication during interphase of the cell cycle, DNA mutation and repair mechanisms, gene pool, modification, and diseases...
Freshwater ecosystem is comprised of four major constituents, namely elements and compounds, plants, consumers, and decomposers. Read this tutorial to learn about each of them and their role in a freshwater ecosystem...
This tutorial looks at the relationship between organisms. It also explores how energy is passed on in the food chain and ecological pyramids...
Earth was created around 4.5 billion years ago and life began not long after. Primitive life likely possessed the element carbon within them. It is presumed that one of the family of compounds that first came up was the amino acids, the building blocks of protein. Over time, these life forms become more and more complex. Find out more about how life likely began on Earth...