Monthly Archives: January 2010

30 Jan

Helminths are multicellular eukaryotic animals. Many are parasitic. Helminths can be dioecious (male and female individuals) while some are hermaphroditic (having male and female reproductive organs). The definitive adult harbors the sexually mature adult helminth while intermediate hosts may be … Continue reading

26 Jan

I’m not talking about pirates; however I am going to talk a little bit about Plankton, that can be found in the Ocean. Plankton is carried through the ocean through the current. Plankton consists of various microscopic creatures. Did you … Continue reading

22 Jan

Algae are photosynthetic autotrophs, they use light to convert atmospheric carbon dioxide into carbohydrates for energy. The body of the multi-cellular alga is a thallus, which may collectively function as holdfasts to anchor them. They often have stemlike stipes and … Continue reading

19 Jan

Ok, this topic interests me a lot. Did you know that in the history of Forensic Science dates back thousands of years? Fingerprinting was one of it’s first applications. n 1835, Scotland Yard’s Henry Goddard became the first person to … Continue reading

18 Jan

GMF Filters, like cellulose filters are depth filters; filtration is accomplished throughout the filter, not just the surface. Glass microfiber filters are used when a high filtration efficiency is required and a high loading capacity is needed. GMF filters have … Continue reading

15 Jan

Protozoa are on-celled eukaryotic organsims that mostly feed on bacteria and small particulate nutrients. They are classified by their means of motility. Protozoa reproduce asexually by fission, budding, or schizogony. Schizogony involves the fission of the nucleus prior to cell … Continue reading

12 Jan

What is a fat cell? Adipocytes, which is a connective tissue that has also known as lipocytes and fat cells, are the cells that primarily compose adipose tissue, specialized in the manufacturing and storing of fat. There are two types … Continue reading

11 Jan

One of the most common items in the lab is the ever-present cellulose filter paper. Filter papers are depth filters – they retain particles within the filter matrix not just on the surface like membrane filters. Not all filter paper … Continue reading

08 Jan

An adenovirus is a medium sized virus in the range of 90-100nm. This virus is non-enveloped and has a double stranded linear DNA genome. The strand of DNA is between 26 and 45 Kbp allowing it to have theoretically, between … Continue reading

07 Jan

Microscope optical systems suffer from the same defects as all other lens systems. Among these are various forms of chromatic aberration and spherical aberration. Chromatic aberration is the failure of a lens or a lens system to focus all colors … Continue reading