This is the first published
Electronic Newspaper for
2 August 2000 : Volume 2 Issue 28
2 August 2000
the Sites of Special Scientific Interest using this link:
Words of the Week
cell (in biology) The structural and functional unit of all living organisms. Cell size varies, but most cells are microscopic (average diameter 0.01–0.1 mm). Cells may exist as independent units of life, as in bacteria and protozoans, or they may form colonies or tissues, as in all higher plants and animals. Each cell consists of a mass of protein material (see *protoplasm) that is differentiated into a jelly-like substance (see *cytoplasm) and a *nucleus, which contains DNA. The protoplasm is bounded by a *cell membrane, which in plant and bacterial cells is surrounded by a *cell wall. There are two main types of cell. Prokaryotic cells (bacteria) are the more primitive. The nuclear material is not bounded by a membrane and chemicals involved in cell metabolism are associated with the cell membrane. Reproduction is asexual and involves simple cell cleavage. In eukaryotic cells the nucleus is bounded by a nuclear membrane and the cytoplasm is divided by membranes into a system of interconnected cavities and separate compartments (organelles), e.g. *mitochondria, *endoplasmic reticulum, *Golgi apparatus, *lysosomes, and *ribosomes. Reproduction can be either asexual (see *mitosis) or sexual (see *meiosis). Plants and animals consist of eukaryotic cells but plant cells possess *chloroplasts and other *plastids and bear a rigid cellulose cell wall.
cell body (perikaryon) The part of a *neurone that contains the nucleus. The cell processes that are involved in the transmission and reception of nervous impulses (the axon and the dendrites respectively) develop as extensions from the cell body.
cell division The formation of two daughter cells from a single mother cell. The nucleus divides first and this is followed by the formation of a cell membrane between the daughter nuclei. In *mitosis the daughter nuclei are identical to the original nucleus; *meiosis results in daughter nuclei each with half the number of chromosomes in the mother cell nucleus.
cell membrane (plasmalemma;
plasma membrane) The semipermeable *membrane forming the outer limit
of a *cell. It consists mostly of protein and lipid. The membrane regulates
the flow of materials in and out of the cell and plays a role in the production
or assembly of the *cell wall or *capsule (when this is present).
Oxford University Press Copyright (c) 1994
The upsurge of EForums on all subjects (a few have been recommended before in these bulletins) are an important way in which the Internet will change the world. One controversy is the effect of pressure groups and professional media manipulators will move in on this field. Another is the Government's inclination to censor this anarchic media. This is just another subject will doubtless be a matter of heated debate.
Poem of the Week
leaps ashore the full sou'west
here the sea-fogs lap and cling,
Poem supplied by Ray Hamblett
More Information on Lancing (by Ray Hamblett) ***
this is a Saxon place name/word which is generally accepted to mean "groups
of people" and was originally thought to be indicative of the early Saxon
settlers. However, this theory is not shared by all Saxon historians, presumably
because this theory was based on the questionable evidence of the Saxon
Chronicle, and they preferred the more reliable evidence of burial finds
(from studies in Sussex). They think the suffix ton
Whereas all reports on this news page have to be checked for their authenticity, as far as possible, speculative discoveries like a Dolphin Fish in Plymouth Sound can be entered on the forum, and also discussions, queries, questions etc.
All the fish in the sea, and rivers
and lakes, streams of the world.
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Sponsorship is also available for the Adur Torpedo Electronic News Bulletin and the Shoreham-by-Sea web pages (which preceded the Adur Resource Centre web site), which would be more suitable for a local firm(s).
advertisement rules apply.
Adur Torpedo was written, designed and distributed by Andy Horton.
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and web site visitors).