Posts tagged with body, cells, ADN, biology, technology

Human Body Facts

joi, februarie 28th, 2008

Another list?   Can you feel the pulse in your wrist? For humans the normal pulse is 70 heartbeats per minute. Elephants have a slower pulse of 27 and for a canary it is 1000! If all the blood vessels in your body were laid end to end, they would reach about 60,000 miles. Abraham [...]

Little known fact about the human body

luni, februarie 25th, 2008

The Human Body The human body is a machine that is full of wonder. This collection of human body facts will leave you wondering why we were designed the way we were. -Scientists say the higher your I.Q. The more you dream. -The largest cell in the human body is the female egg and the [...]

Life glue

luni, februarie 25th, 2008

part III The following answer was selected and edited by New Scientist staff Cells in the body are organised in tissues that are held together through a variety of molecular interactions. On the one hand, cells interact with each other. This is a very specific interaction mediated by various families of adhesion molecules called cadherins, [...]

Life glue

duminică, februarie 24th, 2008

part II   Heres what I learnt in college : Cell junctions help bind cells together. They are mostly found in the basal, lateral and apical cell surfaces of epithelial cells, but can be found in other tissues as well. There are 4 kinds doing the job at hand: A tight junction (zonula occludens) is [...]

Life glue

sâmbătă, februarie 23rd, 2008

part I   What causes cells to stick together in the human body rather than simply falling apart? McKenzie Gibson, Glasgow, UK       "Cells are keep together by means of a process called "cell adhesion". Single cells have special molecules in their surface that act as glue among them. These molecules are of [...]

Life glue

sâmbătă, februarie 23rd, 2008

part I   What causes cells to stick together in the human body rather than simply falling apart? McKenzie Gibson, Glasgow, UK       "Cells are keep together by means of a process called "cell adhesion". Single cells have special molecules in their surface that act as glue among them. These molecules are of [...]

Real time molecule viweing

vineri, februarie 22nd, 2008

Researchers make first direct observation of 3-D molecule folding in real time All the crucial proteins in our bodies must fold into complex shapes to do their jobs. These snarled molecules grip other molecules to move them around, to speed up important chemical reactions or to grab onto our genes, turning them on and off to [...]

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