What is your Blood Color??


1-Why does Blood looks blue when you see it through your skin? although it is red!!
2-Is everyone’s blood always the same color red?
You must want to know the answers!!

1-The blood always appears blue from outside in the vein under the skin. It is because of the absorption of the light of different wavelengths penetrating in your skin. The difference between capillary’s and vein’s blood color depends upon how recently blood gets oxygen.

2-Some Octupas, squids and snails= Blue Blood
Some Submarine worms= Pinkish Violet Blood
Some Skunks= Green Blood

Read on : https://www.facebook.com/the.bio.infos/posts/590070201065892
http://goo.gl/jYwFg2

Zinc..a starving agent for Streptococcus pneumoniae


Zinc

New research sheds light on exactly how zinc can ‘starve’ Streptococcus pneumoniae by preventing its uptake of manganese.

Manganese is essential for S. pneumoniae to be able to invade and cause disease in humans. The researchers identified that the bacterial transporter that normally binds to manganese (PsaBCA) can also bind to zinc. However, the smaller size of zinc means that when it binds to the transporter, the mechanism closes too tightly. This causes the ‘spring-hammer’ mechanisms of PsaCA to unwind too far and jam shut, and it becomes unable to take up manganese.

Reference:

http://goo.gl/wyyUrY

Use of E.coli (bacteria) for killing pathogens


E.coli

 

E. coli is best known for making people sick, but scientists have reprogrammed it to sense and kill off slimy groups of bacteria known as biofilms, which are responsible for hard-to-treat infections that occur in the lungs, bladder and on implanted medical devices.

Reference: http://bit.ly/1g4CQ3n

why hands and feet get wrinkled after too much time in water?


The wrinkles that form on people’s hands and feet after soaking in water may have evolved to help humans handle wet objects more efficiently.

Pruniness on hands

The only known fluorescent vertebrate


The proteins do not fluoresce through a chromophore like other animals. Instead, it only emits light when bound with bilirubin, which is toxic to humans in large quantities. This protein could be used to better diagnose diseases like jaundice and anemia.