CHEMISTRY

  Reviewed by GL

Homework II: chemistry In our society alloys, plstics and polymers are very important because they have become a basic need for industries an factories in order to produce essential materials and artefact. For example alloys are used in car factories to produce cars rings and plastics to produce computers, cell phones, microwaves, TVs, etc.

Medicine: -gloves of latex -

Industries: -Synthetic papers -Flam resistant material worn by NASA astronauts

Sports: -Synthetic football clothes -Sport shoes

Reviewed by GL

=__**QUARKS**__ = = =  Neutrons, protons and electrons aremade up of some smallest particles called quarks. There are six kinds of quarks: U-up D-down S-strange B-bottom T-top C-charm

There are also antiquarks and they have negative charges and quarks have positive charges. There are other smallest particles that made up atoms called leptons. They can be bigger than quarks and samller too, for example the electron is a kind of lepton. The other leptons are tau, muon and neutrinos. The tau and muon leptons have some electrical charges and are heavier than the neutrinos. The neutrinos leptons have very little charge and have very little mass, they are hard to find and they are so stable that when they pass through the atmosphere they don't react with anything.  -library.thinkquest.org/05aug/01087/homepage.html

Mitochondrial disease caused by mifunction in mitochondria
Mitochondria are organelles that are found in cells they are incharge of the energy production.These tiny organelles have their own DNA. Deffective mitochondria in muscle is now known to be responsable of several kinds myopathy (muscle disease).This caused weakness and excercise intolerance. Mitochondrial disease disorders related to the mitochondria. the effects of mitochondrial disease can be varied since the distribution of defective DNA may vary from organ to organ. Some minor deffects can cause only exercise intolerance with no serious disability. Mitochondrial disease are worst when the deffective mitochondria is located in muscles, cerebrum or nerves.

-wikipedia -http://www.faqs.org/abstracts/Health/Mitochondrial-myopathy-with-a-defect-of-mitochondrial-protein-transport.html