BIO SCI 45 Lecture Notes - Lecture 2: Microorganism, Guanosine, Immunoglobulin Light Chain
13 Sep 2016
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Document Summary
Blood a system of circulating cells and fluids: transport of nutrients and oxygen to body tissues, elimination of waste and carbon dioxide, wound repair, protection from infection. Fluid portion of blood (plasma: sugars for energy metabolism in our tissues, clotting factors to stop blood loss, antibodies to fight infections. Cells and substances of the blood are responsible for protection from infection make up the immune system. The immune system protects us from a wide variety of infectious agents. Non-self: viruses very small subcellular agents, bacteria small, single-cell microorganisms (whooping cough and tuberculosis, protozoa more complex single-cell microorganisms (malaria and. Toxoplasma: fungi microorganisms exit as single cells or simple multicellular organisms (candida, multicellular parasites relatively large organisms (tapeworms) Altered-self: the immune system is also important to fighting cancer. Blood carried through body in vessels: heart is the pump, rhythmic contractions move blood. Arteries carry blood away from the heart to the body tissues.
