composition and function of blood

• what body structure is blood , an organ a cell or a tissue


  a tissue
• what percentage of the blood plasma is water


  90
• what are examples of dissolved materials found in the blood plasma


  glucose,urea,hormones ,plasma proteins,soluble food molecules,amino acids ,fibrogen and antibodies
• what is the more scientific name for red blood cells

  erythrocytes
• what is the more scientific name for white blood cells

  leucocytes
• what is the more scientific name for platelets

  thrombocytes
• what type of proteins are transported in the blood plasma


  hormones ,antibodies and other proteins
• What are erythrocytes filled with?


  hemoglobin
• what are the important features of erythrocytes


  biconcave shape,doesn't contain a nucleus ,flexible shape
• what is the importance of a erythrocytes biconcave shape


  it increases the surface area
• what is the importance of a erythrocytes lack of a nucleus


  more room for haemoglobin
• what is the importance of a erythrocytes flexible shape


  it allows the cells to squeeze through capillaries
• what are the two types of leucocytes


  granulocytes and agranulocytes
• What are granulocytes?


  these have granular cytoplasm and lobed nuclei
• what is the function of granulocytes


  phagocytosis
• What are agranulocytes?


  they have a clear cytoplasm and a spherical nucleus
• what is the function of agranulocytes


  to produce antibodies and antitoxins
• what is the function of thrombrocytes


  blood clotting