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level: Level 1

Questions and Answers List

level questions: Level 1

Question	Answer
transportation, regulation and protection	blood functions
maintain blood osmotic pressure- the pressure that helps keep water in blood). a important blood buffer	albumin
they bind viruses, bacteria and other foreign substances called antigens and destroys them	globulins
involved in blood clotting. includes fibrinogen and prothrombin	inactive coagulation proteins
mainly to carry oxygen	red blood cells function
biconcave disk. increased surface area for rapid entry and exit of oxygen by diffusion. flexible structure for moving through narrow capillaries.	red blood cell structure
normally balanced with rate of destruction of old blood cells	red blood cell production
a protein in RBC responsible for transporting oxygen to tissues	hemoglobin
fragments of cells with no nucleus and are enclosed in a peice of cell membrane. used for blood clotting. they form platelet plugs	platlets
use blood vessels for transport but slip through walls of blood vessels and move through lymphatic systems, skin, lungs and spleen.	WBC location
defend against disease by bacteria, viruses, parasites, toxins, cancer and damaged cells	WBC function
neutrophils, eosinophils and basophils	granulocytes
monocytes and lymphocytes	agranulocytes
reduces effects of inflammation in cases of an allergic reaction. if a person has a raised eosinophil count they may have an allergy or parasitic infection	eosinophils
damaged tissue attract them which leaves blood capillaries. there they release histamine. this may result in allergic reaction	basophil
fasted of all white blood cells to respond to tissue damage by bacteria	neutrophils
slower to reach the site of infection but arrive in larger numbers. they destroy microbes and clean up dead tissue following an infection	macrophages