biology 2 0.0 / 5 ? BiologyGCSEAQA Created by: tamsin pearceCreated on: 10-05-13 18:32 what is the function of the valves in the heart? valves prevent the backflow of blood 1 of 8 what is thedifference in structure between an artery and a vein? arteries have thicker walls,veins have valves along their length and arteries do not. 2 of 8 why are stents used? to open up blood vessels that have been narrowed by fatty deposits 3 of 8 give an example of a gas transported by plasma? co2 4 of 8 what is the function of platelets? they help blood to clot at the site of a wound 5 of 8 why is plasma given to patients? to increase blood volume when a lot of blood has been lost in a patient 6 of 8 what is the advantages of an artificial heart? the ydo not need to match the persons tissue,avaliable when not enough donors 7 of 8 what are the names of the two transport tissues in the flowering plants? xylem and phloem 8 of 8
Comments
No comments have yet been made