term1 Definition1term2 Definition2term3 Definition3
Please sign in to your Google account to access your documents:
Carbon dioxide travels in the mammalian blood
70% is converted into hydrogen carbonate ions
23% combines with haemoglobin and travels as carbaminohaemoglobin
7% dissolves directly into the plasma
Oxygen travels in the mammalian blood
Water in blood...
Travels in forms of cytoplasm,interstitial fluid and lymph
Salts in mammalian blood is carried as...
Positive and negative ions
Nitrogenous waste...
Is transported through blood in a diluted form- urea
Explain the adaptive advantage of haemoglobin
Organisms with blood containing haemoglobin are able to deliver oxygen to cells more efficiently.
Human body adapts to what is effectively oxygen deprivation by increasing heart rate, breathing rate and the number of red blood cells.
Arteries...
Have thick but elastic walls.
Made of three layers: endothelium- lining, smooth muscle-contract the vessel and connective tissue- allows for expansion.
Veins...
Made of three layers like arteries.
Contain valves that prevent the back flow of blood.
Capillaries
Allow for diffusion of materials through their walls to reach the cells found in the tissues.
Carbon dioxide is a waste product and must be removed to maintain the normal pH balance of blood.
Need help typing ? See our FAQ (opens in new window)
Please sign in to create this set. We'll bring you back here when you are done.
Discard Changes Sign in
Please sign in to add to folders.
Sign in
Don't have an account? Sign Up »
You have created 2 folders. Please upgrade to Cram Premium to create hundreds of folders!