1-What are monoclonal antibodies? a. antibodies produced in vitro b. antibodies that recognize a single epitope on an antigen c. antibodies that one species can produce d. antibodies produced by a single organism 2-The respiratory membrane is found at the junction between the alveoli and capillaries. At the respiratory membrane: a. red blood cells in the capillary give up carbon dioxide and pick up oxygen b. lung cells in the alveolus give up their oxygen to the red blood cells in the capillary c. red blood cells in the capillary give up their oxygen and pick up carbon dioxide d. carbon dioxide and oxygen pass freely in both directions 3-Osmotic pressure is created by the presence of salts and plasma proteins. a. False b. True