Question 1
The element to which oxygen (O2) binds in a hemoglobin molecule is ___________.
◦ nitrogen
◦ carbon
◦ iron
◦ potassium
◦ phosphorous
Question 2
The existence of differential drug sensitivity serves to reinforce the idea that
◦ many people carry genetic defects.
◦ each individual is biologically and biochemically unique.
◦ drugs need to be more closely regulated.
◦ metabolic blocks are a widespread phenomenon.
◦ none of these is reinforced.