How many structural isomers are shown here?
A) one
B) two
C) three
D) four
Question 2
Copper atoms have a greater tendency to be reduced than iron atoms do. Was this good news or bad news for the Statue of Liberty, whose copper exterior was originally held together by steel rivets?
A) This was good news since the steel rivets prevented the copper from eroding.
B) Electrons will preferentially flow from the iron to the copper and then onto oxygen. Corrosion is thus accelerated around the interface of these two metals.
C) This combination of metals have no effect on each other and that is why engineers chose to use them together.
D) This combination of metals caused the copper to oxidize and turn green.
Conjunctivitis, with the characteristic “pinkeye” appearance. A yellow crusty exudate is also common
Desmosomes and gap junctions, as shown in heart muscle.
Fractures are diagnosed based on an X-ray of the broken bone. Shown here: a comminuted fracture of ...
The insulin receptor and its structural relationship to other transmembrane receptors with protein
Viruses, such as the hepatitis B virus shown here, need a host to survive and multiply
The structural genes of the lac operon are transcribed into a single polycistronic mRNA