Quiz 9 Flashcards
HIV is the virus that causes AIDS. In the mid-1990s, researchers discovered an enzyme in HIV called protease. Once the enzyme’s structure was known, researchers began looking for drugs that would fit into the active site and block it. If this strategy for stopping HIV infections were successful, it would be an example of what phenomenon?
Competitive inhibition
Which of the following statements about enzyme function is true?
Enzymes increase the rate of chemical reactions by lowering activation energy barriers.
Which of the following statements describes the first law of thermodynamics?
Energy cannot be created or destroyed.
When chemical, transport, or mechanical work is done by an organism, what happens to the heat generated?
it is lost to the environment
What is the name of the thermodynamic barrier that must be overcome before products are formed in a spontaneous reaction?
activation energy
Which of the following is an example of potential rather than kinetic energy?
a molecule of glucose
