When a car burns gasoline, much of the energy is released in the form of heat. Which of the following best describes this process in relation to the first law of thermodynamics?
A. Energy is conserved.
B. Energy is always used up in reactions.
C. All energy comes from the sun.
D. Energy can be changed from one form to another.
E. Energy is often destroyed.
Answer: D
You might also like to view...
In addition to inhibiting the transpeptidation reaction in cell wall synthesis, penicillins may also destroy bacteria by
A. inhibiting protein synthesis. B. inhibiting DNA replication. C. stimulating proteins to form holes in the plasma membrane. D. None of the choices are correct.
Which of the following is NOT a way that bacteria benefit humans?
A. production of foodstuffs such as cheese B. production of antibiotics C. breaking down wastes, toxins, explosives, and petrochemicals D. killing harmful insects E. transferring nutrients across intestinal membranes
Like other members of their phylum, jellyfishes have specialized stinging cells called ____ as part of
their epidermis, which they use to paralyze small prey.
a. choanocytes b. polyps c. cnidocytes d. flame cells e. tentacles
When a piece of liver is dropped into hydrogen peroxide, the peroxide bubbles vigorously as a result of what reaction?
a. peroxide being broken into water and oxygen b. peroxide is destroying germs in the liver c. more peroxide is being created by the liver d. liver and peroxide are joining together to make a new protein