Enzymes catalyze a reaction by ________.
A. increasing the activation energy of the reaction
B. increasing the amount of energy released by the reaction
C. decreasing the activation energy of the reaction
D. decreasing the amount of energy released by the reaction
Answer: C
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The two magnifying lenses found in a light microscope are the
A. basic and transverse. B. small and large. C. ocular and objective. D. simple and phase.
The significance of the Griffith, Avery, and Hershey-Chase experiments was that they demonstrated that
A. genes were located on chromosomes. B. DNA was the molecule of heredity. C. proteins were what genes were composed of. D. enzymes transformed bacteria.
Biological study brought about
A. the development of rockets. B. the atom bomb. C. vaccinations for diseases. D. Tay-Sachs disease.
The steroid hormone that coordinates molting in arthropods is _____
A) ecdysteroid B) glucagon C) thyroxine D) growth hormone