The function of an enzyme is to ____
a. carry coded information to the rest of the cell
b. regulate chemical reactions within a cell
c. provide the basic building blocks of a cell
d. carry the genetic information of a cell
e. provide the structure and function of a cell
b
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If two vectors point in opposite directions, their cross product must be zero
A) True B) False
A rod with a positive charge is brought near a positively charged pith ball. The pith ball is suspended from an insulating string. The pith ball
A. will be attracted by the rod B. will be repelled by the rod C. will not be affected by the rod
The temperature of an ideal gas increases from 10°C to 300. K while remaining at constant pressure. What happens to the volume of the gas?
A) It increases by factor of 30. B) It decreases slightly. C) It decreases to one-half its original volume. D) It more than doubles. E) It increases slightly.
While running, a person dissipates about 0.6 J of mechanical energy per step per kilogram of body mass. If a 60-kg person runs with a power of 70 watts during a race, how fast is the person running? Assume a running step is 1.5 m long