A glucose transporter changes shape when it binds to a molecule of glucose. The shape change moves glucose down its concentration gradient to the opposite side of the membrane, where it detaches from the transport protein. What does this illustrate?
a. facilitated diffusion
b. passive diffusion
c. active transport
d. energy fueled pump
e. open channel transport
a
You might also like to view...
Stars with masses between 0.4 and 4
a. undergo thermonuclear fusion of hydrogen and helium, but never get hot enough to ignite carbon. b. undergo thermonuclear fusion of hydrogen, but never get hot enough to ignite helium. c. produce type-I supernovae after they exhaust their nuclear fuels. d. produce type-II supernovae after they exhaust their nuclear fuels. e. undergo carbon detonation.
Will the full moon's rising time for an observer at 40°N on February 1 be the same, earlier, or later than the rising time for an observer at the equator?
By what factor is the self-inductance of a solenoid changed if only its number of coil turns, N, is doubled?
a. 8 c. 4 b. 1/2 d. 2
Derive the energy balance equation for a corner control volume in a three-dimensional steady conduction problem with heat generation in a rectangular coordinate system. Assume an adiabatic boundary condition and equal node spacing in all three dimensions.
GIVEN
- Three-dimensional steady conduction in a rectangular coordinate system, corner boundary control
volume with specified temperature boundary condition
FIND
(a) Energy balance equation for the control volume
SKETCH
