The theoretical maximum net gain of ATP per molecule of glucose metabolized aerobically in eukaryotes is ________.
A. 2
B. 32
C. 85
D. 38
Answer: D
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Immediately after an action potential passes along an axon, it is not possible to generate a second action potential. Thus, we state that the membrane is briefly _____
A) hyperexcitable B) refractory C) fully depolarized D) above threshold E) at the equilibrium potential
During an action potential, sodium ions
A. rush out of the cell, switching the potential to +35 mV. B. rush into the cell, switching the potential to ?70 mV. C. rush into the cell, switching the potential to +35 mV. D. rush out of the cell, switching the potential to ?70 mV. E. rapidly move in and out of different parts of the neuron, oscillating potential between ?50 and +35 mV.
Action potentials ____
a. can move up or down an axon, away from or towards the cell body b. move in a one way direction towards the cell body c. move in a one way direction away from the cell body d. can jump from cell to cell e. occur only once
Suppose that both of your parents have Huntington's disease, which is caused by a dominant allele, and are both heterozygous for the disease. What are the odds of you having the disorder?
a. 100% b. 75% c. 50% d. 25%