题目内容

To study the initiation of action potential, we can simplifying the Hodgkin-Huxley model into a one-dimensional system based on all but which of the following assumptions? 43. (Part 15, medium)105-W5

A. The potassium channel is neglect because of its slow dynamics.
B. The inactivation gate of the sodium channel is neglect because of its slow dynamics.
C. The membrane leak current is removed because it is too fast.
D. The activation gate of the sodium current is replaced by its asymptotic value because it is extremely fast.

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How many equilibrium points does a INa,p model have and what are there stability? 45. (Part 15, easy) 105-W5

A. One, stable.
B. Two, two unstable and one stable.
C. Two, one unstable and two stable.
D. Three, all are stable.

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Which of the following statements is not a correct procedure of finding the local stability of a one dimensional dynamical system? 48. (Part 16, medium) 105-W5

A. Find the fix points.
B. Linearize the system
C. Find the slope at the fix point.
D. Perform a Fourier transformation.

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A one-dimensional system is said to be undergoing a saddle-node bifurcation if all but which of the following conditions is satisfied? 50. (Part 16, easy) 105-W5

A. Non-hyperbolicity.
B. Parabolicity.
C. Non-degeneracy.
D. Transversality.

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What is the condition for eigenvalues and eigenvectors of a matrix M to exist? *54. (Part 17, easy) 105-W5

A. The determinant of M is non-zero.
B. The matrix M has to be a diagonal matrix.
C. (M-) is not invertible.
D. Any matrix has eigenvalues and eigenvectors.

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