Each of the following is a correct relationship between action potential phase and channel status except
A) depolarization; Na+ channels open.
B) repolarizing phase; Na+ channels closed.
C) repolarizing phase; K+ channels open.
D) hyperpolarizing phase; Na+ channels open.
E) hyperpolarizing phase; K+ channels open.
Answer: D
You might also like to view...
Which of the following is a false statement about plant secondary metabolites?
A. Some can be used to treat human diseases. B. Some can be poisonous to humans. C. The activity of certain medicines is due to secondary metabolites. D. Some of them can cross the placenta during pregnancy. E. They are too unpredictable to use in pharmaceutical research.
All of the following are TRUE of adaptive traits
EXCEPT a. they allow individuals to adjust to the environment. b. they spread faster through populations of asexually reproducing organisms. c. they spread faster through populations of sexually reproducing organisms. d. variety results from mixing of the genetic traits. e. all of these are true.
Red muscle fibers are red because they contain large amounts of ____
a. glucose b. ribosomes c. ATP d. myoglobin e. hemoglobin
DNA is synthesized in which stage of the typical cell cycle?
A. prophase B. G1 C. S D. G2