The parts of the graph indicated at points C, D, and E represent



A) depolarization.

B) hyperpolarization.

C) the refractory period.

D) repolarization.

E) sodium channel activity.


D) repolarization.

Biology & Microbiology

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Which of the following elements is NOT responsible for a significant portion of the mass of living

organisms? a. O b. S c. N d. H e. C

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When eukaryotic DNA undergoes replication, DNA helicase opens many sites along the DNA molecule at which DNA replication initiates. These sites are called "origins of replication." In what way does having multiple sites of replication affect the process of DNA replication?

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Activation energy can be provided by the kinetic energy of moving molecules

Indicate whether the statement is true or false

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