Pacemaker Activity Refers to Spontaneous Depolarizations Resulting from

question 275

Multiple Choice

Pacemaker activity refers to spontaneous depolarizations resulting from

• A)shifts in passive ionic fluxes accompanying
• B)cyclical changes in Na+-K+ pump activity
• C)automatic changes in channel permeability
• D)both a and b
• E)both a and c

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Definitions:

Observations

The act of noting and recording something with instruments or the senses as a part of scientific research or empirical study.

Paradigm Shift

A fundamental change in the basic concepts and experimental practices of a scientific discipline.

Falsifiable Hypothesis

A hypothesis that can be demonstrated to be false by an experiment or observation, a critical aspect of the scientific method.

Prokaryotes

Single-celled organisms that lack a nucleus and membrane-bound organelles, including bacteria and archaea.