Bacteria: Basics and Habitat

Bacteria can be found in soil, water, acidic hot springs, radioactive waste, and the deep biosphere of Earth's crust.

Bacteria are mostly free-living organisms often consisting of one biological cell.

The study of bacteria is known as bacteriology, a branch of microbiology.

<p>Bacteria play a vital role in many stages of the nutrient cycle by recycling nutrients and the fixation of nitrogen from the atmosphere.</p> Signup and view all the answers

<p>Most bacteria are in the gut, though there are many on the skin.</p> Signup and view all the answers

<p>Antiarrhythmic agents are used to suppress abnormally fast rhythms, such as atrial fibrillation, supraventricular tachycardia, and ventricular tachycardia.</p> Signup and view all the answers

<p>The cardiac myocyte action potential is divided into 5 phases.</p> Signup and view all the answers

<p>The Vaughan Williams classification was introduced by Miles Vaughan Williams.</p> Signup and view all the answers

<p>The sharp rise in voltage ('0') corresponds to the influx of sodium ions.</p> Signup and view all the answers

<p>The classification of antiarrhythmic agents is considered imprecise because many of the agents have multiple modes of action.</p> Signup and view all the answers