Respiration vs. Combustion — What's the Difference?

The action or process of inhaling and exhaling; breathing. Also called ventilation.

Combustion, or burning, is a high-temperature exothermic redox chemical reaction between a fuel (the reductant) and an oxidant, usually atmospheric oxygen, that produces oxidized, often gaseous products, in a mixture termed as smoke. Combustion does not always result in fire, because a flame is only visible when substances undergoing combustion vapourise, but when it does, a flame is a characteristic indicator of the reaction.

An act of inhaling and exhaling; a breath.

The process of burning.

The action or process by which an organism without lungs, such as a fish or plant, exchanges gases with its environment.

A heat-producing chemical reaction in which a fuel combines with oxygen or with some other substance that behaves chemically like oxygen.

The oxidative process occurring within living cells by which the chemical energy of organic molecules is converted in a series of metabolic steps into usable energy in the form of ATP, involving the consumption of oxygen and the production of carbon dioxide and water as byproducts.

Violent anger or agitation

Any of various analogous metabolic processes by which certain organisms, such as anaerobic bacteria and some fungi, obtain energy from organic molecules without consuming oxygen.

(chemistry) The act or process of burning.

The process of inhaling and exhaling; breathing, breath.

A process whereby two chemicals are combined to produce heat.

An act of breathing; a breath.

A process wherein a fuel is combined with oxygen, usually at high temperature, releasing heat.

Any similar process in an organism that lacks lungs that exchanges gases with its environment.

(figuratively) Violent agitation, tumult.

The process by which cells obtain chemical energy by the consumption of oxygen and the release of carbon dioxide.

The state of burning.

The act of respiring or breathing again, or catching one's breath.

The combination of a combustible with a supporter of combustion, producing heat, and sometimes both light and heat.

Relief from toil or suffering: rest.

Violent agitation; confusion; tumult.

Interval; intermission.

A process in which a substance reacts with oxygen to give heat and light

The act of resping or breathing; the act of taking in and giving out air; the aggregate of those processes bu which oxygen is introduced into the system, and carbon dioxide, or carbonic acid, removed.

A state of violent disturbance and excitement;

The metabolic processes whereby certain organisms obtain energy from organic moelcules; processes that take place in the cells and tissues during which energy is released and carbon dioxide is produced and absorbed by the blood to be transported to the lungs

The act of burning something;

A single complete act of breathing in and out;

The bodily process of inhalation and exhalation; the process of taking in oxygen from inhaled air and releasing carbon dioxide by exhalation