What are the differences between physiological respiration and cellular respiration?

Question

Accepted Answer

Basis of differentiation

Physiological respiration

Cellular respiration

Definition

Is a physiological process which involves inhaling and exhaling air

Is the process of producing energy from glucose, when oxygen is present

Occurrence

Breathing occurs between the external environment and the body (in the lungs, nose, and diaphragm)

Cellular respiration occurs in cells and organelles (mitochondria)

Stages

Inhalation and exhalation

Glycolysis, TCA cycle, oxidative phosphorylation, and electron transport chain

Involvement of enzymes

Enzymes not required for breathing

Requires the use of enzymes

Voluntary or involuntary

Breathing can either be voluntary or involuntary

Cellular respiration is always involuntary

Energy production

Energy is not produced as a byproduct of breathing

Cellular respiration produces energy and waste products

Energy use

Breathing involves passive (expiration) and active processes (inspiration)

Cellular respiration is solely an active process

Type

Breathing is a physical process

Cellular respiration is a biochemical process

Function

The primary functions of breathing are gas exchange (exhale carbon dioxide) and ventilation

The primary functions of cellular respiration are gas exchange and break down of nutrients to form carbon dioxide, water, and energy

Basis of differentiation	Physiological respiration	Cellular respiration
Definition	Is a physiological process which involves inhaling and exhaling air	Is the process of producing energy from glucose, when oxygen is present
Occurrence	Breathing occurs between the external environment and the body (in the lungs, nose, and diaphragm)	Cellular respiration occurs in cells and organelles (mitochondria)
Stages	Inhalation and exhalation	Glycolysis, TCA cycle, oxidative phosphorylation, and electron transport chain
Involvement of enzymes	Enzymes not required for breathing	Requires the use of enzymes
Voluntary or involuntary	Breathing can either be voluntary or involuntary	Cellular respiration is always involuntary
Energy production	Energy is not produced as a byproduct of breathing	Cellular respiration produces energy and waste products
Energy use	Breathing involves passive (expiration) and active processes (inspiration)	Cellular respiration is solely an active process
Type	Breathing is a physical process	Cellular respiration is a biochemical process
Function	The primary functions of breathing are gas exchange (exhale carbon dioxide) and ventilation	The primary functions of cellular respiration are gas exchange and break down of nutrients to form carbon dioxide, water, and energy