Sun June 03, 2012 By: Devansh Verma

Differentiate between the following: (1)Respiration in plants and animals. (2)Aerobic and anaerobic respiration (3)Inhalation and Exhalation

Expert Reply
Mon June 04, 2012
Respiration in plants and animals:
Respiration in plants is a passive process, which means the breathing occurs on a cellular level, not by active muscular movements. Respiration in animals is an active process of inhaling oxygen and exhaling carbon dioxide using muscular movements and energy.
Plants do not possess a well-developed respiratory system like most animals. Plants mainly breathe through pores in their leaves called stomata.
Plants take in carbon dioxide and give out oxygen, whereas animals take in oxygen and give out carbon dioxide.
Unlike plants, most animals use a circulatory system to transport respiratory gases to different parts of the body.



Inhalation is a process where you take in air i.e. oxygen from the external environment, through the air ways, and into the alveoli.

Exhalation is breathing out of carbon dioxide out of the bronchial tubes, through the airways, to the external environment

It is an active process

It is a passive process

Caused by muscular contraction mainly of the diaphragm and intercostal muscles

Mainly caused by elastic recoil of the diaphragm and relaxation of the intercostal muscles

Aerobic and anaerobic respiration:

Aerobic Respiration

Anaerobic Respiration

Here oxygen is used

Here oxygen is not needed

It occurs in cytoplasm and mitochondria

It occurs in cytoplasm only

38 mol ATP is produced per mol glucose

2 mol ATP is produced per mol glucose

Its stages are glycolysis, pyruvate oxidation, Krebs cycle

Only glycolysis occurs here.


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