Question

What is the difference between digestion and respiration ?

Answer 1

Answer:

As nouns the difference between respiration and digestion

is that respiration is the process of inhaling and exhaling; breathing, breath while digestion is the process, in the gastrointestinal tract, by which food is converted into substances that can be utilized by the body.

Answer 2

Answer:

Digestion is the process of breaking down of large food molecules into simpler nutrients like glucose,amino acids and fatty acids.

Respiration(biochemical definition) is the metabolic process in which the glucose along with oxygen is used to produce energy by various enzyme catalysed biochemical reactions. In general sense,respiration is the production of energy from this simpler nutrients(fatty acid or glucose).

So digestion helps to obtain the substrate/source which is then used to produce energy via respiration.

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