Respiratory Substrate


 
 
Concept Explanation
 

Respiratory Substrate

Respiratory Substrate : The organic substances undergoing oxidative breakdown during respiration are called ‘respiratory substrates’. The most common example is glucose, which is obtained from digestion of carbohydrate.

binom{Starch,Glycogen}{Polysaccharide} overset{Digestion}{rightarrow}Glucose overset{Oxidation}rightarrow binom{Energy}{ATP} + CO_2 + HO

By the definition, Polysaccharide is a carbohydrate (e.g. starch, cellulose, or glycogen) whose molecules consist of a number of sugar molecules bonded together.

Hence, we can say that Glucose and oxygen react together in cells to produce carbon dioxide and water and releases energy. 

Sample Questions
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Question : 1

Which of the following are correct ?

(a) The organic substances undergoing oxidative breakdown during respiration are called ‘respiratory substrates’.

(b) The most common example of respiratory substrate is glucose, which is obtained from digestion of carbohydrate.

Right Option : C
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Question : 2

Which of the following are correct ?

(a) The inorganic substances undergoing reductive breakdown during respiration are called ‘respiratory substrates’.

(b) Polysaccharide is a carbohydrate whose molecules consist of a number of sugar molecules bonded together.

(c) Glucose and oxygen react together in cells to produce carbon dioxide and water and releases energy. 

Right Option : C
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Question : 3

The most common example of respiratory substrate is ___________________ , which is obtained from digestion of carbohydrate.

Right Option : B
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