Respiration in Organisms — Science STD 7 — Question
Gujarat BoardEnglish MediumSTD 7ScienceRespiration in Organisms1 Mark
MCQ
The most common substrate for respiration is:
A
Fats
B
Amino acids
✓
Glucose
D
Sucrose
✓
Answer
Correct option: C.
Glucose
The various organic substances such as carbohydrates, fats and proteins are respired completely to carbon dioxide and water are called respiratory substrates.
Under natural conditions only carbohydrates are used.
Glucose being the simplest monosaccharide hexose molecule acts as the chief respiratory substrate.
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