Question

Which of the metabolites/biomolecules is common to the respiration-mediated breakdown of fats, carbohydrates and proteins?   

Options

• Fructose-I, 6-bisphosphate 

• Pyruvic acid 

• Acetyl-CoA 

• Glucose-6-phosphate  

Answer 1

Acetyl-CoA 

Explanation:

Carbohydrates → Simple Sugars → Pyruvic acid → Acetyl Co A 

Proteins → Amino acids → Pyruvic acid → Acetyl Co A

Fats → Fatty acids and glycerol → Acetyl Co A