Respiratory Substrates Flashcards
1
Q
What substrates are used if glucose isn’t as the main respiratory substrate?
A
Carbs , lipids, proteins
2
Q
When are amino acids respired?
A
When all other substrates have been used up, they have essential functions elsewhere
3
Q
How much energy is released for each respiratory substrate? (in kJ/g)
A
Carbs - 15.8
Lipids - 39.4
Protein - 17.0
4
Q
Why is there less energy released for different respiratory substrates?
A
- Different number of hydrogen atoms available when molecules are broken down
- (Less H atoms, less energy)
