Respiratory Quotient Flashcards
1
Q
What is the equation for respiratory quotient RQ?
A
volume of CO2 released / volume of oxygen consumed
2
Q
What is the respiratory quotient for respiring glucose?
C6H12O6 + 6O2 -> 6H2O + 6CO2
A
6CO2 / 6O2 = 6 / 6 = 1 QR
3
Q
What can RQ be used to find out?
A
-which respiratory substrate an organism is using e.g. bacteria is a culture medium with different
respiratory substrates
- if an organism is respiring aerobically or anaerobically (RQ of 1+)
4
Q
What are humans RQ?
A
0.71 to 1
at rest, we are respiring both lipids and carbs
5
Q
What are plants RQ?
A
can have a low RQ
use co2 from respiration in photosynthesis
6
Q
What are lipids, proteins and carbs RQs?
A
lipids - 0.7
proteins - 0.9
carbs - 1.0
aerobically - 1+
kj / enerrgy is from high to low
