lecture 22 - energy balance Flashcards
1
Q
what is the first law of thermodynamics
A
- the total energy within a system is constant
- energy can neither be destroyed or made, only transferred
1
Q
what is anabolism
A
building of complex molecules from numerous simple ones
2
Q
what is catabolism
A
breakdown of complex molecules into numerous simple ones
3
Q
under anaerobic conditions what can the citric acid cycle do
A
produce substantial amounts of ATP
4
Q
what are the units of energy and what does one produce
A
joule (J) = energy required to push against 1 Newton of force for 1 metre
5
Q
what is the RER and how is calculated
A
respiration exchange ratio = CO2 produced / O2 produced
- calculated by using indirect calorimetry
6
Q
what will increase your metabolic rate
A
- athletic training
- late stage of pregnancy
- fever
- drugs and caffeine
- hyperthyroidism
7
Q
what will decrease your metabolic rate
A
- malnutrition
- sleep
- drugs i.e B-blockers
- hypothyroidism
