lecture 3

Question 1

major fuel stores in the body

Answer 1

muscle glycogen (0.4%)
liver (0.2%)
fat (85%)
protein (4.5%)

only liver and fat contribute to bloodstream
protein not used unless starving, muscle glycogen only receives or uses own storage but doesn’t contribute to bloodstream

Question 2

important sources of fuel for ATP

Answer 2

fat, polysaccharides, protein broken down into fatty acids/glycerol, sugars, amino acids

conversion of smaller builiding blocks into acetyl coA

Question 3

anabolic vs catabolic

Answer 3

anabolic - endergonic (consume), makes bonds
catabolic - exogonic (release), breaking bonds

Question 4

components of Gibbs free energy

Answer 4

enthalpy (delta H) = change in work done and heat released

entropy (delta S) = change in disorder

change in enthalpy - T times change in entropy = change in gibbs free energy (delta G)

Question 5

laws of thermodynamics

Answer 5

1.) energy is not created or destroyed it just changes form
2.) overall, entropy (disorder) is always increasing