Metabolism Flashcards
Why does the dye diffuse, why not stay as a single drop?
diffusion
Do we want everything diffused in our body
No
Law of thermodynamics
in a closed system energy equilibrates and entropy increases
Are humans an open or closed system
open
Kinetic Energy
Thermal, electrical, electromagnetic
Potential Energy
stored energy waiting
Ex gravitational, nuclear, mechanical chemical
Exergonic
spontaneous, reactants make the products and energy is released. racing toward equilibrium Reactants = products + energy
Endergonic
Energy requiring, reactants + energy = products
Activation energy barriers
What do enzymes do?
they lower the activation barrier
Law of Mass Action/ Lashatae’s rule
Oxygen exchange with hemoglobin
example of this law
Carbon dioxide exchange with bicarbonate
ex of law
Everyday you turn over an amount of ATP equivalent to our body weight t/f
t
Cellular activities that require ATP
Transport across membranes
almost everything
Creatine Phosphate
increases the concentration of ATP and makes more ATP
reaches exhaustion later
doesn’t do anything unless you use ATP
is phosphocreatine long term
no
where do the Carbon in glucose go
in the CO2 you breathe out
What are the three phases of glycolisis
investment, cleavage, payoff
how many ch reactions in glycolisis
6 reactions broken into three phases
mitochondria resemble a football or gummy worm
gummy worm
mitochondria has a triple membrane t/f
f it has a double membrane
contains enzymes for the citric acid cycle and electron transport
mitochondria
What is the Linking step
converts pyruvate 3 carbon to Acetyl-CoA (2 carbon)
Produces 1 CO2 (1 carbon)
Produces 1 NADH
Krebs Cycle
for each Acetyl-CoA
1 ATP
3 NADH
1 FADH2
2 CO2
How many ATP are produced from 1 glucose
4 ATP
