Energy metabolism Review Flashcards
what is used as energy for short bursts of energy such as running a 100 meter dash
creatine phosphate system
where does the energy from bonds come from initially
chlorophyl/photosynthesis/the sun.
What is the main creation of glycolysis
2 pyruvate molecules
what are the two different ways that pyruvate can be used
lactate dehydrogenaase or krebs cycle
Lactic acid is used as _______________________ and allows the Krebs cycle to continue to __________________________ without _____________
Lactic acid is used as an energy source and allows the Krebs cycle to continue to turn without being backed up by the creation of too many pyruvate molecules.
How many ATP per pyruvate molecule after the krebs cycle
1
what is the main use of krebs cycle
creation of CO2 and NADH and FADH
where does FADH and NADH get turned to energy and how
the eletron transport chain through pulling off hydrogens and creating water
What allows the krebs cycle to turn
the NAD+ and FAD+
what happens to pyruvate is krebs cycle doesnt turn
it turns to lactic acid
What is oxidadtive phosphorylation
the flow of electrons through the electron transport chain
What is beta oxidation
the process of breaking down fatty acid chains into smaller molecules such as acetyl coa that can be used for energy
What does 1 molecule of glycerol go through to break down and how many ATP are yeilded
compare this to a breakdown of 3 molecules of 18 carbon fatty acid chains
1 molecule of glycerol undergoes glycolysis and krebs cycle and yeilds 19 ATP
3 molecules of 18 c fatty acid undergoes beta oxidation and krebs cycle and produces over 440 ATP
How are proteins broken down for energy (3 ways)
Deamination yeilds either alanine (which can be converted to pyruvate), glycine (which can be converted to acetyl coa) or glutamate (which can go directly into the krebs cycle)
Glycolysis occurs in the ________ of the cell and converts glucose to _________
Glycolysis occurs in the cytoplasm of the cell and converts glucose to ATP and Pyruvate
