Bioenergetics Flashcards
Gibbs free energy is used to determine the feasibility of a reaction
Of Gibbs free energy is Lee than 0 then the reaction is feasible
What are the stages of metabolism
Digestion
Anabolism with Catbolic intermediates
Oxidative breakdown in mitochondria
ism
What role does FAD and FMN play in the electron transport chain
They carry either one or two electrons
What role does NAD+ and NADH play in the electron transport chain
They accept two electrons and 1 proton
What are exergonic reactions
Reactions in which there is a release of energy
What are endergonic reactions
They are reactions that absorb energy
At what value of ΔG is there equilibriium in a reaction
At 0
There is no net release or absorption of energy
What are low energy compounds?
Compounds that yield energy greater than -25kJ/mol or -7.3 kcal / mol
What are high energy compounds also called?
High energy phosphates
Which high energy compound does not contain a phosphate group?
Acetyl CoA
Electron carriers in the mitochondrion
Cytochrome C
Co enzyme Q
break
Funfact:
NADH is involved in catabolic reactions whilst NADPH is involved in anabolism
How are enol phosphates formed?
When a phosphate group attaches to a hydroxyl group
In acyl phosphates; a reaction is formed between
A carboxylic acid group and phosphate group
How are guanido phosphates formed?
By the attachment of a phosphate group to a guanidine
An important compound with a guanidine phosphate bind is
Phosphocreatine
What reaction occurs between the phosphate groups in a pyrophophate?
Condensation reaction, releasing water(H2O)
A thioester bond is formed as a result of a reaction between?
A thiol and a carboxylic acid group
The second law of thermodynamics
In all natural processes, the total entropy of a system always increases
