Inhoudsopgave
Waar vind de Krebscyclus plaats?
Dit proces vindt plaats in de mitochondriën van de cel. De citroenzuurcyclus is een serie van chemische reacties in een kring. Door de citroenzuurcyclus, ook wel krebscyclus genoemd, leveren de eiwitten, vetten en koolhydraten uiteindelijk energie.
Is ATP synthase a channel protein or an enzymatic protein?
ATP synthase is considered an enzyme that synthesizes ATP, but it also creates a channel for H + ions to pass through into a lower concentration area. My question is could ATP synthase be considered a channel protein as well as enzymatic protein?
What is ataTP synthase?
ATP synthase is an enzyme that creates the energy storage molecule adenosine triphosphate (ATP).
Do bacteria have an ATP synthase?
Some bacteria have no F-ATPase, using an A/V-type ATPase bidirectionally. Yeast ATP synthase is one of the best-studied eukaryotic ATP synthases; and five F 1, eight F O subunits, and seven associated proteins have been identified. Most of these proteins have homologues in other eukaryotes.
Where are ATP synthases found in cells?
The ATP synthases comprise a very large group of highly conserved enzymes that are found in the bacterial cytoplasmic membranes, the thylakoid membranes of chloroplasts, and the inner membranes of mitochondria.
What is the difference between exergonic and endergonic?
Endergonic (from the prefix endo-, derived from the Greek word ἔνδον endon, “within”, and the Greek word ἔργον ergon, ” work “) means “absorbing energy in the form of work.” The activation energy for the reaction is typically larger than the overall energy of the exergonic reaction (1).
What are endergonic reactions?
Endergonic Reactions. An endergonic reactions may also be called an unfavorable reaction or nonspontaneous reaction. The reaction requires more energy than you get from it. Endergonic reactions absorb energy from the surroundings.
What is the Gibbs free energy of endergonic reactions?
The change in the standard Gibbs Free Energy(G) of an endergonic reaction is positive (greater than 0). The change in entropy(S) decreases. Endergonic reactions are not spontaneous. Examples of endergonic reactions include endothermic reactions, such as photosynthesis and the melting of ice into liquid water.
Why is phosphorylation endergonic?
Answer: Phosphorylation is endergonic because it requires energy to form an additional bond with the new phosphate group.