Write the chemical formula showing the activity of succinate dehydrogenase
Ans:-
Succinate + FADH -<-----succinate dehydrogenase -----> fumarate + FADH2
Write the chemical formula showing the activity of succinate dehydrogenase
In a metabolic pathway, succinate dehydrogenase catalyzes the conversion of succinate to fumarate. The reaction is inhibited by malonic acid, a substance that resembles succinate but cannot be acted upon by succinate dehydrogenase. Increasing the amount of succinate molecules to those of malonic acid reduces the inhibitory effect of malonic acid. What role does malonic acid play with respect to succinate dehydrogenase? In a metabolic pathway, succinate dehydrogenase catalyzes the conversion of succinate to fumarate. The reaction is inhibited by...
Succinate Dehydrogenase is an enzyme used to produce an
intermediate product, fumerate, during the Krebs Cycle. The gene
(DNA) that encodes succinate dehydrogenase is found on a chromosome
in the nucleus. Fully describe the production, targeting/delivery
and activity of succinate dehydrogenase by a cell. Give as many
molecular details as you can. Be sure to include:
1. Where the gene is transcribed.
2. how the mRNA moves to the area where it will be
translated,
3. how and where where...
1.
Why would the homogenate fraction have the highest succinate
dehydrogenase activity and thus the most mitochondria ( more than
the S1,P1,S2 and P2 fraction).
SDH activity Initial Velocity (Abs./s) P1 Fractions Figure 2. The SDH of each fraction measured in velocity (Abs./sec). The H fraction had the highest initial velocity of 0.057 Abs./s while the P2 fraction had the lowest initial velocity of 0.0033 Abs./s.
Select the single best answer. To what class of enzymes does succinate dehydrogenase belong? Explain your answer. Succinate dehydrogenase is an oxodoreductase, because it catalyzes the oxidation of succinate to fumarate. Succinate dehydrogenase is a transferase, because it catalyzes, the oxidation of isoitrate to a ketoglutarate. Succinate dehydrogenase is a transferase, because if catalyzes the transfer of a phosphoryl group from GTP to ADP to make ATP. Succinate dehydrogenase is a hydrolase, because it catalyzes the addition of H_2 O...
Malonate is a competitive inhibitor of succinate dehydrogenase. If malonate is added to a preparation that contains all the enzymes necessary to oxidize pyruvate as a substrate, which of the following compounds would you expect to decrease in concentration? O Suecinylco Pyruvate Citrate Succinate Fumarate
Write the chemical formula of sodium hydrosulfite. and draw the expanded formula (i.e. showing all atoms and bonds) of luminol (5-amino-1,4- phthalazdione) and calculate its molecular weight.
11. Which enzyme is NOT part of the TCA cycle? A. Citrate synthase B. Succinate dehydrogenase C. alpha-ketoglutarate dehydrogenase D. Aconitase E. Pyruvate dehydrogenase
Which of the following is NOT a component of a eukaryotic chromosome? Nucleosomes Histones Succinate Dehydrogenase DNA
Why does a succinate dehydrogenase deficiency produce the same symptoms as a fumarase deficiency?
Electron transport chain. The enzyme succinate dehydrogenase is part of the citric acid cycle (Fig. 17.15) and the electron transport chain (Fig. 18.6). Calculate the free energy (ΔG) of the reaction catalyzed by succinate dehydrogenase under physiological conditions: 2 mM succinate, 0.5 mM fumarate, 2 mM FAD, and 0.2 mM FADH2. [Recall that ΔG = -n F ΔEo. See Table 18.1 for the relevant standard reduction potential (ΔEo).]