Question

A) Write the overall reaction for step 5 of the TCA Cycle (succinyl-CoA -> succinate), showing structures for succinyl- CoA and succinate. Be sure to include the other molecules that take part in this step (there should be another reactant besides succinyl-CoA and two other products besides succinate).

B) Step 5 is an example of an acyl transfer reaction. Circle the atoms in succinyl-CoA that make up the acyl group being transferred.

Answer 1

Соо” to Ash CHG म - GSCOA Succinyl-COA o PO₂ Cuccinyl GDP Phosphat GTP - 1 succinate

to Succinyl phosphate es Frntermediate 25 67 DP = gitanosi'ne diphosphate 3. GTP guanosine triphosphate 4. In the first step CoA is substituted by hydrogen phosphate ! In the second step, Succinyl phosphate transfer its phosphoric Tadid residue on GDP so that GTP ( energy rich) and succinate is formed . Cool . This circle part is responsible for acyl transfer (stoo) elle मार E Scot) Succinyl-tot