Question

What is the sequence between succinyl coA and GTP/ATP in mammals?

1) Succinyl coA is converted to GTP/ATP
2) GTP/ATP is converted to succinyl coA
3) Succinyl coA and GTP/ATP are produced simultaneously
4) Succinyl coA and GTP/ATP are not related

Answer 1

In mammals, succinyl coA is converted to GTP/ATP in step 5 of the citric acid cycle.

Step-by-step explanation:

In mammals, succinyl coA is converted to GTP/ATP. This conversion occurs in step 5 of the citric acid cycle (also known as the Krebs cycle), which takes place in the mitochondria. In this step, a high-energy bond is formed and a phosphate group is substituted for coenzyme A, resulting in the production of GTP or ATP.

There are two forms of the enzyme involved in this step, depending on the type of animal tissue. In tissues that use large amounts of ATP, such as heart and skeletal muscle, ATP is produced. In tissues with a high number of anabolic pathways, such as liver tissues, GTP is produced.