During glycolysis, a glucose molecule with six carbon atoms is converted into two molecules of pyruvate, each of which contains three carbon atoms. For each molecule of glucose, two molecules of ATP are hydrolyzed to provide energy to drive the early steps, but four molecules of ATP are produced in the later steps.
<span> </span>During
the follicular phase, granulosa cells secrete estrogen, which stimulates
secretion of gonadotropin-releasing hormone (GnRH), which then increases
production of luteinizing hormone (LH).
The
follicular phase is the phase of the menstrual cycle, during which follicles in
the ovary mature and it ends with ovulation.
