Salam Saadi

Name: Salam Saadi.

Block: C

Biology Higher Level

Absolom Museve

Table (1): Female hormones’ concentrations in one menstrual cycle.

Part A: The hormones of the menstrual cycle

a) In the first step we have to compare the concentrations of LH and FSH, which is in the following graph.

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Figure (1): Compares the concentrations of LH and FSH

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Figure (3): A correlation graph tha illustrates the relationship between Oestradiol and FSH

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Figure (4): A correlation graph tha illustrates the relationship between progesterone and FSH

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Figure (5): A correlation graph tha illustrates the relationship between oestradiol and LH

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Figure (6): A correlation graph tha illustrates the relationship between progesterone and LH

b)

We can conclude from the processed data that it is possible to see a negative correlation between oestradiol and FSH which is in, (figure (3) ), in the same time there is a negative corleation also between progesterone and FSH (figure (4)). From figure (5), we can see that there is a positive correlation between the oestradiol and LH, and from figure (6) we can see that there is a negative correlation between progesterone and LH but this correlation is very feeble .

Ovulation has most likely occurred in the 14th day of the mestrual cycle because it is the 14th day aftet menstruation had started. Menstruation most likely have begun in the first five days of the cycle, and this can be recognized from the LH and FSH concentrations because in the first five days of the cycle the hormones concentrations were suitable for menstruation. The best time for conception to succed would be from the 15th day till the 27th after ovulation has taken place. The graph below illustrates this information.

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Figure(7): Summarizes the time of the events in a menstrual cycle

The safe period is known to be the period between menstruation and ovulation, which in this case...