Hormones, the menstrual cycle and reproduction

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48

Question 4

Figure 1 shows the levels of four different hormones during a typical 28-day menstrual cycle. A line graph showing the relative concentration of LH, FSH, oestrogen, and progesterone during a 28-day menstrual cycle. FSH and LH peak sharply at day 14. Oestrogen peaks around day 12 and then remains moderately high. Progesterone rises after day 14, peaks at day 21, and then drops rapidly leading up to day 28.

Explain how the levels of progesterone, oestrogen, FSH, and LH would differ after day 21 if the woman became pregnant.

[4]

Hormones, the menstrual cycle and reproduction

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48

Question 4

Figure 1 shows the levels of four different hormones during a typical 28-day menstrual cycle. A line graph showing the relative concentration of LH, FSH, oestrogen, and progesterone during a 28-day menstrual cycle. FSH and LH peak sharply at day 14. Oestrogen peaks around day 12 and then remains moderately high. Progesterone rises after day 14, peaks at day 21, and then drops rapidly leading up to day 28.

Explain how the levels of progesterone, oestrogen, FSH, and LH would differ after day 21 if the woman became pregnant.

[4]

Hormones, the menstrual cycle and reproduction

Question 4

Hormones, the menstrual cycle and reproduction Questions

Hormones, the menstrual cycle and reproduction

Question 4

Hormones, the menstrual cycle and reproduction Questions