Hormones, the menstrual cycle and reproduction

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Question 16

The graph below shows the changes in blood concentration of four hormones ( $W$ , $X$ , $Y$ , and $Z$ ) during a typical 28-day human menstrual cycle.

Menstrual cycle hormones

Which of the following options correctly identifies hormones $Y\,$ and $Z$ , and describes the feedback effect of a high concentration of hormone $Z\,$ on the pituitary gland?

Hormone $Y$ : Estrogen; Hormone $Z$ : Progesterone; Feedback: $Z$ inhibits FSH and LH secretion.

Hormone $Y$ : Progesterone; Hormone $Z$ : Estrogen; Feedback: $Z$ stimulates FSH and LH secretion.

Hormone $Y$ : Estrogen; Hormone $Z$ : Progesterone; Feedback: $Z$ stimulates FSH and LH secretion.

Hormone $Y$ : Progesterone; Hormone $Z$ : Estrogen; Feedback: $Z$ inhibits FSH and LH secretion.

Hormones, the menstrual cycle and reproduction Questions

GCSE
Biology
Hormones, the menstrual cycle and reproduction

GCSE
Biology Edexcel
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