The graphs illustrate changes in the levels of two hormones, A and B, which are involved in the development of the endometrium, during the human female menstrual cycle - Leaving Cert Biology - Question 4 - 2007
Question 4
The graphs illustrate changes in the levels of two hormones, A and B, which are involved in the development of the endometrium, during the human female menstrual cyc... show full transcript
Worked Solution & Example Answer:The graphs illustrate changes in the levels of two hormones, A and B, which are involved in the development of the endometrium, during the human female menstrual cycle - Leaving Cert Biology - Question 4 - 2007
Step 1
Name one of these hormones.
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Answer
One of the hormones is either oestrogen or progesterone.
Step 2
What happens in the ovary around day 14 of the cycle?
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Answer
Around day 14, ovulation occurs, where a mature egg is released from the ovary.
Step 3
Where is FSH produced?
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FSH, or Follicle-Stimulating Hormone, is produced in the pituitary gland.
Step 4
Give one function of FSH.
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One function of FSH is to stimulate the production or development of follicles (eggs) in the ovaries.
Step 5
Which graph, A or B, represents the hormone secreted by the corpus luteum (yellow body)?
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Answer
Graph B represents the hormone secreted by the corpus luteum (yellow body).
Step 6
Draw a line graph in the space above A and B to illustrate the changes that take place in the thickness of the endometrium over the course of the cycle.
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Answer
The line graph should show that the thickness of the endometrium decreases from day 1 to day 5, followed by an increase after day 5.
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