5.20 Hormones and the menstrual cycle
6 exam questions worth 12 marks. Write your answer, open the mark scheme, then give yourself the marks you earned. Your answers are saved on this device.
0 / 12
Name the main male reproductive hormone and the organ that produces it.
Mark scheme
- testosterone (1)
- testes (1)
Model answer
Testosterone, made in the testes.
Which hormone causes an egg to mature in the ovary?
Choose one answer.
Correct Not quite: the answer is FSH
Mark scheme
B (FSH)
Model answer
B: FSH (follicle stimulating hormone).
Describe what happens during the first 14 days of the menstrual cycle.
Mark scheme
- (days 1-4) the uterus lining breaks down / menstruation / period (1)
- (days 5-14) the uterus lining builds up / thickens (1)
- an egg matures (in the ovary) (1)
- (about day 14) ovulation / egg released (1)
Max 3
Model answer
In days 1 to 4 the uterus lining breaks down and is lost (menstruation). From day 5 the lining builds up again while an egg matures in an ovary, and at about day 14 the egg is released (ovulation).
Give the job of LH and of progesterone in the menstrual cycle.
Mark scheme
- LH: stimulates the release of an egg / ovulation (1)
- progesterone: maintains the uterus lining (1)
Model answer
LH stimulates the release of the egg (ovulation). Progesterone maintains the lining of the uterus.
Give two secondary sexual characteristics caused by oestrogen during puberty.
Mark scheme
Any two from: breasts develop / hips widen / pubic or armpit hair grows / menstruation begins / eggs mature (1 each)
Model answer
Breasts develop and hips widen.
Explain why the uterus lining is maintained in the second half of the cycle.
Mark scheme
- progesterone (is released, which) maintains the lining (1)
- so a fertilised egg / embryo could implant (1)
Model answer
Progesterone maintains the lining so that, if the egg is fertilised, the embryo can implant in it.
Found a mistake?