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3 marksThe Reproductive System

CSEC Human and Social Biology · May/June 2013 · Paper 2 · Question 4(c)(ii)

Figure 4 shows the menstrual cycle of a human female, highlighting changes in hormone levels, the uterus, and the ovary.

Describe the changes that take place with progesterone levels AFTER ovulation, if pregnancy occurs, and if pregnancy does NOT occur.

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Other parts of this question

  1. 4(a)(i)State which type of cell division results in identical offspring.[1 mark]
  2. 4(a)(ii)State the number of chromosomes that will be found in the daughter cells of mitosis.[1 mark]
  3. 4(a)(iii)In which type of cell does mitosis take place?[1 mark]
  4. 4(b)(i)State the name of the event during meiosis in which there is the exchange of small parts of DNA between homologous chromosomes.[1 mark]
  5. 4(b)(ii)State the source of the homologous chromosomes and the importance of the event named in (b)(i).[2 marks]
  6. 4(c)(i)Describe the changes occurring in the menstrual cycle from Day 0 – Day 5 and Day 6 – Day 14.[4 marks]
  7. 4(d)Outline how follicle-stimulating hormone (FSH) controls the production of oestrogen.[2 marks]

More practice: the rest of this paper · more The Reproductive System questions · all CSEC Human and Social Biology past papers