WJEC A Level Biology
WJEC A Level Biology 4.1 Sexual Reproduction in Humans Exam Questions
Free WJEC A Level Biology exam questions on 4.1 Sexual Reproduction in Humans, with mark schemes. Covers the reproductive systems, gametogenesis, fertilisation, implantation and hormonal control.
4.1 Sexual Reproduction in Humans exam questions
1 question pack of real past exam questions with its mark scheme. Answer every question without notes, then mark your answers line by line against the mark scheme.
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WJEC A Level Biology Flashcards (Anki & Quizlet)
Every answer is written in mark scheme wording, so you learn exactly what examiners give marks for. Use them on Anki or Quizlet, then test yourself with the questions on this page.
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About WJEC A Level Biology 4.1 Sexual Reproduction in Humans
This topic covers human reproduction from gamete formation to pregnancy.
What you need to know
- Reproductive systems Structure and function of the male and female reproductive organs.
- Gametogenesis Spermatogenesis and oogenesis by mitosis, growth and meiosis.
- Fertilisation The acrosome reaction, cortical reaction and fusion of nuclei.
- Hormones FSH, LH, oestrogen and progesterone control the menstrual cycle; hCG maintains the corpus luteum in pregnancy.
Common mistakes in 4.1 Sexual Reproduction in Humans
- Saying oogenesis produces four eggs.
- Mixing up FSH and LH roles.
- Forgetting the cortical reaction prevents polyspermy.
Try three 4.1 Sexual Reproduction in Humans exam-style questions
1. Describe the role of the acrosome. (2 marks)
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It releases enzymes (1) that digest the zona pellucida so the sperm can penetrate the egg (1).
2. Explain the role of LH in the menstrual cycle. (2 marks)
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A surge in LH triggers ovulation (1) and the development of the corpus luteum (1).
3. Explain why oogenesis produces one functional egg. (2 marks)
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Divisions are unequal (1), so most cytoplasm goes to one cell and the others form polar bodies (1).
4.1 Sexual Reproduction in Humans FAQs
What does Sexual Reproduction in Humans cover?
Reproductive systems, gametogenesis, fertilisation, implantation and hormones.
Do I need the menstrual cycle hormones?
Yes, FSH, LH, oestrogen and progesterone and their interactions.
What does hCG do?
It maintains the corpus luteum so progesterone keeps the uterus lining in early pregnancy.
Revise this topic with flashcards: WJEC A Level Biology Flashcards, with mark scheme answers for Anki and Quizlet.
