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Sexual Reproduction in Humans · CAPE Biology Unit 1

158 past-paper questions on Sexual Reproduction in Humans, part of Reproductive Biology, from every CAPE Biology Unit 1 paper on Quelpr.

Practise Sexual Reproduction in Humans
  1. 2(a)3 marks· Biology · Unit 1 Q2 2(a)Write the circled symbol for EACH hormone on the graph in Figure 1 at the exact day where the hormone is at its maximum concentration during the menstrual cycle. (You may sketch in the graph lines to assist you if you…
  2. 2(b)(i)3 marks· Biology · Unit 1 Q2 2(b)(i)In the space provided below, at a magnification of 0.5, draw a plan diagram of the ovary in Figure 2 to show the distribution of the major tissues.
  3. 2(b)(ii)3 marks· Biology · Unit 1 Q2 2(b)(ii)Identify structures 1 to 6 in Figure 2.
  4. 2(c)1 mark· Biology · Unit 1 Q2 2(c)If the length of the human ovary is 3.5 cm, what is the magnification of your drawing in (b)(i)?
  5. 3(a)1 mark· Biology · Unit 1 Q3 3(a)Table 2 is an incomplete comparison of some features of a human ovum with some features of a spermatozoon.
  6. 3(a)(i)6 marks· Biology · Unit 1 Q3 3(a)(i)Make a detailed labelled drawing of the region highlighted by Box X in Figure 4 B.
  7. 3(a)(i)4 marks· Biology · Unit 1 Q3 3(a)(i)State FOUR structural differences observed between the ovum and the sperm.
  8. 3(a)(i)3 marks· Biology · Unit 1 Q3 3(a)(i)Identify the structures labelled A, B and C in Figure 2.
  9. 3(a)(i)2 marks· Biology · Unit 1 Q3 3(a)(i)Identify the structures labelled I, II, III and IV. I II III IV
  10. 3(a)(i)3 marks· Biology · Unit 1 Q3 3(a)(i)Complete Table 4 with respect to the features listed for spermatogenesis and oogenesis in humans.
  11. 3(a)(i)3 marks· Biology · Unit 1 Q3 3(a)(i)On the grid provided below, draw a bar chart to compare the concentration of mercury in maternal and foetal blood with the number of maternal amalgam fillings.
  12. 3(a)(i)6 marks· Biology · Unit 1 Q3 3(a)(i)Complete Table 2 by writing the missing information in the relevant spaces in the table.
  13. 3(a)(ii)3 marks· Biology · Unit 1 Q3 3(a)(ii)Using Figure 3 or Figure 4 as a guide, outline the key development stages of spermatozoa within the seminiferous tubule.
  14. 3(a)(ii)2 marks· Biology · Unit 1 Q3 3(a)(ii)State the function of EACH of the structures labelled X and Y.
  15. 3(a)(ii)4 marks· Biology · Unit 1 Q3 3(a)(ii)Based on features observed, comment, using two points, on how the ovum and the sperm are suited to their respective functions.
  16. 3(a)(ii)2 marks· Biology · Unit 1 Q3 3(a)(ii)State TWO conclusions based on the comparisons shown on the graph.
  17. 3(a)(ii)1 mark· Biology · Unit 1 Q3 3(a)(ii)State the ploidy of the nucleus of the cell shown in Figure 5.
  18. 3(a)(ii)3 marks· Biology · Unit 1 Q3 3(a)(ii)Outline the roles of follicle-stimulating hormone (FSH) and luteinizing hormone (LH) in the regulation of spermatogenesis.
  19. 3(a)(ii)3 marks· Biology · Unit 1 Q3 3(a)(ii)With reference to a specific function of the human ovum, discuss how its structure is suited to the stated function.
  20. 3(a)(iii)3 marks· Biology · Unit 1 Q3 3(a)(iii)Explain whether the movement of mercury from mother to foetus is an active or a passive process.
  21. 3(a)(iii)2 marks· Biology · Unit 1 Q3 3(a)(iii)State TWO reasons why a large number of mitochondria is present in the sperm cell.
  22. 3(a)(iv)2 marks· Biology · Unit 1 Q3 3(a)(iv)In Figure 5, the acrosome of the male sperm is an organelle. Name the type of organelle and describe its function.
  23. 3(a)(v)1 mark· Biology · Unit 1 Q3 3(a)(v)State the name given to the ovum as it is released from the ovary.
  24. 3(a)(vi)4 marks· Biology · Unit 1 Q3 3(a)(vi)In the box below, draw and annotate the structure of the ovum as it is released from the ovary.
  25. 3(b)6 marks· Biology · Unit 1 Q3 3(b)In the box below, make a plan drawing of the ovary to include the stage of the developing ovum just prior to release from the ovary.
  26. 3(b)2 marks· Biology · Unit 1 Q3 3(b)Explain why some scientists regard the ovum at the stage shown in Figure 3, to be a secondary oocyte.
  27. 3(b)2 marks· Biology · Unit 1 Q3 3(b)Complete Table 2 by inserting yes or no, to identify the key differences between the ovum and the sperm.
  28. 3(b)(i)3 marks· Biology · Unit 1 Q3 3(b)(i)Identify the structures labelled A, B and C and indicate whether EACH is of foetal or maternal origin. Write your answers in the following table.
  29. 3(b)(i)3 marks· Biology · Unit 1 Q3 3(b)(i)Calculate the actual length of the spermatozoon. Show the steps in your calculation.
  30. 3(b)(i)3 marks· Biology · Unit 1 Q3 3(b)(i)Identify and describe the main function of EACH of the structures labelled I, II and III.
  31. 3(b)(i)5 marks· Biology · Unit 1 Q3 3(b)(i)Identify the structures labelled A, B, C, D, and E in Figure 5.
  32. 3(b)(ii)2 marks· Biology · Unit 1 Q3 3(b)(ii)Outline TWO functions of the placenta.
  33. 3(b)(ii)2 marks· Biology · Unit 1 Q3 3(b)(ii)With reference to Figure 3, describe TWO ways in which a mature spermatozoon differs from an ovum.
  34. 3(b)(ii)2 marks· Biology · Unit 1 Q3 3(b)(ii)Comment on TWO roles of the structure labelled Y in the development of the foetus.
  35. 3(b)(ii)2 marks· Biology · Unit 1 Q3 3(b)(ii)Comment on the MAIN function of the structure labelled E.
  36. 3(b)(iii)4 marks· Biology · Unit 1 Q3 3(b)(iii)Comment on the importance of the amnion during foetal development. In your comment, give TWO effects of reduced levels of the amniotic fluid.
  37. 3(b)(iii)2 marks· Biology · Unit 1 Q3 3(b)(iii)Outline TWO ways in which the placenta acts as a protective barrier for the developing foetus.
  38. 3(c)1 mark· Biology · Unit 1 Q3 3(c)State ONE similarity between the ovum and the sperm.
  39. 3(c)(i)4 marks· Biology · Unit 1 Q3 3(c)(i)On the graph grid on page 11, plot a graph to show the relationship between sperm velocity and fertilisation.
  40. 3(c)(i)4 marks· Biology · Unit 1 Q3 3(c)(i)In the box below, draw and label a plan diagram of the section shown in Figure 4 as identified by the two lines in the lower part of the figure. Make your drawing two times the actual size of the section highlighted.
  41. 3(c)(ii)1 mark· Biology · Unit 1 Q3 3(c)(ii)Suggest a likely conclusion from the findings of this experiment.
  42. 3(c)(ii)1 mark· Biology · Unit 1 Q3 3(c)(ii)Name the next stage in the development of the highlighted section in Figure 4.
  43. 6(a)5 marks· Biology · Unit 1 Q6 6(a)Briefly describe FIVE main regions which make up the human female reproductive system.
  44. 6(a)3 marks· Biology · Unit 1 Q6 6(a)Give the names of THREE hormones which control sperm production. State the origin and effect of EACH.
  45. 6(a)10 marks· Biology · Unit 1 Q6 6(a)Describe the structure and function of the male reproductive system. An annotated diagram may be used.
  46. 6(a)(i)5 marks· Biology · Unit 1 Q6 6(a)(i)Discuss the biological basis for the rhythm method of contraception.
  47. 6(a)(i)5 marks· Biology · Unit 1 Q6 6(a)(i)Give a concise description of the key stages in the fertilization of a human secondary oocyte by a spermatozoon. Begin your account with the acrosome reaction.
  48. 6(a)(i)a)4 marks· Biology · Unit 1 Q6 6(a)(i)a)State the functions of EACH of the following in oogenesis in humans: gonadotrophin releasing hormone.
  49. 6(a)(i)b)4 marks· Biology · Unit 1 Q6 6(a)(i)b)State the functions of EACH of the following in oogenesis in humans: luteinising hormone.
  50. 6(a)(i)c)4 marks· Biology · Unit 1 Q6 6(a)(i)c)State the functions of EACH of the following in oogenesis in humans: follicle stimulation hormone.
  51. 6(a)(ii)2 marks· Biology · Unit 1 Q6 6(a)(ii)Briefly comment on the significance of the process of fertilization.
  52. 6(a)(ii)5 marks· Biology · Unit 1 Q6 6(a)(ii)Discuss the biological basis for the contraceptive pill method of contraception.
  53. 6(a)(ii)3 marks· Biology · Unit 1 Q6 6(a)(ii)Explain how these hormones function in males as compared to females.
  54. 6(b)8 marks· Biology · Unit 1 Q6 6(b)Complete Table 2 by comparing the structure and function of the following FOUR features in a human sperm cell with those of a secondary oocyte.
  55. 6(b)5 marks· Biology · Unit 1 Q6 6(b)With reference to the menstrual cycle, discuss how these pills exert their effect.
  56. 6(b)4 marks· Biology · Unit 1 Q6 6(b)Select TWO of the regions described in (a) above. For EACH region, explain how its function is unique to females.
  57. 6(b)4 marks· Biology · Unit 1 Q6 6(b)Describe the features of the human egg which enable it to carry out its function.
  58. 6(b)2 marks· Biology · Unit 1 Q6 6(b)Briefly comment on the role of the placenta as a guardian for the developing foetus.
  59. 6(b)7 marks· Biology · Unit 1 Q6 6(b)Gonadal hormones coordinate activities of the ovary and uterus in human females. Give a brief description of the THREE main phases in the uterine cycle and for EACH phase, comment on the role of gonadal hormones.…
  60. 6(b)4 marks· Biology · Unit 1 Q6 6(b)Starting with contact of sperm cells with follicle cells of the oocyte, outline the process of fertilization in the human reproductive system.
  61. 6(b)4 marks· Biology · Unit 1 Q6 6(b)Comment on why the same principles CANNOT be applied to develop a male hormonal contraceptive.
  62. 6(b)(i)3 marks· Biology · Unit 1 Q6 6(b)(i)Give a concise explanation of how combined oral contraceptives work to prevent pregnancy.
  63. 6(b)(i)4 marks· Biology · Unit 1 Q6 6(b)(i)Describe TWO major functions of the placenta.
  64. 6(b)(ii)5 marks· Biology · Unit 1 Q6 6(b)(ii)Suggest what advice should be given to the couple about the most appropriate way to use combined oral contraceptives. Include in your account, justification of your advice in relation to the physiological details…
  65. 6(b)(ii)4 marks· Biology · Unit 1 Q6 6(b)(ii)Discuss TWO ways in which maternal behaviour can affect foetal development.
  66. 6(c)6 marks· Biology · Unit 1 Q6 6(c)Discuss the principle of negative feedback mechanisms as applied to the secretion of follicle stimulating hormone and its role in the control of the menstrual cycle.
  67. 6(c)5 marks· Biology · Unit 1 Q6 6(c)Compare the structures of the egg and sperm. Relate the structural adaptations of the sperm to its ability to carry out digestion, use energy and move.
  68. 6(c)10 marks· Biology · Unit 1 Q6 6(c)The uterus provides a safe place where the foetus can develop. Compare the contributions the amnion and the placenta make to the safety and development of the foetus.
  69. 6(c)4 marks· Biology · Unit 1 Q6 6(c)Discuss TWO significant differences with respect to the timing of oogenesis and spermatogenesis.
  70. 6(c)(i)2 marks· Biology · Unit 1 Q6 6(c)(i)What structural features or conditions of the female reproductive system must sperm overcome in order to reach from the vagina to the fertilization site?
  71. 6(c)(ii)8 marks· Biology · Unit 1 Q6 6(c)(ii)For EIGHT contraceptive methods, comment on the structural or physiological means by which they prevent fertilization.
  72. 7(a)(i)10 marks· Biology · Unit 1 Q7 7(a)(i)Give a detailed, labelled drawing of a section of the placenta to show the relative positions of the umbilical cord and blood vessels, the villi, uterine wall, maternal blood spaces and maternal blood vessels (inclusion…
  73. 7(a)(ii)1 mark· Biology · Unit 1 Q7 7(a)(ii)In the umbilical cord use arrows to show the direction of blood flow and indicate which blood is oxygenated or deoxygenated.
  74. 7(b)(i)10 marks· Biology · Unit 1 Q7 7(b)(i)The function of the amnion
  75. 7(b)(ii)1 mark· Biology · Unit 1 Q7 7(b)(ii)The effects of the foetus on the mother
  76. 7(b)(iii)1 mark· Biology · Unit 1 Q7 7(b)(iii)The lifestyle requirements of the mother for healthy foetal development
  77. Q261 mark · multiple choice· CAPE Biology Unit 1 · 2007 · Paper 1Which of the following identifies the structure which provides nourishment for the sperm-producing cells in the testes?
  78. Q271 mark · multiple choice· CAPE Biology Unit 1 · 2007 · Paper 1One feature that is common to both sperm, (male gamete) and egg (female gamete), is
  79. Q281 mark · multiple choice· CAPE Biology Unit 1 · 2007 · Paper 1The following list represents some stages in the process of fertilization: I. Acrosome releases enzymes. II. Sperm enters cell. III. Sperm contacts jelly coat of egg. IV. Impenetrable layer forms at egg surface. Which…
  80. Q261 mark · multiple choice· CAPE Biology Unit 1 · 2007 (Specimen) · Paper 1Item 26 refers to the following stages in the development of human sperm. I. Spermatid II. Spermatogonium III. Primary Spermatocyte Which of the following combinations is the correct order of sperm formation?
  81. Q271 mark · multiple choice· CAPE Biology Unit 1 · 2007 (Specimen) · Paper 1The function of interstitial cells (cells of Leydig) is the production of
  82. Q281 mark · multiple choice· CAPE Biology Unit 1 · 2007 (Specimen) · Paper 1Item 28 refers to the diagram below which shows the levels of various hormones involved in the menstrual cycle in human females. Which ONE of the following is the most accurate deduction that can be made from the…
  83. Q291 mark · multiple choice· CAPE Biology Unit 1 · 2007 (Specimen) · Paper 1The MAIN function of the placenta in humans is that it
  84. Q301 mark · multiple choice· CAPE Biology Unit 1 · 2007 (Specimen) · Paper 1All of the following are able to cross the placenta EXCEPT
  85. Q401 mark · multiple choice· CAPE Biology Unit 1 · 2008 (Rest of Region) · Paper 1Item 40 refers to the diagram below showing a transverse section through the middle piece of the sperm. The structure labelled H is
  86. Q411 mark · multiple choice· CAPE Biology Unit 1 · 2008 (Rest of Region) · Paper 1The structure of the human sperm is suited to its function. Which of the following structures of the sperm is NOT accurately matched with its function? \begin{tabular}{|l|l|l|} \hline & \textbf{Structure} &…
  87. Q421 mark · multiple choice· CAPE Biology Unit 1 · 2008 (Rest of Region) · Paper 1The DNA of a woman contains a defective gene for gonadotrophin releasing hormone. Which hormone and site of production will be affected by this defect?
  88. Q451 mark · multiple choice· CAPE Biology Unit 1 · 2008 (Rest of Region) · Paper 1Which of the following is NOT a function of amniotic fluid?
  89. Q311 mark · multiple choice· CAPE Biology Unit 1 · 2009 · Paper 1Which of the following provides nourishment for the sperm-producing cells in the testes?
  90. Q331 mark · multiple choice· CAPE Biology Unit 1 · 2009 · Paper 1What is the function of testosterone in spermatogenesis?
  91. Q381 mark · multiple choice· CAPE Biology Unit 1 · 2009 · Paper 1Which option describes the correct order of development?
  92. Q391 mark · multiple choice· CAPE Biology Unit 1 · 2009 · Paper 1The structure labelled H is
  93. Q401 mark · multiple choice· CAPE Biology Unit 1 · 2009 · Paper 1Which of the following hormones triggers the release of the ovum from the ovary?
  94. Q411 mark · multiple choice· CAPE Biology Unit 1 · 2009 · Paper 1Which of the following is the effect of high dose progesterone-only pills?
  95. Q421 mark · multiple choice· CAPE Biology Unit 1 · 2009 · Paper 1The structure labelled X is the
  96. Q441 mark · multiple choice· CAPE Biology Unit 1 · 2009 · Paper 1The structure labelled X is MOST likely the
  97. Q451 mark · multiple choice· CAPE Biology Unit 1 · 2009 · Paper 1Which of the following is the outermost extra-embryonic membrane and contributes to the formation of the placenta?
  98. Q421 mark · multiple choice· CAPE Biology Unit 1 · 2010 · Paper 1Which of the following hormones is directly responsible for the release of the ova from the ovary?
  99. Q441 mark · multiple choice· CAPE Biology Unit 1 · 2010 · Paper 1The role of high-dose progesterone-only pills is to
  100. Q451 mark · multiple choice· CAPE Biology Unit 1 · 2010 · Paper 1Item 45 refers to the figure below which is a simplified diagram showing early stages of human embryonic development. The part that is responsible for the mechanical protection of the embryo is labelled
  101. Q311 mark · multiple choice· CAPE Biology Unit 1 · 2011 · Paper 1Item 31 refers to the following diagram which shows the stages of spermatogenesis in a mammal. Which of the following accurately lists the type of cell division occuring at E, F and G?
  102. Q381 mark · multiple choice· CAPE Biology Unit 1 · 2011 · Paper 1Which of the following measurements is closest to the diameter of a mature human ovum?
  103. Q391 mark · multiple choice· CAPE Biology Unit 1 · 2011 · Paper 1Item 39 refers to the diagram below showing the stages in the development of a follicle in a human ovary. Which of the following is the correct description of events occuring at X?
  104. Q401 mark · multiple choice· CAPE Biology Unit 1 · 2011 · Paper 1Item 40 refers to the following diagram which shows the structure of the secondary oocyte. Which of the following correctly identifies the structures labelled P and Q?
  105. Q411 mark · multiple choice· CAPE Biology Unit 1 · 2011 · Paper 1How does a secondary oocyte differ from the ovum?
  106. Q421 mark · multiple choice· CAPE Biology Unit 1 · 2011 · Paper 1During the development of a foetus in the womb, the wall of the uterus consists of a layer of muscle and the
  107. Q441 mark · multiple choice· CAPE Biology Unit 1 · 2011 · Paper 1Item 44 refers to the following diagram which shows the stages in the development of one follicle in a human ovary. In which of the following are the stages in the correct order?
  108. Q321 mark · multiple choice· CAPE Biology Unit 1 · 2012 · Paper 1Which of the following accurately lists the type of cell division occuring at E, F and G?
  109. Q361 mark · multiple choice· CAPE Biology Unit 1 · 2012 · Paper 1Which of the following correctly identifies the structures labelled P, Q, R and S?
  110. Q381 mark · multiple choice· CAPE Biology Unit 1 · 2012 · Paper 1Which option describes the correct order of development?
  111. Q401 mark · multiple choice· CAPE Biology Unit 1 · 2012 · Paper 1What is the function of testosterone in spermatogenesis?
  112. Q421 mark · multiple choice· CAPE Biology Unit 1 · 2012 · Paper 1During the development of a foetus in the womb, the wall of the uterus consists of a layer of muscle and the
  113. Q431 mark · multiple choice· CAPE Biology Unit 1 · 2012 · Paper 1Follicle-stimulating hormone (FSH) acts directly on the cells labelled
  114. Q441 mark · multiple choice· CAPE Biology Unit 1 · 2012 · Paper 1A birth control method that is used after sexual intercourse is typically referred to as a
  115. Q451 mark · multiple choice· CAPE Biology Unit 1 · 2012 · Paper 1The structure labelled X is the
  116. Q311 mark · multiple choice· CAPE Biology Unit 1 · 2013 · Paper 1Which of the following accurately lists the type of cell division occuring at E, F and G?
  117. Q391 mark · multiple choice· CAPE Biology Unit 1 · 2013 · Paper 1Which of the following hormones regulates the precise timing of ovulation?
  118. Q401 mark · multiple choice· CAPE Biology Unit 1 · 2013 · Paper 1Which of the following correctly identifies the structures labelled P and Q?
  119. Q411 mark · multiple choice· CAPE Biology Unit 1 · 2013 · Paper 1How does a secondary oocyte differ from the ovum?
  120. Q421 mark · multiple choice· CAPE Biology Unit 1 · 2013 · Paper 1Human spermatozoa have to spend several hours in the female genital tract before they can fertilize an oocyte. During this time, they are activated in a process called
  121. Q431 mark · multiple choice· CAPE Biology Unit 1 · 2013 · Paper 1The structure labelled H is MOST likely
  122. Q441 mark · multiple choice· CAPE Biology Unit 1 · 2013 · Paper 1In which of the following are the stages in the correct order?
  123. Q451 mark · multiple choice· CAPE Biology Unit 1 · 2013 · Paper 1During the development of a foetus in the womb, the uterus wall consists of the muscle of the uterus wall and the
  124. Q391 mark · multiple choice· CAPE Biology Unit 1 · 2014 · Paper 1Item 39 refers to the following diagram which shows the changes in the levels of the ovarian hormones which regulate the human menstrual cycle. Which of the following BEST describes the events highlighted by the arrows…
  125. Q401 mark · multiple choice· CAPE Biology Unit 1 · 2014 · Paper 1Item 40 refers to the following diagram showing the key stages of oogenesis. Which of the following shows the correct number of chromosomes for Stages I, II and IV? \begin{tabular}{|c|c|c|c|} \hline & \textbf{I} &…
  126. Q421 mark · multiple choice· CAPE Biology Unit 1 · 2014 · Paper 1Human spermatozoa have to spend several hours in the female genital tract before they can fertilize an oocyte. During this time, they are activated in a process called
  127. Q431 mark · multiple choice· CAPE Biology Unit 1 · 2014 · Paper 1Item 43 refers to the following diagram which shows a transverse section through the middle piece of a spermatozoon. The structure labelled H is MOST likely
  128. Q441 mark · multiple choice· CAPE Biology Unit 1 · 2014 · Paper 1Items 44–45 refer to the following diagram of a small section of the human placenta as seen in an electron micrograph. Which of the following options is correct for two visible differences between the maternal red…
  129. Q451 mark · multiple choice· CAPE Biology Unit 1 · 2014 · Paper 1Items 44–45 refer to the following diagram of a small section of the human placenta as seen in an electron micrograph. Which of the following correctly identifies the structures, X and Y? \begin{tabular}{|l|l|l|}…
  130. Q381 mark · multiple choice· CAPE Biology Unit 1 · 2015 · Paper 1The structure labelled H is
  131. Q391 mark · multiple choice· CAPE Biology Unit 1 · 2015 · Paper 1At which of the regions labelled I, II, III and IV does fertilization take place?
  132. Q401 mark · multiple choice· CAPE Biology Unit 1 · 2015 · Paper 1During spermatogenesis in a human, the first cells to divide meiotically are
  133. Q411 mark · multiple choice· CAPE Biology Unit 1 · 2015 · Paper 1The hormones W, X, Y and Z are
  134. Q421 mark · multiple choice· CAPE Biology Unit 1 · 2015 · Paper 1A sample of a woman's urine is tested at a laboratory and human chorionic gonadotrophin is detected. This indicates that
  135. Q431 mark · multiple choice· CAPE Biology Unit 1 · 2015 · Paper 1The hormone which stimulates the development of the endometrium (lining of the uterus) is
  136. Q441 mark · multiple choice· CAPE Biology Unit 1 · 2015 · Paper 1The correct sequence of events is I. Inner cell mass forms. II. The allantois fuses with the chorion. III. Chorionic villi grow. IV. Maternal blood spaces form.
  137. Q451 mark · multiple choice· CAPE Biology Unit 1 · 2015 · Paper 1During the development of a foetus in the womb, the uterus wall consists of the muscle of the uterus wall and the
  138. 3(a)(i)5 marks· CAPE Biology Unit 1 · May/June 2019 · Paper 2Draw a well-labelled flow diagram of the process of oogenesis starting from the primary oocyte.
  139. 3(a)(ii)2 marks· CAPE Biology Unit 1 · May/June 2019 · Paper 2State the role of ONE named hormone in oogenesis.
  140. 3(a)(iii)4 marks· CAPE Biology Unit 1 · May/June 2019 · Paper 2Provide annotations on ONE function of EACH of the structures labelled A–D in the diagram of a sperm cell shown in Figure 4.
  141. 3(a)(iv)2 marks· CAPE Biology Unit 1 · May/June 2019 · Paper 2Relate any ONE structural feature of a sperm cell to its functions.
  142. 3(a)(i)5 marks· CAPE Biology Unit 1 · May/June 2021 · Paper 2Plot the data from Table 1 as a line graph on the grid provided on page 17, placing the day of the cycle on the x-axis.
  143. 3(a)(ii)4 marks· CAPE Biology Unit 1 · May/June 2021 · Paper 2Outline the roles of LH and FSH in the maturation and release of the secondary oocyte during the menstrual cycle.
  144. 3(b)4 marks· CAPE Biology Unit 1 · May/June 2021 · Paper 2Outline the process of blastocyst implantation in the uterus following fertilization, including the hormonal influences involved.
  145. 3(c)4 marks· CAPE Biology Unit 1 · May/June 2022 · Paper 2Using the information given in the flow chart, outline how the body controls spermatogenesis in the human male.
  146. 3(d)(i)4 marks· CAPE Biology Unit 1 · May/June 2022 · Paper 2Using the information from Figure 6, discuss the effects of maternal smoking on foetal development. You must refer to Figure 6 in your discussion.
  147. 3(d)(ii)4 marks· CAPE Biology Unit 1 · May/June 2022 · Paper 2Discuss how TWO maternal behaviours, other than smoking, may contribute to low birth weight. You must include ONE lifestyle change that the physician may recommend for EACH maternal behaviour discussed.
  148. 3(c)12 marks· CAPE Biology Unit 1 · May/June 2024 · Paper 2Discuss how the structure of the human placenta enables it to carry out its functions of protection, production and transport. Present your response in complete paragraphs under the headings: Protection, Production, and…
  149. 3(b)(i)6 marks· CAPE Biology Unit 1 · May/June 2025 · Paper 2Explain ONE possible positive implication and ONE possible negative implication of the use of this contraceptive method in preventing unwanted pregnancy.
  150. 3(b)(ii)1 mark· CAPE Biology Unit 1 · May/June 2025 · Paper 2Recommend ONE way in which the pill may be improved to ensure that it prevents unwanted pregnancies.
  151. 3(c)(i)5 marks· CAPE Biology Unit 1 · May/June 2025 · Paper 2On the grid provided on page 23, plot a line graph to show the change in levels of oestrogen and progesterone during Jennifer's menstrual cycle.
  152. 3(c)(ii)8 marks· CAPE Biology Unit 1 · May/June 2025 · Paper 2Discuss the likelihood of EACH woman becoming pregnant based on the quantity of hormones produced as shown in Table 3 on page 22 in complete paragraphs.
  153. 3(a)(i)4 marks· CAPE Biology Unit 1 · May/June 2026 · Paper 2Identify the FOUR cells labelled S, T, U, and V in Figure 5.
  154. 3(a)(ii)2 marks· CAPE Biology Unit 1 · May/June 2026 · Paper 2State TWO parts of the sperm cell that will enter the interior of the oocyte during fertilization.
  155. 3(a)(iii)5 marks· CAPE Biology Unit 1 · May/June 2026 · Paper 2In the box provided, draw a diagram of the section of the seminiferous tubule shown in the boxed area in Figure 5.
  156. 3(a)(iv)4 marks· CAPE Biology Unit 1 · May/June 2026 · Paper 2Describe the changes a sperm undergoes during its journey in the female tract to prepare for fertilization: Capacitation and Acrosomal reaction.
  157. 3(b)(i)2 marks· CAPE Biology Unit 1 · May/June 2026 · Paper 2Based on the results shown in Figure 6, state whether or not the CuIUD would be effective in preventing unwanted pregnancies, giving one reason to support your response.
  158. 3(b)(ii)4 marks· CAPE Biology Unit 1 · May/June 2026 · Paper 2Based on the results of the study and additional observations of tissue inflammation and post-removal fertility, state TWO possible conclusions regarding the use of the zinc IUD contraceptive method, giving a reason for…

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