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Reproduction in Plants · CAPE Biology Unit 1

151 past-paper questions on Reproduction in Plants, part of Reproductive Biology, from every CAPE Biology Unit 1 paper on Quelpr.

Practise Reproduction in Plants
  1. 2(a)3 marks· Biology · Unit 1 Q2 2(a)Make an accurate drawing of the upper group of chromosomes in Figure 1 above, which are opposite to the micropylar end. Your drawing of the group of chromosomes should be THREE times larger than the group in the…
  2. 2(a)3 marks· Biology · Unit 1 Q2 2(a)Identify the structures labelled A to F in Figure 3.
  3. 2(a)(ii)1 mark· Biology · Unit 1 Q2 2(a)(ii)State the TYPE of division and the STAGE shown in Figure 1 on page 6.
  4. 2(b)4 marks· Biology · Unit 1 Q2 2(b)In the space provided below, draw a plan diagram to show the distribution of the different types of tissues in Box A in Figure 3. Make your drawing TWO TIMES the size of Box A. (No labels required).
  5. 2(b)1 mark· Biology · Unit 1 Q2 2(b)What happens to the layer labelled L in Figure 1 on page 6, after fertilization?
  6. 2(c)1 mark· Biology · Unit 1 Q2 2(c)The photograph in Figure 3 has been magnified 150 times. What is the ACTUAL width of the specimen, from X1 to X2.
  7. 2(c)3 marks· Biology · Unit 1 Q2 2(c)Complete the drawing below to show the contents of the ovary, and indicate by means of a rectangle drawn to scale, in ink, where the photograph of Figure 1 fits into your drawing. Label the rectangle "Import from Figure…
  8. 2(d)2 marks· Biology · Unit 1 Q2 2(d)Figure 4 is a diagram of pollen grain 'P' shown on Figure 3. Draw and label the nucleus/nuclei in the correct location in the cell.
  9. 2(d)2 marks· Biology · Unit 1 Q2 2(d)Explain how the 6 nucleoli arise in this nucleus.
  10. 3(a)3 marks· Biology · Unit 1 Q3 3(a)Using any feature of the pollen grains shown in Figure 3, create a set of dichotomous keys to distinguish between the plants by means of their pollen grains.
  11. 3(a)6 marks· Biology · Unit 1 Q3 3(a)In the box below, make a plan drawing of the anther in Figure 2. Use annotated labels to identify TWO tissues.
  12. 3(a)(i)2 marks· Biology · Unit 1 Q3 3(a)(i)Define the terms 'asexual reproduction' and 'vegetative propagation'.
  13. 3(a)(i)2 marks· Biology · Unit 1 Q3 3(a)(i)Complete Figure 4 to show the missing stages in the boxes labelled A and B.
  14. 3(a)(i)4 marks· Biology · Unit 1 Q3 3(a)(i)On the grid provided in Figure 4, plot line graphs for the data given in Table 3.
  15. 3(a)(i)a)2 marks· Biology · Unit 1 Q3 3(a)(i)a)Draw on the diagram in Figure 4 the ovule.
  16. 3(a)(i)b)1 mark· Biology · Unit 1 Q3 3(a)(i)b)Draw on the diagram in Figure 4 the path taken by the germinating pollen grain.
  17. 3(a)(ii)2 marks· Biology · Unit 1 Q3 3(a)(ii)Briefly describe the overall trend for the effect of different sucrose concentrations, in both culture media, on the germination rate of the palm pollen.
  18. 3(a)(ii)1 mark· Biology · Unit 1 Q3 3(a)(ii)Structures such as bulbs, corms and tubers are suitable for use in vegetative propagation. State ONE characteristic of the tissue of these structures, which facilitates this function (vegetative propagation).
  19. 3(a)(ii)1 mark· Biology · Unit 1 Q3 3(a)(ii)Use an arrow labelled C to indicate on Figure 4 where meiosis occurs during the development of the embryo sac.
  20. 3(a)(ii)2 marks· Biology · Unit 1 Q3 3(a)(ii)On Figure 4, label TWO features of the embryo sac.
  21. 3(a)(iii)1 mark· Biology · Unit 1 Q3 3(a)(iii)Use an arrow labelled D to indicate the location of the female gamete on Figure 4.
  22. 3(a)(iii)1 mark· Biology · Unit 1 Q3 3(a)(iii)State ONE function, other than vegetative propagation, that is often carried out by bulbs, corms and tubers.
  23. 3(a)(iii)2 marks· Biology · Unit 1 Q3 3(a)(iii)Based on the results shown in Table 3, what can be deduced about the effect of the type of culture medium on the maximum rate of pollen germination?
  24. 3(a)(iii)2 marks· Biology · Unit 1 Q3 3(a)(iii)Identify ONE role for EACH of the features in (ii) above.
  25. 3(a)(iv)4 marks· Biology · Unit 1 Q3 3(a)(iv)Angiosperms and mammals both produce haploid gametes. Comment on TWO OTHER ways in which sexual reproduction in angiosperms and mammals may be similar.
  26. 3(b)2 marks· Biology · Unit 1 Q3 3(b)Write the correct labels for A, B, C and D.
  27. 3(b)1 mark· Biology · Unit 1 Q3 3(b)Figure 4 is a diagram of a cross section of a fertilized ovule of a flowering plant.
  28. 3(b)(i)2 marks· Biology · Unit 1 Q3 3(b)(i)Briefly describe the results of this experiment shown in Figure 5.
  29. 3(b)(i)4 marks· Biology · Unit 1 Q3 3(b)(i)Briefly describe FOUR MAIN features of the pollen grain shown in Figure 3.
  30. 3(b)(i)1 mark· Biology · Unit 1 Q3 3(b)(i)On Figure 4, indicate, using an arrow labelled X, the structure which will develop a radicle and plumule.
  31. 3(b)(i)1 mark· Biology · Unit 1 Q3 3(b)(i)State the term used to describe this reproductive feature.
  32. 3(b)(ii)4 marks· Biology · Unit 1 Q3 3(b)(ii)Explain the significance of this response for the pollination process.
  33. 3(b)(ii)3 marks· Biology · Unit 1 Q3 3(b)(ii)In the box below, draw and label the structure of the pollen grain at the END of germination.
  34. 3(b)(ii)2 marks· Biology · Unit 1 Q3 3(b)(ii)Identify the structure labelled Y and explain its role in the developing embryo.
  35. 3(b)(ii)1 mark· Biology · Unit 1 Q3 3(b)(ii)State ONE disadvantage to the plant in having this feature.
  36. 3(b)(iii)2 marks· Biology · Unit 1 Q3 3(b)(iii)State ONE major change that occurs when a pollen grain germinates and explain its significance.
  37. 3(b)(iii)3 marks· Biology · Unit 1 Q3 3(b)(iii)An orange is described as a fleshy fruit. Name the part of a flowering plant which develops into a fleshy fruit after the ovule has been fertilized. Comment on the importance of the fruit, such as an orange, in the life…
  38. 3(c)3 marks· Biology · Unit 1 Q3 3(c)Comment on the fate of the structure labelled X and the structure labelled Y, which includes the ovule walls and the embryo sac and its contents.
  39. 3(c)2 marks· Biology · Unit 1 Q3 3(c)The stigma plays an important role in fertilization by providing a location for the pollen to be deposited. Explain TWO other ways in which the stigma plays an important role in fertilization.
  40. 3(c)(i)3 marks· Biology · Unit 1 Q3 3(c)(i)Describe the events following pollination which lead to double fertilization.
  41. 3(c)(i)2 marks· Biology · Unit 1 Q3 3(c)(i)Suggest TWO mechanisms that occur NATURALLY in plants to aid NON-SEXUAL propagation.
  42. 3(c)(ii)2 marks· Biology · Unit 1 Q3 3(c)(ii)State the significance of double fertilization to the human diet.
  43. 3(c)(ii)1 mark· Biology · Unit 1 Q3 3(c)(ii)State ONE advantage of the mechanisms you identified in (c) (i).
  44. 3(d)3 marks· Biology · Unit 1 Q3 3(d)Discuss THREE advantages of these methods over the natural methods of non-sexual propagation.
  45. 6(a)6 marks· Biology · Unit 1 Q6 6(a)Using named flowering plants, describe TWO different methods used to promote cross pollination.
  46. 6(a)7 marks· Biology · Unit 1 Q6 6(a)Outline the steps involved in plant tissue culture AND explain the key scientific principle underlying this technique.
  47. 6(a)6 marks· Biology · Unit 1 Q6 6(a)Define the term 'pollination' and describe the sequence of events from pollination to fertilization.
  48. 6(a)5 marks· Biology · Unit 1 Q6 6(a)Giving examples, discuss TWO advantages of vegetative propagation of plants.
  49. 6(a)(i)4 marks· Biology · Unit 1 Q6 6(a)(i)Explain TWO mechanisms for the promotion of cross-fertilization in plants.
  50. 6(a)(i)2 marks· Biology · Unit 1 Q6 6(a)(i)Define the term 'vegetative propagation'.
  51. 6(a)(i)4 marks· Biology · Unit 1 Q6 6(a)(i)Distinguish between ‘binary fission' and 'budding'.
  52. 6(a)(i)3 marks· Biology · Unit 1 Q6 6(a)(i)Explain why vegetative propagation is NOT considered a form of sexual reproduction. Include in your explanation a brief definition of 'vegetative propagation'.
  53. 6(a)(ii)4 marks· Biology · Unit 1 Q6 6(a)(ii)Discuss ONE advantage and ONE disadvantage of asexual reproduction.
  54. 6(a)(ii)7 marks· Biology · Unit 1 Q6 6(a)(ii)Discuss FOUR advantages and THREE disadvantages of using tissue culture as a method of vegetative propagation.
  55. 6(a)(ii)4 marks· Biology · Unit 1 Q6 6(a)(ii)Comment on why vegetative propagation is especially beneficial to agriculturists and horticulturists. Limit your commentary to FOUR main points.
  56. 6(a)(ii)7 marks· Biology · Unit 1 Q6 6(a)(ii)Evaluate the genetic consequences of self-fertilization and cross-fertilization in plants.
  57. 6(b)3 marks· Biology · Unit 1 Q6 6(b)Explain the term 'double fertilization' and briefly discuss the significance of the process.
  58. 6(b)(i)2 marks· Biology · Unit 1 Q6 6(b)(i)Distinguish between the terms 'pollination' and 'fertilization'.
  59. 6(b)(i)5 marks· Biology · Unit 1 Q6 6(b)(i)Outline the sequence of events that leads from germination of a pollen grain to double fertilization in flowering plants.
  60. 6(b)(ii)2 marks· Biology · Unit 1 Q6 6(b)(ii)Briefly comment on the significance of double fertilization in the life cycle of a flowering plant.
  61. 6(b)(ii)4 marks· Biology · Unit 1 Q6 6(b)(ii)Describe TWO reproductive strategies used by plants to promote cross-fertilization.
  62. 6(c)6 marks· Biology · Unit 1 Q6 6(c)Describe the development of fruit and seed structures from floral structures after fertilization.
  63. 6(c)6 marks· Biology · Unit 1 Q6 6(c)Discuss the importance of the changes which occur following fertilization, making reference to changes in the zygote, endosperm, the ovule and ovary.
  64. 6(c)4 marks· Biology · Unit 1 Q6 6(c)Describe the structure of a young plant ovule.
  65. 6(d)4 marks· Biology · Unit 1 Q6 6(d)Discuss the relative merits of cross-fertilisation and self-fertilisation in plants.
  66. 7(a)10 marks· Biology · Unit 1 Q7 7(a)Describe the structure of the anther and the way in which pollen grains are formed within it.
  67. 7(b)5 marks· Biology · Unit 1 Q7 7(b)Name the type of fertilisation exhibited by EACH of the following plants and briefly explain the mechanism being used: In the flower Chamaenerion angustifolia, the stamens and carpels reach maturity at different times.…
  68. 7(c)5 marks· Biology · Unit 1 Q7 7(c)Discuss the advantages and disadvantages of each type of reproduction in these plants.
  69. Q231 mark · multiple choice· CAPE Biology Unit 1 · 2007 · Paper 1The areas labelled X represent
  70. Q241 mark · multiple choice· CAPE Biology Unit 1 · 2007 · Paper 1The micropyle and funicle are represented by
  71. Q251 mark · multiple choice· CAPE Biology Unit 1 · 2007 · Paper 1The following diagram shows the formation of gametes in a carpel of a flowering plant. Which of the following correctly identifies the number of sets of chromosomes present at each numbered stage?
  72. Q241 mark · multiple choice· CAPE Biology Unit 1 · 2007 (Specimen) · Paper 1Item 24 refers to the diagram below showing a fertilised ovule and carpel. Which of the following represents the structures which will become the I. embryo II. testa III. micropyle of the seed
  73. Q251 mark · multiple choice· CAPE Biology Unit 1 · 2007 (Specimen) · Paper 1Item 25 refers to the diagram below which shows a germinating pollen grain and a mature ovule. The nucleus which fuses with the male nucleus to form the zygote is
  74. Q311 mark · multiple choice· CAPE Biology Unit 1 · 2008 (Rest of Region) · Paper 1Which of the following methods of asexual reproduction is INCORRECT, either by its definition or its example?
  75. Q331 mark · multiple choice· CAPE Biology Unit 1 · 2008 (Rest of Region) · Paper 1Item 33 refers to the diagram below which shows the transverse section of an anther. Which of the labelled structures will produce the gametes?
  76. Q341 mark · multiple choice· CAPE Biology Unit 1 · 2008 (Rest of Region) · Paper 1Item 34 refers to the diagram below which shows the development of the embryo sac and female gamete. The processes occurring at Stages 1, 2, 3, and 4 are
  77. Q351 mark · multiple choice· CAPE Biology Unit 1 · 2008 (Rest of Region) · Paper 1The following are advantages of two types of pollination: I. No need for another plant II. Increases vigour III. Widens gene pool IV. Does not lose advantageous phenotypes Which of the above are specific to cross…
  78. Q361 mark · multiple choice· CAPE Biology Unit 1 · 2008 (Rest of Region) · Paper 1When the pollen grain alights on the stigma and starts to grow, the first action is that
  79. Q371 mark · multiple choice· CAPE Biology Unit 1 · 2008 (Rest of Region) · Paper 1Which of the following is the correct sequence of events that follows the fertilisation of a flower of an endospermous plant?
  80. Q381 mark · multiple choice· CAPE Biology Unit 1 · 2008 (Rest of Region) · Paper 1Item 38 refers to the table below which shows results before and after fertilisation in plants. \begin{tabular}{|l|l|} \hline \textbf{Before Fertilisation} & \textbf{After Fertilisation} \\ \hline Ovary and contents &…
  81. Q321 mark · multiple choice· CAPE Biology Unit 1 · 2009 · Paper 1Which of the following is NOT a part of the anther?
  82. Q341 mark · multiple choice· CAPE Biology Unit 1 · 2009 · Paper 1A diploid nucleus is formed at
  83. Q351 mark · multiple choice· CAPE Biology Unit 1 · 2009 · Paper 1Which structure is responsible for the release of pollen grains?
  84. Q361 mark · multiple choice· CAPE Biology Unit 1 · 2009 · Paper 1Which of the following structures of the seed is derived from a triploid nucleus?
  85. Q371 mark · multiple choice· CAPE Biology Unit 1 · 2009 · Paper 1The role of X is to
  86. Q431 mark · multiple choice· CAPE Biology Unit 1 · 2009 · Paper 1The following are advantages of two types of pollination. I. No need for another plant II. Increases vigour III. Widens gene pool IV. Advantageous phenotypes retained Which of the above are specific to cross…
  87. Q311 mark · multiple choice· CAPE Biology Unit 1 · 2010 · Paper 1Which of the following methods of asexual reproduction is INCORRECT, either by its definition or its example?
  88. Q321 mark · multiple choice· CAPE Biology Unit 1 · 2010 · Paper 1Which of the following structures is NOT involved in asexual reproduction?
  89. Q331 mark · multiple choice· CAPE Biology Unit 1 · 2010 · Paper 1In some plants the androecium matures before the gynoecium. Such plants are described as
  90. Q341 mark · multiple choice· CAPE Biology Unit 1 · 2010 · Paper 1When the pollen grain alights on the stigma and starts to grow, the first action is that
  91. Q351 mark · multiple choice· CAPE Biology Unit 1 · 2010 · Paper 1Item 35 refers to the diagram below which shows an anther. Which of the numbered structures produces the gametes?
  92. Q371 mark · multiple choice· CAPE Biology Unit 1 · 2010 · Paper 1Items 37 and 38 refer to the diagram below which shows a longitudinal section through an ovule of an angiosperm. After fertilization, the region labelled X will develop into the
  93. Q381 mark · multiple choice· CAPE Biology Unit 1 · 2010 · Paper 1Items 37 and 38 refer to the diagram below which shows a longitudinal section through an ovule of an angiosperm. The role of Y is to
  94. Q321 mark · multiple choice· CAPE Biology Unit 1 · 2011 · Paper 1The following are advantages of two types of pollination. I. No need for another plant II. Increases vigour III. Widens gene pool IV. Does not lose advantageous phenotypes Which of the above are specific to cross…
  95. Q331 mark · multiple choice· CAPE Biology Unit 1 · 2011 · Paper 1Which of the following options correctly describes the chromosome number in the named plant structures?
  96. Q341 mark · multiple choice· CAPE Biology Unit 1 · 2011 · Paper 1Item 34 refers to the diagram below showing the transverse section of an anther. The structure labelled Y is the
  97. Q351 mark · multiple choice· CAPE Biology Unit 1 · 2011 · Paper 1In some plants the androecium matures before the gynoecium. Such plants are described as
  98. Q361 mark · multiple choice· CAPE Biology Unit 1 · 2011 · Paper 1When a pollen grain alights on the stigma and starts to grow, the first action is that
  99. Q371 mark · multiple choice· CAPE Biology Unit 1 · 2011 · Paper 1In plants the ovary is BEST described as the
  100. Q451 mark · multiple choice· CAPE Biology Unit 1 · 2011 · Paper 1Item 45 refers to the diagram below which shows a longitudinal section through an ovule of an angiosperm. The role of Y is to
  101. Q311 mark · multiple choice· CAPE Biology Unit 1 · 2012 · Paper 1Which of the following methods of asexual reproduction is INCORRECT, either by its definition or its examples?
  102. Q331 mark · multiple choice· CAPE Biology Unit 1 · 2012 · Paper 1The following are advantages of two types of pollination. I. No need for another plant II. Increases vigour III. Widens gene pool IV. No loss of advantageous phenotypes Which of the above are specific to cross…
  103. Q341 mark · multiple choice· CAPE Biology Unit 1 · 2012 · Paper 1The processes occuring at Stages 1, 2, 3, and 4 respectively are
  104. Q351 mark · multiple choice· CAPE Biology Unit 1 · 2012 · Paper 1In some plants the androecium matures before the gynoecium. Such plants are described as
  105. Q371 mark · multiple choice· CAPE Biology Unit 1 · 2012 · Paper 1In plants the ovary is BEST described as the
  106. Q391 mark · multiple choice· CAPE Biology Unit 1 · 2012 · Paper 1Which of the following statements describes the events occurring in asexual reproduction ONLY?
  107. Q321 mark · multiple choice· CAPE Biology Unit 1 · 2013 · Paper 1Which of the following are advantages of cross pollination? I. No need for another plant. II. Increases vigour. III. Widens gene pool. IV. Does not lose advantageous phenotypes.
  108. Q331 mark · multiple choice· CAPE Biology Unit 1 · 2013 · Paper 1Which of the following is formed during pollen grain development?
  109. Q341 mark · multiple choice· CAPE Biology Unit 1 · 2013 · Paper 1Which of the following describes protogyny?
  110. Q351 mark · multiple choice· CAPE Biology Unit 1 · 2013 · Paper 1A horticulturalist has bred a Hibiscus variety which bears violet flowers. Which method of propagation would be MOST appropriate for rapid production of a large number of clonal plants?
  111. Q361 mark · multiple choice· CAPE Biology Unit 1 · 2013 · Paper 1Which of the following occur in asexual reproduction ONLY?
  112. Q371 mark · multiple choice· CAPE Biology Unit 1 · 2013 · Paper 1A diploid nucleus is formed at
  113. Q381 mark · multiple choice· CAPE Biology Unit 1 · 2013 · Paper 1Which row in the table shows the CORRECT chromosome number for the structures indicated? | | n | 2n | 3n | |---|---|---|---| | (A) | Pollen tube nucleus | Cotyledon | Endosperm | | (B) | Pollen tube nucleus | Endosperm…
  114. Q311 mark · multiple choice· CAPE Biology Unit 1 · 2014 · Paper 1Items 31–32 refer to the following diagram showing the embryo sac of a flowering plant. In answering items 31–32, each labelled part may be used once, more than once or not at all. Which of the labelled structures is…
  115. Q321 mark · multiple choice· CAPE Biology Unit 1 · 2014 · Paper 1Items 31–32 refer to the following diagram showing the embryo sac of a flowering plant. In answering items 31–32, each labelled part may be used once, more than once or not at all. Which of the labelled structures…
  116. Q331 mark · multiple choice· CAPE Biology Unit 1 · 2014 · Paper 1Which of the following are formed during the development of pollen grains?
  117. Q341 mark · multiple choice· CAPE Biology Unit 1 · 2014 · Paper 1Which of the following types of plants use mechanisms which guarantee cross fertilization?
  118. Q351 mark · multiple choice· CAPE Biology Unit 1 · 2014 · Paper 1A horticulturalist has bred a \textit{Hibiscus} variety which bears violet flowers. Which method of propagation would be MOST appropriate for rapid production of a large number of clonal plants?
  119. Q361 mark · multiple choice· CAPE Biology Unit 1 · 2014 · Paper 1Which of the following occur in asexual reproduction ONLY?
  120. Q371 mark · multiple choice· CAPE Biology Unit 1 · 2014 · Paper 1Item 37 refers to the following flow chart which shows the life cycle of a flowering plant. Which of the following pairs correctly shows where meiosis takes place?
  121. Q381 mark · multiple choice· CAPE Biology Unit 1 · 2014 · Paper 1Which of the following is true about double fertilization in flowering plants?
  122. Q311 mark · multiple choice· CAPE Biology Unit 1 · 2015 · Paper 1A horticulturalist has bred a Hibiscus variety which bears violet flowers. Which method of propagation would be MOST appropriate for rapid production of a large number of clonal plants?
  123. Q321 mark · multiple choice· CAPE Biology Unit 1 · 2015 · Paper 1Which of the following occur in asexual reproduction ONLY?
  124. Q331 mark · multiple choice· CAPE Biology Unit 1 · 2015 · Paper 1Which of the following terms is the MOST appropriate to describe a plant in which the anthers of the flower mature before the stigma?
  125. Q341 mark · multiple choice· CAPE Biology Unit 1 · 2015 · Paper 1Which of the following methods of asexual reproduction is INCORRECT, either by its definition or its examples?
  126. Q361 mark · multiple choice· CAPE Biology Unit 1 · 2015 · Paper 1Which row in the following table shows the correct chromosome number for the structures indicated?
  127. Q371 mark · multiple choice· CAPE Biology Unit 1 · 2015 · Paper 1The role of Y is to
  128. 3(b)(i)3 marks· CAPE Biology Unit 1 · May/June 2019 · Paper 2Complete the table to show the extent of fertilization possible between the given genotypes of the parents using -, +, or -+.
  129. 3(b)(ii)6 marks· CAPE Biology Unit 1 · May/June 2019 · Paper 2Differentiate between: self-incompatibility and male sterility; monoecy and dioecy; and protandry and protogyny.
  130. 3(c)(i)4 marks· CAPE Biology Unit 1 · May/June 2019 · Paper 2Explain TWO major genetic consequences of self-pollination.
  131. 3(c)(ii)4 marks· CAPE Biology Unit 1 · May/June 2019 · Paper 2Explain TWO major genetic consequences of cross pollination.
  132. 3(c)(i)2 marks· CAPE Biology Unit 1 · May/June 2021 · Paper 2State the developmental change in each of the labelled structures, A and B, during the transition from floral tissues to fruit tissues.
  133. 3(c)(ii)15 marks· CAPE Biology Unit 1 · May/June 2021 · Paper 2Discuss three advantages of asexual reproduction in plants for agriculture, including one limitation for each advantage discussed.
  134. 3(a)(i)2 marks· CAPE Biology Unit 1 · May/June 2022 · Paper 2State a suitable hypothesis for this experiment.
  135. 3(a)(ii)1 mark· CAPE Biology Unit 1 · May/June 2022 · Paper 2State ONE possible source of error in the experiment.
  136. 3(a)(iii)1 mark· CAPE Biology Unit 1 · May/June 2022 · Paper 2State ONE change in the experiment that could have overcome the error stated in (a)(ii).
  137. 3(a)(iv)1 mark· CAPE Biology Unit 1 · May/June 2022 · Paper 2Identify ONE responding variable in the experiment.
  138. 3(b)(i)1 mark· CAPE Biology Unit 1 · May/June 2022 · Paper 2State the function of the Epidermis in the anther of a stamen.
  139. 3(b)(ii)1 mark· CAPE Biology Unit 1 · May/June 2022 · Paper 2State the function of the Tapetum in the anther of a stamen.
  140. 3(b)(iii)1 mark· CAPE Biology Unit 1 · May/June 2022 · Paper 2State the function of Pollen mother cells in the anther of a stamen.
  141. 3(b)(iv)3 marks· CAPE Biology Unit 1 · May/June 2022 · Paper 2Starting from the pollen mother cell, outline the steps in pollen grain formation.
  142. 3(b)(v)3 marks· CAPE Biology Unit 1 · May/June 2022 · Paper 2Explain the significance of double fertilization in the embryo sac of a flower.
  143. 3(a)(i)3 marks· CAPE Biology Unit 1 · May/June 2024 · Paper 2Identify the structures labelled U, V and W on the young ovule in Figure 5.
  144. 3(a)(ii)4 marks· CAPE Biology Unit 1 · May/June 2024 · Paper 2Describe EACH of the processes labelled X and Y in Figure 5.
  145. 3(a)(iii)3 marks· CAPE Biology Unit 1 · May/June 2024 · Paper 2On the diagram in Figure 5 on page 20, complete the diagram by drawing the nuclei in their correct positions in the developed embryo sac represented at Z.
  146. 3(b)(i)5 marks· CAPE Biology Unit 1 · May/June 2024 · Paper 2Draw a diagram of the germinating lily pollen shown in Figure 6 in the space provided.
  147. 3(b)(ii)3 marks· CAPE Biology Unit 1 · May/June 2024 · Paper 2Figure 6 shows the first of a sequence of events that occurs from pollination to fertilization in plants. Explain the importance of the pollen tube in fertilization.
  148. 3(a)(i)1 mark· CAPE Biology Unit 1 · May/June 2025 · Paper 2Name the structure labelled X in Figure 5.
  149. 3(a)(ii)6 marks· CAPE Biology Unit 1 · May/June 2025 · Paper 2Outline THREE ways in which the endosperm contributes to the development of the seed.
  150. 3(a)(iii)3 marks· CAPE Biology Unit 1 · May/June 2025 · Paper 2List THREE advantages of sexual reproduction in plants.
  151. 3(c)9 marks· CAPE Biology Unit 1 · May/June 2026 · Paper 2Discuss how the stages shown in Figure 7 lead to the development of the seed coat, endosperm, and embryo after fertilization. Present your response in complete paragraphs for Seed coat, Endosperm, and Embryo.

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