11.4 - Sexual reproduction
Assessment statements
| DCS Topic Code | Statement | Guidance |
| 11.4.U1 | Spermatogenesis and oogenesis both involve mitosis, cell growth, two divisions of meiosis and differentiation. | |
| 11.4.U2 | Processes in spermatogenesis and oogenesis result in different numbers of gametes with different amounts of cytoplasm. | |
| 11.4.U3 | Fertilization in animals can be internal or external. | |
| 11.4.U4 | Fertilization involves mechanisms that prevent polyspermy. | Fertilization involves the acrosome reaction, fusion of the plasma membrane of the egg and sperm and the cortical reaction. |
| 11.4.U5 | Implantation of the blastocyst in the endometrium is essential for the continuation of pregnancy. | |
| 11.4.U6 | HCG stimulates the ovary to secrete progesterone during early pregnancy. | |
| 11.4.U7 | The placenta facilitates the exchange of materials between the mother and fetus. | |
| 11.4.U8 | Estrogen and progesterone are secreted by the placenta once it has formed. | |
| 11.4.U9 | Birth is mediated by positive feedback involving estrogen and oxytocin. | |
| 11.4.A1 | The average 38-week pregnancy in humans can be positioned on a graph showing the correlation between animal size and the development of the young at birth for other mammals. | |
| 11.4.S1 | Annotation of diagrams of seminiferous tubule and ovary to show the stages of gametogenesis. | |
| 11.4.S2 | Annotation of diagrams of mature sperm and egg to indicate functions. |
Video lessons
Battle of the Beaks
Languages
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Class activities
Bug Hunters activity
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Review materials
Review Lecture