Embedded Files
In this section (IB Topic 11.4)
In this section (IB Topic 11.4)
- Gametogenesis: mitosis, cell growth, two divisions of meiosis and differentiation.
- Gametogenesis: mitosis, cell growth, two divisions of meiosis and differentiation.
- Spermatogenesis in seminiferous tubules (produce 4 sperm cells)
- Spermatogenesis in seminiferous tubules (produce 4 sperm cells)
- Oogenesis in ovaries (produce one egg and two polar bodies)
- Oogenesis in ovaries (produce one egg and two polar bodies)
- Annotation of diagrams of mature sperm and egg cells
- Annotation of diagrams of mature sperm and egg cells
- Fertilisation (internal, external, polyspermy)
- Fertilisation (internal, external, polyspermy)
- Implantation of the blastocyst in the endometrium
- Implantation of the blastocyst in the endometrium
- Placenta and exchange
- Placenta and exchange
- hCG, progesterone, estrogen and oxytocin
- hCG, progesterone, estrogen and oxytocin
Gametogenesis
Gametogenesis
mitosis_meiosis_gametes_slides.pdfspermatogenesis_Slides.pdfoogenesis_slides.pdf
comparison_spermato-oogenesis_worksheet.pdfOvary Lab.docx11.4_Reproduction.pdf
Drawing gametes
Drawing gametes
Draw a mature sperm cell and label:
Draw a mature sperm cell and label:
- Centrosome
- Acrosome
- Nucleus
- Mitrochondria
- Flagellum
- Head
- Microtubules
- Midpiece
Draw a mature egg cell and label:
Draw a mature egg cell and label:
- Corona radiata
- Cortical granules
- Nucleus
- Cytoplasm
- Plasma membrane
- Zona pellucida
fertilization_blastocyst_steppingstones_worksheet.pdfpregnancy_ibstyle_worksheet.pdffertilization_steps_jumble_worksheet.pdf
More stuff
More stuff
Microscopy of the reproductive systems
Microscopy of the reproductive systems
The male reproductive system
The male reproductive system
- Look at a section of the testes under ×100 or ×400 magnification. Sketch and label a diagram of the seminiferous tubule region as viewed under the microscope, noting sperm at different stages of spermatogenesis.
- Next, view a prepared slide of a sperm cell under higher power (×400 or ×1000 magnification). Sketch and label a diagram of the mature sperm cell.
Female reproductive system
Female reproductive system
- View a prepared section of ovary tissue under × 100 or × 400 magnification. Sketch and label a diagram of this region as viewed under the microscope, noting any differences in the ovarian follicles you observe.
- Next, view a prepared slide of an egg cell under higher power (× 400 or × 1000 magnification). Sketch and label a diagram of the mature egg cell
Ethics of the use of stem cells
Ethics of the use of stem cells
Embryos created by in vitro fertilization can be frozen for later implantation.
o When embryos are created in a laboratory, who owns them?
o What should be done with embryos if the donor mother decides she cannot use them or prefers not to use them?
o Do you think it is ethical to sell them?
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