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🎓 Download the slides: https://www.tes.com/teaching-resource/-12989155 Cambridge IGCSE Biology (0610/0970) Chapter 16 - Reproduction Topic 16.6 - Sexually transmitted infections For exams in 2023, 2024 u0026 2025 (core and extended) As always this video follows the Cambridge syllabus exactly and contains absolutely everything you need to know for your final exam! My other channels: @igpecomplete - Cambridge IGCSE PE @ocrpecomplete - OCR GCSE PE Timestamps: 0:00 Contents 0:29 STIs, HIV and AIDS 1:28 Methods of HIV transmission 1:59 Controlling the spread of STIs Core content: - Describe a sexually transmitted infection (STI) as an infection that is transmitted through sexual contact. - State that human immunodeficiency virus (HIV) is a pathogen that causes an STI. - State that HIV infection may lead to AIDS. - Describe the methods of transmission of HIV. - Explain how the spread of STIs is controlled. Context: - 16.1 - Asexual reproduction: A process resulting in the production of genetically identical offspring from one parent. - 16.2 - Sexual reproduction: A process involving the fusion of the nuclei of two gametes to form a zygote and the production of offspring that are genetically different from each other. - 16.3 - Sexual reproduction in plants: Pollination, fertilisation and the structures of insect pollinated and wind-pollinated flowers, including petals, sepals, stamens, filaments, anthers, carpels, style, stigma, ovary and ovules. - 16.4 - Sexual reproduction in humans: Structure and function of the male and female reproductive systems, the adaptive features of sperm and egg cells and the functions of the umbilical cord, placenta, amniotic sac and amniotic fluid in the development of the fetus. - 16.5 - Sexual hormones in humans: The roles of testosterone and oestrogen during puberty, the changes that occur in the ovaries and to the lining of the uterus during the menstrual cycle and the roles of FSH, LH, progesterone and oestrogen in controlling the menstrual cycle and pregnancy.