Reproduction 0.0 / 5 ? BiologyReproductionGCSECCEA Created by: annaquinnCreated on: 26-05-18 14:56 What is the female gamete? Ova 1 of 33 What is the male gamete? Sperm 2 of 33 How many chromosones do they each contain? 23 3 of 33 What is fertilisation? When the two nuclei combine 4 of 33 What type of cell do they form? Diploid cell 5 of 33 What name is given to the process of division? Mitosis 6 of 33 What are the two main structures of pregnancy? Uterus and Placenta 7 of 33 What vessel carries substances from the foetus to the mother? Umbilical artery 8 of 33 What substances does it carry? Urea, Carbon dioxide and other wastes 9 of 33 What vessel carries substances from the mother to the foetus? Umbilical Vein 10 of 33 What substances does it carry? Oxygen, glucose and amino acids/nutrients 11 of 33 Why do the mother and foetus' blood never mix? They may have different blood groups which would clump the cells together 12 of 33 What process causes sex hormones to be released? Puberty 13 of 33 What is the male sex hormone called? Testosterone 14 of 33 What effects does it have? Voice deepens, growth of penis and muscular body 15 of 33 What is the female sex hormone called? Oestrogen 16 of 33 What effects does it have? Menstruation, growth if breasts and widening of hips/pelvis 17 of 33 What are the three types of contraception? Mechanical, Chemical and Surgical 18 of 33 Name the mechanical contraceptive. Condom 19 of 33 Name the 2 chemical contraceptives. 1. Contraceptive pill 2. Implant 20 of 33 Name the 2 surgical contraceptives. 1. Vesectomy (male) 2. Sterilisation (female) 21 of 33 What are some causes of infertility in females? No/few eggs, acidic vagina, no lining, blocked oviducts and STI 22 of 33 What are some causes of infertility in males? Impotence, low sperm count and unhealthy sperm 23 of 33 What are 2 treatments for infertility? 1. Hormone stimulation injections and IVF 24 of 33 What does IVF stand for? InVirtroFertilisation 25 of 33 What are the 4 steps of IVF? 1. Ovarian Stimulation 2. Egg recovery 3. Fertilisation 4. Embryo transfer 26 of 33 What are the ethical problems of IVF? Older parents can conceive, sperm of dead fathers can be used, 'designer babies' 27 of 33 What is the perpose of the menstrual cycle? To prepare the female system for pregnancy 28 of 33 What happens on day 1-5? Menstruation, blood flows as the lining of the uterus breaks up 29 of 33 What happens day 6-10? The uterus lining starts to grow again 30 of 33 What happens day 11-17? Sperm in oviducts likely cause fertilisation 31 of 33 What happens day 13-15? Ovulation, egg is set free from ovary 32 of 33 What happens day 18-28? Non- fertilised egg dies and passes out of the vagina 33 of 33
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