1A Biology Biology 1a AQA 4.0 / 5 based on 2 ratings ? BiologyGCSEAll boards Created by: KatieCreated on: 26-06-10 14:35 LDL and HDL Ideally more HDLs than LDLs in blood 1 of 17 Polyunsaturated fats lower blood cholestrol by increase removal from body and improve HDL and LDL balance 2 of 17 Mono-unsaturated fats: High diet in these = lower risk of heart attack 3 of 17 Addictive substance in cigarettes is Nicotine 4 of 17 Addictive substance is alcohol: Ethanol 5 of 17 Do statins A. Lower Blood cholestrol and lower heart disease in diabetics 6 of 17 What are the two main types of pathogen? Bacteria and viruses 7 of 17 What do ovaries produce? Oestrogen 8 of 17 What brings about fight flight response Adrenaline 9 of 17 Cns consists of: Brain and spinal cord 10 of 17 What does FSH do? Matures and develops an egg 11 of 17 What is the order of reflex arc actions? Stimulus,receptor, effector,response 12 of 17 Where are hormones secreted? Glands 13 of 17 What do antitoxins do? Kill of pathogens 14 of 17 What does oestrogen cause? pituitary gland to produce LH 15 of 17 What is homoeostasis? All functions of body which try to maintain a constant internal enviroment 16 of 17 Deficiency diseases are caused by lack of... Nutrients 17 of 17
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