Biology Unit 1: Keeping Healthy 0.0 / 5 ? BiologyKeeping HealthyGCSEAQA Created by: tolentinokate22Created on: 26-08-14 12:18 Why do you need a varied diet? To keep the body healthy 1 of 8 What is metabolic rate? The rate of chemical reactions in your cells 2 of 8 What are pathogens? Microorganisms such as bacteria and viruses that cause infectious diseases. 3 of 8 What is bacteria? Single-celled living organisms. 4 of 8 How does bacteria cause disease? They split into two, reproduce and produce toxins, affecting your body. Sometime they can directly damage your cells. 5 of 8 How do viruses cause disease? The take over the cells of your body as they reproduce, damaging and destroying cells. 6 of 8 What are the physical defence mechanisms against pathogens? (Name three) Skin, Scab, and Mucus 7 of 8 Name and explain one way a W.B.C protects us from disease. Ingesting microorganisms 8 of 8
Comments
No comments have yet been made