B1 revision 0.0 / 5 ? BiologyALLGCSEAQA Created by: Hannah Louise MunroCreated on: 07-05-17 21:49 What is the correct description of nicotine and alcohol? Legal and recreational drugs. 1 of 17 Why do people find it difficult to stop smoking? They are addicted to nicotine 2 of 17 What is meant by a independent company? It is another company 3 of 17 Why is it important to do tests in a independent company? They aren't biased. 4 of 17 Why do we need carboydrates? Provide energy 5 of 17 Why do we need protein? For growth and repair of cells. 6 of 17 Why do we need fats? Provide energy 7 of 17 Why do we need vitamins? Healthy functioning of the body. 8 of 17 Why do we need minerals? For healthy growth of the body. 9 of 17 What is a balanced diet? Contains right amount of macro and micro nutrients to avoid malnorishment 10 of 17 What does fibre do? Aids digestive system to avoid constipation. 11 of 17 What does water do? Transports nutrients around the body. 12 of 17 Describe the differences between the function of a receptor and the function of an effector Receptors detect stimuli e.g light receptor. An effector reacts to the stimuli for example a muscle or a gland. 13 of 17 What is a synapse? Junction betweens neurones. 14 of 17 How does information pass through synapse? Chemicals are released to next neurone. 15 of 17 Name a sense organ co-ordinated by the spinal cord. Skin 16 of 17 What is natural selection? Allows species to respond to changes in the environment. 17 of 17
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