AQA-17754-Question Paper-JAN24 Unit 4 The Human Body

Level 3 Certificate/Extended Certificate APPLIED SCIENCE Unit 4 The Human Body January 2024 Afternoon Time allowed: 1 hour 30 minutes Materials For this paper you must have: • a calculator. Instructions • Use black ink or black ball-point pen. • Fill in the boxes at the top of this page. • Answer all questions. • You must answer the questions in the spaces provided. Do not write outside the box around each page or on blank pages. • If you need extra space for your answer(s), use the lined pages at the end of this book. Write the question number against your answer(s). • Do all rough work in this book. Cross through any work you do not want to be marked. Information • The marks for questions are shown in brackets. • The maximum mark for this paper is 60. Advice Read each question carefully. Answer all questions. box The human nervous system coordinates and controls our voluntary and involuntary actions. Communication between cells in the body and the brain is along neurones. . In what form do nerve impulses travel along neurones? Tick () one box. [1 mark] Chemical signal Electrical signal Light signal Sound signal Figure 1 shows a neurone. Figure 1 . Draw one line from each part of the neurone shown in Figure 1 to the correct label for that part. box [3 marks] Part of the neurone Label . Complete Figure 2 to show how the human nervous system is organised. Write your answers on lines 1, 2, 3 and 4. [4 marks] Figure 2 Question 1 continues on the next page Turn over ► The brain is part of the central nervous system. Doctors can scan a person’s brain to look for damage. Figure 3 shows some different parts of the brain. Figure 3 . Three of the four lobes in the brain are shown and labelled in Figure 3. What is the name of the fourth lobe? [1 mark] . Give the function of the occipital lobe. [1 mark] . Name the part of the brain that controls breathing rate and heart rate. [1 mark]