2.5 Response and regulation

Practice questions on Response and regulation

• Describe how a nerve impulse travels from a receptor to an effector in a simple reflex arc… (4 marks, Describe)
• Explain why reflex actions are important for survival. (4 marks, Explain)
• Describe the roles of the central nervous system (CNS) and effectors in producing a respon… (4 marks, Describe)
• Define the term 'synapse' and explain how a nerve impulse is transmitted across one. (4 marks, Define and Explain)
• Describe the role of glucagon in regulating blood glucose concentration. (4 marks, Describe)
• Explain how the structure of a neurone is related to its function in transmitting nerve im… (4 marks, Explain)
• Explain how the hormone insulin helps to regulate blood glucose concentration after a meal… (4 marks, Explain)
• Explain how the body responds to prevent the core body temperature from falling too low wh… (4 marks, Explain)
• Explain how the body responds to prevent overheating when core body temperature rises abov… (4 marks, Explain)
• Explain how the hormone adrenaline prepares the body for a 'fight or flight' response. (4 marks, Explain)
• Explain how the body responds when blood glucose concentration falls below the normal leve… (4 marks, Explain)
• Describe how the body responds when blood glucose concentration rises above the normal lev… (4 marks, Describe)
• Explain why maintaining a constant internal body temperature is important for enzyme-contr… (4 marks, Explain)
• Explain how the body uses hormones to return blood glucose concentration to the normal lev… (4 marks, Explain)
• Explain how the body responds when blood glucose concentration falls below the normal leve… (4 marks, Explain)