Question 1: Explain the main idea of the Biological Approach in psychology.

Answer: The Biological Approach suggests that behaviour and mental processes are influenced by biological factors such as genetics, brain structure, chemicals, and hormones.

Question 2: Describe how neurotransmitters can affect human behaviour.

Answer: Neurotransmitters are chemicals that transmit signals across synapses in the brain. For example, high levels of serotonin are linked to feelings of happiness and well-being, while low levels may contribute to depression.

Question 3: Identify two methods used by psychologists to study the biological basis of behaviour.

Answer: Methods include brain imaging techniques such as MRI scans and studying genetic links through twin studies.

Question 4: Describe the role of the hippocampus in human memory.

Answer: The hippocampus is a brain structure involved in the formation and retrieval of long-term memories.

Question 5: Explain how genetics can influence behaviour using an example.

Answer: Genetics can influence behaviour through inherited traits. For example, research suggests that a predisposition to mental health conditions like schizophrenia can be inherited from family members.

Question 6: Discuss one strength and one limitation of the biological approach.

Answer: A strength is that it uses scientific methods like brain scans to provide objective data. A limitation is that it may neglect environmental and psychological factors influencing behaviour.

Question 7: Draw a simple diagram of a neuron, labeling the key parts such as the cell body, dendrites, axon, and synapse.

Answer: Correct diagram should include a circle for the cell body, branching dendrites, a long axon, and a synapse at the end of the axon with labels.

Question 8: Describe how hormones can influence behaviour, giving an example.

Answer: Hormones are chemicals released into the bloodstream that affect organs and tissues. For example, adrenaline increases heart rate and alertness during stressful situations.

Question 9: Explain the significance of twin studies in understanding the biological basis of behaviour.

Answer: Twin studies compare identical and fraternal twins to estimate the influence of genetics versus environment on behaviour, helping to identify hereditary traits.

Question 10: Sketch a basic flowchart showing how a stimulus triggers a biological response in the body.

Answer: Flowchart should start with 'Stimulus' leading to 'Sensory receptors' sending signals to the brain, which processes the information and triggers a 'Biological response'.