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Question 1: The correct answer is True An antagonist binds to a receptor and blocks it and therefore, produces no effect.

Question 2: The correct answer is False Salbutamol is a β2 adrenoceptor antagonist and leads to smooth muscle constriction in the lungs - Salbutamol is a β2 adrenoceptor agonist which leads to smooth muscle bronchodilations in lungs.

Question 3: The correct answer is False Propranolol is a β2 adrenoceptor agonist and leads to smooth muscle relaxation in lungs - Propranolol is a β2 adrenoceptor antagonist which leads to smooth muscle bronchoconstriction.

Question 4: The correct answer is True In Parkinson’s Disease there is a relative deficiency of dopamine and an excess of acetylcholine.

Question 5: The correct answer is False Parkinson’s Disease can be treated using a dopamine antagonist - Dopamine agonists are used to treat Parkinson’s Disease symptoms.

Question 6: The correct answer is False Parkinson’s Disease can be treated using an acetylcholine agonist - Acetylcholine agonists or anticholinergics are used to treat Parkinson’s disease.

Question 7: The correct answer is True Parkinson’s Disease can be treated by blocking enzymes that break down dopamine - Dopamine in the form of levodopa is given with decarboxylase inhibitors to prevent its breakdown outside the brain. Levodopa readily crosses the blood-brain barrier.

Question 8: The correct answer is True Non-steroidal anti inflammatory drugs (NSAIDS) work by blocking cyclo-oxygenase leading to a reduction in inflammation and pain.

Question 9: The correct answer is True Ions are transported via specialist enzymes called pumps - Ions are transported via an ion transporter (or ion pump) which is an enzyme-linked transmembrane protein.

Question 10: The correct answer is True Drugs called proton pump inhibitors, such as omeprazole and lansoprazole, block the proton pump and reduce the acidity of the stomach.

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