Try the multiple choice questions below to test your knowledge of Chapter 7. Once you have completed the test, click on 'Submit Answers for Grading' to get your results.

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This activity contains 10 questions.

	Which of the following statements is not true?   An alkaloid is any of a group of nitrogen-containing organic bases that occur in animals. A corrosive poison is one that causes destruction of the body tissues upon contact. A pesticide is a chemical agent that is used to kill pest organisms. Cyanide is one of the most toxic anions.

	Which of the following toxins comes from the castor oil plant?   Digitalin. Strychnine. Ricin. Atropine.

	The term ‘controlled drug’ is applied to:   any drug that is subject to the Misuse of Drugs Act 1971. any drug that is subject to the Intoxicating Substance (Supply) Act 1985. any prescription drug that is diverted to the black market for illegal usage. any drug that is available only on prescription.

	Which of the following statements is true?   Amphetamines prepared for injection are classified as Class A drugs, while those in powder form are classified as Class B drugs. All amphetamines are classified as Class A drugs. All amphetamines are classified as Class B drugs. Amphetamines prepared for injection are classified as Class B drugs, while those in powder form are classified as Class A drugs.

	A drug that induces alterations in perception and mood (without either arousing or inhibiting brain activity) is known as:   a cutting agent. an hallucinogen. a depressant. a stimulant.

	Which of the following is commonly known as ecstasy?   3,4-methylenedioxymethamphetamine (MDMA). 3,4-methylenedioxyamphetamine (MDA). Amphetamine. Methamphetamine.

	The active components of cannabis responsible for its hallucinogenic properties are the tetrahydrocannabinols (THCs). Which of the following forms of cannabis has the highest concentration of THCs?   Herbal cannabis. Marijuana. Hashish. Cannabis oil.

	The current UK legal limit for the maximum concentration of alcohol that is allowed in the breath of drivers is:   35μg/100ml. 35 mg/100ml. 80 mg/100ml. 80 μg/100ml.

	If an individual previously exposed to a particular substance exhibits an enhanced immune response when he encounters it for a second time, this condition is known as:   tolerance. accumulation. sensitisation. idiosyncrasy.

	Which of the following statements is not true?   A bulk sample is one that is large enough to weigh. The process of enterohepatic recirculation results in the retention of certain substances, such as cannabis metabolites, within the body for extended periods. An analyte is the chemical species that is being analysed for in the sample under test. The matrix is the entire sample including the chemical species being analysed for.

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