Question

How are drugs able to affect brain chemicals?

		None of the above are true.
		Drugs of abuse have similar chemical structures to natural feel-good chemicals in the brain.
		Drugs of abuse have negative effects on the brain’s reward system.
		Drugs of abuse have opposite affects to natural euphoria brain chemicals.

Which enzyme is responsible for converting viral RNA to viral DNA?

		RNA polymerase
		DNA transcriptase
		DNA polymerase
		Reverse transcriptase

Sophia suffers from appendicitis, therefore which part of her gastrointestinal tract is inflamed?

		a part of the esophagus
		a part of the stomach
		a part of the pharynges
		a part of the small intestine

Match the following drugs to their effects.

    1) Nicotine                            A) Sedative, hypnotic, anti-anxiety & muscle relaxation

    2) Amphetamines                             B) Releases dopamine & causes brief euphoria

    3) Benzodiazepines C) Insomnia, paranoia, difficulty eating & hyper-excitability

    4) Opioids D) Itchiness, nausea, constipation & fatality

		1A, 2B, 3C, 4D
		1B, 2C, 3A, 4D
		1C, 2D, 3B, 4A
		1D, 2A, 3B, 4C

A person’s mental health is their general state of well-being and state of mind. It is mainly characterized by all of the following, except:

		how we handle stress and make choices.
		how we think, feel, and act.
		how we communicate and behave.
		emotional, psychological, and social well-being.

A cross country skier has a Vital capacity of 4.5 liters and a Residual capacity of 1.2 liters. How much is his Total Lung capacity?

		5.7 liters
		0.5 liters
		3.5 liters
		1.2 liters

Answer 1

1. Correct answer is None of the above. The drugs when introduced in body produce Euphoric brain chemicals from the brains reward system. These drugs of abuse only stimulate the brains to secrete the feel good chemicals but do not have similar chemical structure to them. They do not act as such chemicals but stimulate their production.

2. Correct answer is Reverse tranasciptase. In virus reverse transcriptase synthesise Virley DNA from Viral RNA by reverse transcription process.

3. Correct answer is A part of small intestine. Appendix is a small pouch like structure attached to the intestine.

4. The correct answer is 1B, 2C, 3A, 4D

1. Nicotine - B) Releases dopamine & causes brief euphoria
2. Amphetamines - C) Insomnia, paranoia, difficulty eating & hyper-excitability
3. Benzodiazepines - A) Sedative, hypnotic, anti-anxiety & muscle relaxation
4. Opoids - D) Itchiness, nausea, constipation & fatality

5. The correct answer is how we handle stress and make choices. The general state of mind describes the behavioural and emotional well being of a individual. It is about how people think, feel and behave about various things and how they communicate and behave for their social well being.

6. The correct answer is 5.7. The total lung capacity is equal to the net volume of residual volume and vital capacity added. Thus 4.5 + 1.2 litres is equal to 5.7 liters.

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