B2: Drugs

Question 1

What is the definition of a drug?

Answer 1

A chemical that affects the normal chemical reactions in the body or the nervous system.

Question 2

The two categories of drug are…

Answer 2

1. Medicinal drugs (medicines)

2. Recreational drugs

Question 3

What are antibiotics taken for?

Answer 3

To treat bacterial infections.

Question 4

What is a prescribed drug?

Answer 4

A drug that is given with permission by a doctor.

Question 5

Name 3 illegal recreational drugs.

Answer 5

Heroin
Cannabis
Cocaine

Question 6

Name 2 common legal recreational drugs

Answer 6

Alcohol

Nicotine (cigarettes)

Question 7

What do we mean by addiction?

Answer 7

When a person becomes dependent on a drug

Question 8

If an addict stops taking a drug they may suffer unpleasant symptoms called…

Answer 8

withdrawal symptoms

Question 9

Why are some recreational drugs illegal?

Answer 9

They can be harmful to health.

They are not prescribed by a doctor.

Question 10

What is the drug in alcoholic drinks?

Answer 10

Ethanol

Question 11

What do we call a drug that slows down the nervous system?

Answer 11

A depressant

Question 12

Which contains more alcohol? Spirits such as vodka or Beer?

Answer 12

Spirits

Question 13

What impact does alcohol have on health?

Answer 13

Stomach ulcersHeart diseaseBrain damageLiver damage (cirrhosis)

Question 14

Why does drinking alcohol lead to liver damage?

Answer 14

The liver removes alcohol form the body.The more it breaks down the more damaged it becomes.

Question 15

Why should pregnant women not drink alcohol?

Answer 15

Drinking alcohol increases risk of:- low birth weight- miscarriage- stillbirth- Fetal alcohol syndrome

Question 16

Which health problems are associated with smoking?

Answer 16

• Cancer- Breathing problems- Heart attacks- Strokes- Bronchitis (chest infections)- Emphysema (lung damage)

Question 17

Passive smoking (breathing in other peoples smoke) can increase the risk of…

Answer 17

• breathing problems.- blood circulation problems.

Question 18

What can smoking when pregnant cause?

Answer 18

• Miscarriage- Low birth weight

Question 19

What are the 3 main chemicals found in cigarette smoke?

Answer 19

• Tar- Nicotine- Carbon monoxide

Question 20

What is the effect of nicotine on the body?

Answer 20

Speeds up the nervous system, increases heart rate and narrows blood vessels.

Question 21

A drug that speeds up the nervous system is called a…

Answer 21

Stimulant

Question 22

What is carbon monoxide?

Answer 22

• a toxic gas found in cigarette smoke.- stops red blood cells carrying as much oxygen as they should.

Question 23

How does smoking cause heart disease?

Answer 23

• Causes arteries to become blocked.- This prevents blood flow - leading to heart attack or stroke.

Question 24

How does smoking cause lung (respiratory) infections?

Answer 24

1. Cilia are damaged/harmed/killed by tar.2. Dust/smoke particles/mucus build up in lungs.3. Bacteria can get into alveoli.4. They reproduce and infect the lung.

Question 25

Explain how ciliated cells keep the lungs clear from dust and mucus.

Answer 25

1. Ciliated cells have small hairs2. They waft mucus up the trachea.3. Dust gets caught in the mucus.4. The dust and mucus is transferred up and swallowed.